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The Imaging Resource
Quick Review
Canon PowerShot A75 Digital Camera
| CameraQuickLook | |
| 5/15/2004 | |
User Level | |
Digicam Design | |
| Good, 3.2-megapixelCCD | |
Print Sizes | 4x6, 5x7,8x10 inches |
| April, 2004 | |
Suggested RetailPrice (At introduction) | $299 |
Introduction
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The Canon PowerShot A75 is the 2004 update to Canon's wildly popular PowerShotA70 model from 2003. Changes from the earlier PowerShot A70 are evolutionaryrather than revolutionary, but there are plenty of them nonetheless. There'sa larger LCD (1.8 inches, up from 1.5), more Special modes, and a faster, moreefficient DIGIC processor. The PowerShot A75 also debutsat $50 cheaper than its predecessor. Featuring a full 13 shooting modes, theCanon A75 offers not only manual and full-auto exposure control, but five presetcapture modes, and six Scene modes to boot. The A75 has a maximum shutter speedof 1/2,000 second, and includes a Custom white balance setting. Best of all,the camera accommodates a wide range of users with its variable level of exposurecontrol. Experienced shooters will appreciate the Manual, Aperture Priority,and Shutter Priority modes, while novices will find the Auto, Program AE, andScene modes useful. Plus, the PowerShot A75 has a 9-point AF system (up fromthe A70's 5-point AF), and the benefit of Canon optics with its 3x zoom lens.Advanced features continue with an orientation sensor, date imprint mode, manualfocus, and the new Print/Share button that is appearing on all new Canon PowerShots.Will the A75 enjoy the same exceptional popularity as did the A70 and A40? Isuspect that that honor will fall more to the PowerShot A80, but the A75 hasplenty going for it, regardless.
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Camera Overview
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With a compact body similar in design to previous PowerShot 'A' models,the Canon PowerShot A75 updates the A-series with a wide range improvements,from a new DIGIC processor to a larger LCD. A 3.2-megapixel CCD delivers high-resolutionimages suitable for printing as large as 8x10 inches with good detail. (Lowerresolutions are also available, including an email-friendly size, and a specialPostcard mode that allows date stamp.) The A75's all-plastic, two-toned silverbody is lightweight and compact, although just a little too large for the averageshirt pocket. Still, the A75 should easily fit into larger coat pockets andpurses, and comes with a wrist strap for more security. Like many Canon digicams,the A75 features a shutter-like lens cover and a retracting lens that keepsthe camera front fairly smooth when the camera is powered off. Without a lenscap to keep track of, the A75 is quick on the draw (you just have to wait acouple of seconds for the lens to extend forward before you can shoot).
Equipped with a 5.4-16.2mm lens, the A75 offers a 3x optical zoom range equivalentto a 35-105mm lens on a 35mm camera. Widest aperture ranges from f/2.8 to f/4.8depending on the zoom setting, and can be manually or automatically adjustedup to f/8.0. The A75 uses Canon's Wide Area AiAF (Artificial Intelligence AutoFocus) system, which works in conjunction with iSAPS (Intelligent Scene Analysisbased on Photographic Space) technology to judge focus based on an expandednine-point area covering 60% of the frame's center. Whatever portion of thesubject is closest to one of the AF points is what determines the overall focus.You can alternately choose to base focus on the center of the frame only. TheA75 also offers a manual focus mode, displaying a numeric distance scale onthe LCD display. An AF Assist light on the front panel helps the camera focusin dark shooting conditions, and can be deactivated if necessary. In additionto the optical zoom, the A75 also offers as much as 3.2x digital zoom. However,I always remind readers that digital zoom decreases the overall image qualityin direct proportion to the magnification achieved, because it simply enlargesthe center pixels of the CCD image. The A75 has both a real-image optical viewfinderand a larger 1.8-inch LCD monitor for composing images. The LCD monitor's informationdisplay includes detailed exposure information, including shutter speed andaperture settings in the manual shooting modes.
The A75 provides a full range of exposure control, from full Manual to fullAuto exposure modes, and more than a handful of preset scene modes as well.The first five exposure modes are accessed by turning the Mode dial on top ofthe camera. Canon divided the dial into three exposure types: Auto, CreativeZone, and Image Zone. Shooting in Auto mode puts the camera in charge of everythingexcept the Flash and Macro modes. Exposure modes in the Creative Zone includeProgram AE (P), Shutter Speed-Priority AE (Tv), Aperture-Priority AE (Av), andManual Exposure (M). Program AE lets the camera choose the aperture and shutterspeed settings, but gives you control over all other exposure options. Apertureand Shutter Speed Priority modes allow you to set one exposure variable (apertureor shutter speed) while the camera chooses the best corresponding variable.Manual mode gives you full control over all exposure options.
Exposure modes in the Image Zone include Portrait, Landscape, Night Scene,Fast Shutter, Slow Shutter, Scene (SCN), Stitch Assist, and Movie. Portrait,Night Scene, and Landscape all make automatic camera adjustments to optimizesettings for specific shooting conditions. The Portrait mode uses a large aperturesetting to focus on the subject, while maintaining an out-of-focus background.Landscape mode slows the shutter speed and maximizes depth of field with a smallaperture setting. Night Scene mode illuminates your subject with flash and usesa slow shutter speed to evenly expose the background. Fast Shutter mode usesa fast shutter speed to freeze action, while Slow Shutter mode uses a slowershutter speed to blur moving objects (such as waterfalls or fountains). Thenew Scene (SCN) mode allows access to Foliage, which enhances green and red;Snow, which helps bias exposure for bright snow; Beach, which does the samething for sandy backgrounds; Fireworks, whose use needs no explanation; Underwater,which adjusts settings for use with the optional WP-DC30 Waterproof Case; andIndoor, which seeks to prevent camera shake and maintain colors when used underfluorescent and tungsten lighting. The Stitch-Assist mode is Canon's answerto panorama shooting, in which multiple, overlapping images can be capturedhorizontally, vertically, or in a clockwise grouping. Images are then 'stitched'together on a computer using Canon's bundled PhotoStitch software or other imageediting software. Movie mode allows you to capture up to three minutes of movingimages and sound at approximately 15 frames per second, with available resolutionsof 640 x 480, 320 x 240, or 160 x 120 pixels.
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The White Balance setting adjusts color balance, with settings for Auto, Daylight,Cloudy, Incandescent, Fluorescent, and Fluorescent H (for daylight fluorescentlighting). There's also a Custom setting to manually set color balance basedon a white or gray card. Exposure Compensation increases or decreases the overallexposure, from -2 to +2 exposure equivalents (EV) in one-third-step increments.An ISO adjustment offers 50, 100, 200, and 400 ISO equivalents, as well as anAuto setting. By default, the A75 uses an Evaluative metering mode, which linksthe metering area to the focus area (when AiAF is activated). Also availableis a Spot Metering option, which bases the exposure on the center of the subject,and Center-Weighted, for a larger area in the center of the frame. The A75'sflash operates in either Auto, Forced, Suppressed, or Slow Synchro (in NightPortrait only) modes, with an available Red-Eye Reduction setting through theRecord menu.
A creative and fun Effects menu lets you play around with image color, offeringVivid and Neutral color settings, as well as Sepia and Black and White options.A Low Sharpening option softens the image, and is good for enthusiasts who wantto manipulate images on the computer, applying sharpening in their imaging software.Continuous Shooting mode works like a motor drive on a 35mm camera, capturinga rapid burst of images for as long as the Shutter button is held down (or untilthe memory card runs out of space). Actual frame rates will vary depending onthe image size and quality selected. The A75 also features a 10-second self-timer,which delays the shutter for about 10 seconds after the Shutter button is pressed,letting you run around and jump into the shot. (You can also set the delay intervalto two seconds, as an anti-shake aid when you've propped the camera to takea photo in low light.) The A75 also features the My Camera menu, which letsyou customize camera settings to your own preferences. For example, you canset the image that appears at startup, or assign a fun sound to button and self-timerfunctions.
The PowerShot A75 stores images on CompactFlash memory cards, and comes witha 32MB starter card. This is an improvement over the 16MB card included withthe A70, but I still highly recommend purchasing a larger-capacity CompactFlashcard right away, given the A75's maximum 2,048 x 1,536-pixel resolution. Thecamera uses four AA-sized batteries for power, either alkaline or NiMH type.Four alkaline batteries come with the camera and battery life is generally excellent,but I still strongly advise picking up a couple of sets of rechargeable batteriesand a charger, and keeping a spare set freshly charged at all times. Click hereto read my 'battery shootout' page to see which batteries currentlyon the market are best, or herefor my review of the Maha C-204F charger, my longtime favorite. The optionalAC adapter is useful for preserving battery power when reviewing and downloadingimages, and plugs straight into a DC-in jack on the back of the camera, butgood-quality rechargeable batteries really eliminate the need for it. The A75features a USB jack for quickly (570 KB/second) downloading images to a computer,and comes with two software CDs, one loaded with Canon Digital Camera SolutionDisk version 16.1 and the other loaded with ArcSoft Camera Suite version 1.3(compatible with Macintosh and Windows systems). Additionally, an AV Out jackand the included video cable lets you connect the camera to a television set.The A75 is DPOF (Digital Print Order Format) and PictBridge compatible, witha range of print settings available through the Playback menu. Plug the camerainto a PictBridge-compatible printer and the new Print/Share button lights upwith a bright blue glow. Just press it and the currently displayed picture beginsto print.
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Basic Features
- 3.2-megapixel CCD delivering image resolutions as large as 2,048 x 1,536pixels.
- 1.8-inch color LCD monitor.
- Real-image optical viewfinder.
- Glass, 3x 5.4-16.2mm lens (equivalent to 35-105mm zoom on a 35mm camera).
- 3.2x digital zoom.
- Nine-point AiAF iSAPS autofocus and a manual focus mode.
- AF Assist light for low-light focusing.
- Full Automatic, Program AE, Shutter Priority, Aperture Priority, and Manualexposure modes, as well as five preset exposure modes and six Scene modes.
- Manually adjustable aperture setting ranging from f/2.8 to f/8.0, dependingon lens zoom position.
- Shutter speed range from 1/2,000 to 15 seconds.
- Built-in flash with five operating modes.
- CompactFlash memory storage.
- Power supplied by four AA batteries or optional AC adapter.
Special Features
- Movie mode (with sound).
- Sound caption recording.
- Stitch-Assist mode for panoramic shots.
- Continuous Shooting and 10-second Self-Timer modes.
- Creative Effects menu.
- White balance (color) adjustment with seven modes.
- ISO adjustment with four ISO equivalents and an Auto setting.
- Low Sharpness setting.
- Postcard mode.
- Evaluative, Center-Weighted, and Spot metering options.
- DPOF (Digital Print Order Format) compatibility.
- Works with optional accessory lenses for enhanced wide angle and telephoto.
- USB cable for connection to a computer (driver software included).
Recommendation
With a complete range of auto and manual exposure controls, the A75 is perfectfor novice users and experienced amateurs alike. The full automatic controlskeep things simple for novices, while offering the opportunity to graduallystep up to more control. Plus, the range of preset exposure modes and advancedautofocus ensures that less-experienced photographers will get good picturesin difficult shooting situations. The 3.2-megapixel CCD captures good qualityimages, quite suitable for printing as large as 8x10-inches with good detail.The compact design should fit well into a larger coat pocket or purse, and thelens design protects it when closed, while keeping the camera body smooth andlow-profile. In addition to the range of exposure controls, a menu of creativeeffects makes the A75 fun too. The A75 is unusual, in that it's marketed andpriced as an 'entry level' camera, but its features and capabilitiesextend far beyond that category. If you're looking for an inexpensive camerathat you can grow with (and that shoots excellent photos), the A75 could bethe camera for you.
Design
TheA75's compact body has a solid feel, thanks to a combination of plastic bodywith a metallic sheen. Measuring 4.0 x 2.5 x 1.2 inches (101 x 64 x 32 millimeters),the A75 probably won't fit into your shirt pocket. It will, however, find itsway into larger coat pockets, purses, and hip packs, good for travel. The A75has a modest heft, with its 11.6-ounce (327-gram)weight, with batteries and CompactFlash card, but isn't at all uncomfortableto carry. The photo above right shows the A75 posed with a CompactFlash memorycard in front of it to give an idea of its relative size: A comfortable handfuleven for people with small hands, yet not so tiny that it'd be awkward for userswith larger hands to operate. The two-toned silver body is sleek and understated,yet sophisticated enough for any age group.
The A75's front panel features the telescoping 3x zoom lens, which comes outan additional 3/4-inch when fully extended. Alsoon the front panel are the optical viewfinder window, small microphone, flash,and a light emitter lamp that serves multiple purposes, including autofocusassist, red-eye reduction, and the self-timer countdown. On the lower rightside of the lens (as viewed from the rear) is a small button that releases thering around the lens barrel. Removing the ring allows you to attach a lens adapterfor extended telephoto, wide angle, or macro capabilities. There's also a largehand grip on the front panel, created by the large battery compartment.
On the right side of the camera (as viewed from the rear) is the CompactFlashcard slot, covered by a hinged, plastic door. The door slides toward the backpanel before opening outward. At the top of the right side is the plastic eyeletfor attaching the wrist strap.
On the opposite side of the camera is the connector compartment, covered bya flexible, rubbery-plastic flap that snaps in and out of place. When opened,the flap remains connected to the camera body, and folds out of the way to accommodatecables. Inside the compartment are the USB and A/V Out jacks.
The A75's top panel features a Mode dial, with 13 shooting positions dividedinto three basic categories: Auto Exposure, Image Zone, and Creative Zone. TheShutter button is located forward and to the right of the Mode dial, with aZoom toggle surrounding it. Behind the Shutter button and Zoom lever is thecamera's speaker. A Power button and light is on the other side of the Modedial.
The rest of the exposure controls are located on the camera's back panel, alongwith the optical viewfinder and LCD monitor. The look of quality is improvedoverall by the larger 1.8 inch LCD and new 5-way navigation pad. The eye-leveloptical viewfinder features two LED lamps that report camera status. A Modeswitch puts the camera into Playback or Record modes, and is adjacent to thetop right corner of the LCD monitor. Below the Mode switch is 5-way navigationpad; 5-way because the Set button is in the middle of the four-way disk. Thetop button also controls flash mode, while the bottom button accesses Macroand Manual Focus modes. Just left of the 5-way navigator are the Menu and Functionbuttons. Below the LCD display are the Print/Share and Display buttons. Whenconnected to a PictBridge printer, the Print/Share button lights up with a brightblue LED, leaving no question about which button to press next to print yourpictures.
The A75's bottom panel is reasonably flat, with a sliding door to access thebattery compartment and a threaded plastic tripod mount at about center. Becausethe battery door and tripod mount are so close to one another, it would be difficultto make quick battery changes while working with a tripod, something I alwayslook at, given the amount of test shooting I do in the studio. On the otherhand, Canon's AC adapter plugs into the back of the camera, so for studio use,there's a convenient way to get power to the camera while it's on a tripod.(In truth though, few purchasers of the A75 are likely to be concerned aboutstudio usage.)
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Camera Operation
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While the A75's user interface is quite efficient. Most camera functions arecontrolled externally, and a few of the external control buttons serve multiplefunctions. When you do need to enter the LCD menu system, navigation is straightforwardwith only two pages of options. That said, the majority of external controlsdo require the LCD display to be active to confirm whether they are on or off.Regardless, the A75's external controls cut down on the amount of time spentsearching menu screens, and I particularly like the 'Function' menuwhich has become standard on Canon digicam models starting in the 2003 modelyear. Combined with the instruction manual, the A75's user interface shouldn'ttake more than an hour to get comfortable with.
Record Mode LCD Display: In Record mode, the A75's LCD reports variousexposure settings, including camera modes, the resolution and quality settings,number of available images, etc. Half-pressing the Shutter button reports theaperture and shutter speed settings, in all modes except Manual. Pressing theDisplay button cycles through the available display modes, including the imagewith information, no display at all, and the image only.
Playback Mode LCD Display: In Playback mode, the LCD reports the imageseries number, resolution and quality setting, file name, and the date and timeof image capture. Pressing the Display button once pulls up an enhanced informationdisplay, with a histogram for checking the exposure. A third press cancels theinformation overlay entirely. Pressing the zoom lever toward the wide-angleend zooms out to a thumbnail view of images stored on the card. Pressing itin the wide-angle direction again brings up a 'jump' bar at the bottomof the screen, and the camera lets you jump through stored images nine at atime. Pressing the zoom control in the telephoto direction zooms in as muchas 10x on the subject, handy for checking image details and focus.
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Shutter Button: Resting in the center of the Zoom lever, this button setsfocus and exposure when halfway pressed, and fires the shutter when fully pressed.
Zoom Lever: Surrounding the Shutter button on the top panel, this levercontrols the optical and digital zoom while in Record mode. Ghetto stories the movie download.
In Playback mode, the wide side displays a nine-image index display of allimages on the memory card, and accesses a 'Jump' function that letsyou scroll through index display screens quickly. Alternatively, the telephotoposition enlarges the currently displayed image as much as 10x, so that youcan check on fine details.
Mode Dial: Also on the camera's top panel, this large, notched dial is usedto select the camera's shooting modes. Canon divides these functions into threecategories: Auto, Image Zone, and Creative Zone. The options are as follows:
- Auto:The camera controls everything about the exposure, except for Flash and Macromodes, image size and quality settings.
- Creative Zone
- ProgramAE (P): Places the camera in control of shutter speed and lens aperture,while you maintain control over everything else (i.e., white balance,ISO, metering, exposure compensation, flash, etc.).
- Shutter-SpeedPriority AE (Tv): Allows you to control the shutter speed settingsfrom 1/2,000 to 15 seconds, while the camera controls the aperture. Allother exposure settings are available.
- AperturePriority AE (Av): Allows you to set the lens aperture from f/2.8 tof/8.0, while the camera controls the shutter speed. The maximum aperturedepends on the zoom setting, ranging from f/2.8 at the wide angle endto f/4.8 at the telephoto position. In this mode, you maintain controlover all other exposure variables.
- Manual(M): Provides complete control over all exposure settings, includingshutter speed and lens aperture.
- Image Zone
- Portrait:Uses a large aperture setting to blur the background while keeping theprimary subject in sharp focus.
- Landscape:Employs a small aperture setting to keep both the background and foregroundin focus. (May use a slower shutter speed, so a tripod is recommended.)
- NightScene: Uses slower shutter speeds and flash to even out nighttimeexposures. The slow shutter speed allows more ambient light to be recordedin the low-light areas, while the flash freezes the subject. The Red-EyeReduction mode can be used with this exposure mode to eliminate Red-Eyein night portraits.
- FastShutter: Uses fast shutter speeds to stop action and maintain sharpfocus on moving subjects.
- SlowShutter: Uses slow shutter speeds to blur fast-moving subjects.
- Special Scene: Choose from Foliage, Snow, Beach, Fireworks, Underwater,and Indoor modes.
- Stitch-Assist:Allows you to record a series of images, either horizontally, or vertically,to be 'stitched' together into one panorama on a computer.
- Movie:Records as long as three minutes of moving images with sound, at approximately15 frames per second.
Power Button: To the left of the Mode dial, this button turns thecamera on or off.
Mode Switch: Adjacent to the top right corner of the LCD monitoron the rear panel, this switch selects between Record and Playback modes.
Five-Button Function Pad: These five buttons are arranged in adisk pattern on the rear panel, right of the LCD monitor. They serve as theleft, right, up, and down arrow keys to navigate through settings menus, andthe center button is the Set button, better-placed in our opinion. In Recordmode, the left and right buttons adjust available exposure settings, as wellas manual focus, when enabled. The top button controls flash mode, while thebottom button accesses Macro and Manual Focus modes.
In Playback mode, the left and right buttons scroll through captured images.When an image has been enlarged, all four arrows pan within the view.
Print/Share button: Glows blue when enabled for printing to a PictBridgeprinter or Windows computer for uploading images.
Function / Erase Button: On the lower right corner of the LCD monitor, thisbutton displays the following Function menu while in Record mode:
- Exposure Compensation: Increases or decreases the exposurefrom -2 to +2 exposure equivalents (EV) in one-third-step increments. Notavailable in Manual mode, since the user controls the exposure variables directlythere.
- Flash Output: (Manual mode only, takes the place of theExposure Compensation option): Adjusts the overall flash intensity from Lowto Full, in Manual mode only. In Manual mode, the flash fires only a singlepulse, handy when you want to use the A75 with conventional 'slave'triggers for external flash units.
- White Balance: Controls the color balance of images. Optionsare Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, and Custom(manual setting).
- Drive Mode: Accesses Continuous Shooting and the two Self-Timermodes (a 2 or 10 second delay).
- ISO Speed: Sets the camera's sensitivity to Auto (exceptin Manual), or to 50, 100, 200, or 400 ISO equivalents.
- Photo Effect: Enables Vivid Color, Neutral Color, Low Sharpening,Sepia, or Black-and-White picture effects.
- Light Metering System: Sets the metering mode to Evaluative,Center-Weighted, or Spot.
- Resolution: Specifies the image resolution and qualitysettings. Still image resolutions are 2,048 x 1,536; 1,600 x 1,200; 1,024x 768; and 640 x 480 pixels. The new Postcard mode defaults to 1,600 x 1,200for fine 4x6 printing, with the option of date printing on the photo. Qualityoptions (activated by pressing the Set button) are Superfine, Fine, and Normal.Movie resolutions are 640 x 480, 320 x 240, and 160 x 120 pixels.
In Playback mode, this button displays the single-image erase menu.
Display Button: Below the LCD, this button controls the information andimage display modes in Record and Playback modes. Playback includes a histogramview.
Menu Button: Right of the LCD and above the Function button, this buttoncalls up the settings menu in Record and Playback modes. It also dismisses themenu screen and backs out of menu selections.
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Set Button: Now part of the 5-way navigator right of the LCD monitor, thisbutton confirms menu selections. It also switches between available exposureadjustments in Manual mode.
Battery Compartment Latch: Nestled in the center of the battery compartmentdoor on the bottom of the camera, this sliding switch unlocks the door, so thatit can slide forward and open.
Lens Ring Release Button: Tucked under the lens on the camera's front panel,this button releases the lens ring. Once unlocked, the lens ring can then beturned and removed to accommodate accessory lens kits.
Camera Modes and Menus
Record Mode: Marked on the Mode switch with the red cameraicon, this mode sets up the camera for capturing still and moving images. Thefollowing exposure modes are available:
- Manual(M): Provides complete control over all exposure settings, including shutterspeed and lens aperture.
- Shutter-SpeedPriority AE (Tv): Allows you to control the shutter speed settings from1/2,000 to 15 seconds, while the camera controls the aperture. All other exposuresettings are available.
- AperturePriority AE (Av): Allows you to set the lens aperture from f/2.8 to f/8.0(depending on the zoom setting), while the camera controls the shutter speed.In this mode, you maintain control over all other exposure variables.
- ProgramAE (P): Places the camera in control of shutter speed and lens aperture,while you maintain control over everything else (i.e., white balance, ISO,metering, exposure compensation, flash, etc.).
- Auto:The camera controls everything about the exposure, except for Flash and Macromodes, and image size and quality settings.
- Portrait:Uses a large aperture setting to blur the background and keep the primarysubject in sharp focus.
- Landscape:Employs a small aperture setting to keep both the background and foregroundin focus.
- NightScene: Uses slower shutter speeds and flash to even out nighttime exposures.The slow shutter speed allows more ambient light to be recorded in the low-lightareas, while the flash fully exposes the subject.
- FastShutter: Uses fast shutter speeds to stop action and maintain sharp focuson moving subjects.
- SlowShutter: Uses slow shutter speeds to blur fast-moving subjects.
- SpecialScene: Choose from Foliage, Snow, Beach, Fireworks, Underwater, and Indoormodes.
- Stitch-Assist:Allows you to record a series of images, either horizontally, vertically,or in a clockwise, 360-degree pattern, to be 'stitched' togetherinto one large image or panorama on a computer.
- Movie:Records as long as three minutes of moving images with sound, at approximately15 frames per second.
Record Menu: Pressing the Menu button in Record mode pulls up the followingoptions (not all options are available in all modes):
- AiAF:Turns the AiAF system on or off. If on, the camera judges focus based on thesubject's proximity to five focus areas in the center of the image. If off,the camera bases focus on the very center of the frame.
- Red-Eye Reduction: Turns the Red-Eye Reduction pre-flashon or off, which works with all flash modes.
- AF Assist Beam: Turns the AF Assist light on or off. If on, the lightautomatically illuminates in dark shooting conditions.
- Digital Zoom: Turns the 3.2x digital zoom on or off.
- Review: Turns the instant image review function on or off, with availableimage display times from two to 10 seconds.
- Date Stamp: Turns on and switches between Date and Date/Time stamp,only available in Postcard mode.
Playback Mode: This mode lets you review captured images and movieson the memory card, as well as erase them, protect them, or tag them for printingand transfer. The traditional green Playback symbol denotes this mode on theMode switch. Pressing the Menu button displays the following options:
- Protect:Marks the current image for write-protection, or removes write-protection.Protected images cannot be deleted or manipulated, except through card formatting,which erases all files.
- Rotate: Rotates the current image 90 degrees clockwise.
- Sound Memo: Records a short sound clip to accompany a capturedimage.
- Erase All: Erases all files on the memory card, except protectedones.
- Auto Play: Automatically plays all captured images in a slide show.
- Print Order: Determines how many copies of the current image willbe printed, with options for creating an index print, imprinting the dateand time, and imprinting the file number. (secondary screen)
- Transfer Order: Marks images to be transferred via email.
Setup Menu: This menu is available in all exposure modes, simply bypressing the Menu button and selecting the Setup tab.
- Mute:Turns the camera's beep sounds on and off.
- Volume: Individually sets Startup, Operation, Self Timer, Shutter,and Playback volumes. (secondary screen)
- Power Saving: Toggles the camera's automatic shutoff function, whichturns off the camera after a length of inactivity. Also sets display shutdowntime between 10 seconds and 3 minutes. (secondaryscreen)
- Date/Time: Sets the camera's internal calendar and clock. (secondaryscreen)
- Format: Formats the CompactFlash card, erasing all files (even thosemarked for write-protection). (secondary screen)
- File No. Reset: Resets file numbering with each new CompactFlashcard. If disabled, the camera continues numbering in sequence, regardlessof memory card.
- Auto Rotate: Toggles Auto Rotate feature on and off.
- Distance Units: Sets the manual focus indicator to Meters/Centimetersor Feet/Inches.
- Language: Sets the camera's menu language to one of 12 choices. Englishis the default setting. (secondary screen)
- Video System: Designates the camera's video-out signal as NTSC orPAL.
My Camera Menu: This is the third menu tab on the menu screen,and appears in every mode.
- Theme:Selects a common theme for each My Camera menu settings item. Four optionsare available, the first one being Off. When a theme is selected, all of thefollowing settings automatically adjust to that theme.
- Startup Image: Sets the startup image when you turn on the camerato: Black screen, Canon logo, Canon logo w / sunset, and nature scene. Youcan also apply your own image using the Canon software.
- Startup Sound: Sets the startup sound when you turn on the camerato: No sound, Musical tone (1), Musical tone (2), or Birds chirping. You canalso apply your own sounds using the Canon software.
- Operation Sound: Sets the sound when any control or switch is use(except the Shutter button). Options include Beep, Loud beep, Boing, and Chirp.
- Self-Timer Sound: Sets the sound that signals you when the shutterrelease is two seconds away. Options include Fast beeps (1), Fast beeps (2),Telephone ring, and Howling.
- Shutter Sound: Sets the shutter sound that you hear when you depressthe Shutter button (there is no shutter sound in Movie mode). Options includeBeep, Shutter sound, Boing, and Bark.
In the Box
The PowerShot A75 arrives with the following items:
- Wrist strap.
- Four AA-type alkaline batteries.
- USB cable.
- AV cable.
- 32MB CompactFlash card.
- Two software CDs.
- Instruction manual, software guide, and registration kit.
Recommended Accessories
- Rechargeable batteries and charger.
- AC adapter kit.
- Soft case.
- Lens accessory kits.
Recommended Software: Rescue your images!
Just as important as an extra memory card is a tool to rescue your images whenone of your cards fails at some point in the future. I get a lot of email fromreaders who've lost photos due to a corrupted memory card. Memory card corruptioncan happen with any card type and any camera manufacturer, nobody's immune.A surprising number of 'lost' images can be recovered with an inexpensive,easy to use piece of software though. Given the amount of email I've gottenon the topic, I now include this paragraph in all my digicam reviews. The programyou need is called PhotoRescue, by DataRescue SA. Read our reviewof it if you'd like, but download the program now, so you'll have it.It doesn't cost a penny until you need it, and even then it's only $29, witha money back guarantee. So download PhotoRescuefor Windows or PhotoRescuefor Mac while you're thinking of it. (While you're at it, download thePDF manual and quickstart guide as well.) Stash the file in a safe place andit'll be there when you need it. Trust me, needing this is not a matter of if,but when.. PhotoRescue is about the best and easiest tool for recoveringdigital photos I've seen. (Disclosure: IR gets a small commission from salesof the product, but I'd highly recommend the program even if we didn't.)OK, now back to our regularly scheduled review..
Specifications
See camera specifications here.
Picky Details
Cycle times, shutter lag, battery life, etc. can be found here.
User Reviews
- Canon PowerShot A75 user reviews on PriceGrabber.com
- Canon PowerShot A75 user review on PC PhotoREVIEW
Test Images
See the full set of my sample pictures anddetailed analysis here.The thumbnails below show a subset of my test images. Click on a thumbnail tosee the full-size photo.
Test Results
In keeping with my standard test policy, the comments given here summarizeonly my key findings. For a full commentary on eachof the test images, see the PowerShot A75's 'pictures' page.
Not sure which camera to buy? Let your eyes be the ultimate judge! Visit ourComparometer(tm) to compare images from the PowerShot A75 with those from other cameras you may be considering. The proof is in the pictures, so let your own eyes decide which you like best!
As with all Imaging Resource product tests, I encourage you to let your owneyes be the judge of how well the camera performed. Explore the images on thepictures page, to see how A75's images compare to other cameras you maybe considering.
Canon Digital Camera Solution Software
- Color: Very good to excellent color. The A75 deliveredvery good to excellent color throughout my testing, although its Automaticwhite balance setting had a tendency to produce a slightly warm color balance,often with a reddish tint. The Daylight setting often produced similar results,while the Manual option was typically cooler and more accurate. Skin tonesoutdoors were a little more pinkish than I'd prefer, but well within acceptablelimits. Apart from the slight warm cast, color was generally hue-accurate,with appropriate saturation. The camera handled the tough incandescent lightingof the Indoor Portrait (without flash) test very well in Incandescent andManual white balance modes, although the Auto setting had trouble. Overall,typically good 'Canon color,' although I feel that the A80does a slightly better job.
- Exposure: Average to better than average exposure accuracy.The A75's metering system did pretty well throughoutmy testing. Outdoors, under the high-key lighting, the camera respondedwith high contrast, but required a lower than average amount of positive exposurecompensation to get good-looking midtones. The camera'sslightly high native contrast limited its dynamic range a bit, but the A75did a pretty good job with exposure overall.
- Resolution/Sharpness: Average to better than averageresolution for a 3 megapixel camera. The A75 turned in about an averageperformance on the 'laboratory' resolution test chart for its 3-megapixelclass, but its results were a little hard to interpret. On the laboratoryresolution target, it actually didn't do quite as well as last year's A70model. It started showing artifacts in the test patterns at resolutions aslow as 600 lines per picture height, in both horizontal and vertical directions,and they became quite strong by the 1,000 line point. While there was somedetail present out to 1,100 lines (the rating I gave the A70 last year), Ifelt that I could only justify a rating of 1,000 lines, given the artifactsbeyond that level. 'Extinction' of the target patterns occurredaround 1,300 lines. In contrast to the 'laboratory' result though,outdoor shots at greater distances were quite sharp. (Perhaps the lens isa bit better suited to distant subjects than close-by ones?)
- Closeups: A nice small macro area with good detail.The A75 performed about average in the macro category, capturing a minimumarea of 2.59 x 1.95 inches (66 x 49 millimeters). Resolution is high, withgood detail in the coins, dollar bill, and brooch. The A75's flash had troublethrottling down for the macro area, and overexposed the shot. (Plan on usingexternal lighting for your closest macro shots.)
- Night Shots: Good low-light performance, with good coloreven at the darkest light levels. An autofocus illuminator lets the camerafocus in complete darkness, but only on nearby objects. The A75 producedclear, bright, usable images down to the 1/16 foot-candle (0.67 lux) limitof my test, at the 100, 200, and 400 ISO settings. At ISO 50, images werebright as low as 1/8 foot-candle (1.3 lux), though you could still see a fairamount of detail even at the 1/16 foot-candle light level. The A75's autofocusilluminator lets it focus even in complete darkness, but its range is limitedto a few feet when there's no other light available. In less than completedarkness, the camera's focusing range is proportionately higher. Color wasgood and accurate throughout the series as well. Image noise was low throughoutthe ISO 50 and 100 series, and only moderate at ISO 200. However, at ISO 400,image noise was quite high. A very good performance overall though, particularlyfor an entry-level camera.
- Viewfinder Accuracy: Excellent accuracy from the LCDmonitor, but a very tight optical viewfinder. The A75's optical viewfinderis very tight, showing only about 75 percent frame accuracy at wide angle,and about 77 percent at telephoto. The LCD monitor proved much more accurate,showing about 99+ percent accuracy at both lens settings. Given that I likeLCD monitors to be as close to 100 percent accuracy as possible, the A75'sLCD monitor is essentially perfect in that regard, but the optical viewfindercould really use some help.
- Optical Distortion: Slightly better than average distortionat wide angle, slightly worse than average (but very low) at telephoto.Optical distortion on the A75 was slightly better than average at the wide-angleend, where I measured approximately 0.7 percent barrel distortion. The telephotoend fared quite a bit better, as I measured 0.2 percent barrel distortionthere. Chromatic aberration is pretty good, as there was only fairly faintcoloration surrounding the target lines in the corners. (This distortion isvisible as a very slight colored fringe around the objects at the edges ofthe field of view on the resolution target.) The image was also reasonablysharp across the frame, with only slight softness in some of the corners,not extending very far into the image.
- Shutter Lag and Cycle Time:Full-autofocus shutter lag on theslow side of average, but very fast prefocus lag, and good shot to shot speed.With a shutter delay ranging from 0.9-1.2 seconds in full autofocus mode,the A75 is on the slow side of average in that parameter. (Average is 0.8-1.0seconds, still too slow in my opinion.) Its shutter response is positivelyblazing though when it's prefocused by half-pressing and holding down theshutter button before the exposure itself. Its shot to shot speed is prettygood for an entry-level camera, at 1.78 seconds for five shots in single-shotmode.
- Battery Life: Excellent battery life. The A75 displayedexcellent battery life, with a worst-case run time of three and a half hours,with 1600 mAh capacity cells. (Expect correspondingly better run times withmodern, higher-capacity batteries.) Battery life was an astonishing 16 hourswhen the LCD was left off in capture mode. Regardlessof the A75's long battery life though, I still strongly recommend that youpurchase several sets of high-capacity NiMH AA cells and a good charger togo along with them. To see which NiMH cells are best, see my batteryshootout page. Read myreview of the Maha C-204F charger, to learn why it's my longtime favorite.
Canon Digital Camera Solution
Conclusion
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