Top of camera controls
Camera has complete control over exposure, point-and-shoot operation, the majority of manual features are disabled, you can't alter exposure compensation, ISO or use RAW mode.
|P||Program Auto Exposure
Very similar to AUTO exposure but you have access to all the normal manual controls, can set the ISO, exposure compensation, use AE lock, bracketing etc.
Shutter Priority Auto Exposure
1/1000, 1/800, 1/640, 1/500, 1/400, 1/320, 1/250, 1/200, 1/160, 1/125, 1/100, 1/80, 1/60, 1/50, 1/40, 1/30, 1/25, 1/20, 1/15, 1/13, 1/10, 1/8, 1/6, 1/5, 1/4, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.3, 1.6, 2, 2.5, 3.2, 4, 5, 6, 8 secs
Aperture Priority Auto Exposure
F2.0, F2.2, F2.5, F2.8, F3.2, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0
|M||Full Manual Exposure
In this mode you select the aperture and the shutter speed from any combination of the above. Left and right arrows select shutter speed, up and down arrows select aperture. The LCD view changes to reflect the look of the final image at this exposure. It appears as though the G1's metering system is disabled in this mode as there's no exposure meter as seen on other cameras.
In this mode the focal length is locked to maximum wide angle (you cannot zoom). No auto focus is performed, instead the focus is locked (much like a fixed focus lens camera) which allows very fast (almost lag free) shots to be taken. Useful for situations when you need a fast reaction.
In this mode apertures are kept as large as possible (small F number) to produce a blurred background to help define the subject in a portrait shot.
In this mode the flash is by default disabled (although you can enable it) and focus is locked at infinity. Apertures are kept as small as possible (large F numbers) to produce the largest possible depth of field. Macro focus is also disabled. Designed to be used for taking landscape shots.
Known on other cameras as "Slow Sync Flash". Put simply in this mode slow shutter speeds are used to capture a dimly lit background (buildings at night for example) and the flash fires briefly to illuminate a foreground subject.
|BW||Black & White
Shoots in black & white.
Designed to make shooting of panorama / stitch shots easier. You have a choice of five different stitch modes: left-right, right-left, down-up, up-down or 4-frames in a square. The display changes to show previously shot frames in the sequence to help alignment of each frame. Exposure and White Balance are locked to the first frame.
Shoot short (up to 30 second) movie clips @ 320 x 240. Audio is also recorded.
An excellent range of exposure modes makes the G1 a camera which can be used by the beginner, keen amateur and prosumer alike. A good range of shutter speeds, apertures and ISO's means that you should be able to shoot just about any type of shot in just about any situation.
The F8 situation
Those observant about you did indeed notice Canon's small print on the press release, under Shutter Speeds it said "Aperture value is fixed to F8 if users set the shutter speed from 1/640 to 1/1,000 s in Shutter priority AE mode or Manual mode.". Well, under testing I can confirm it's not possible to use shutter speeds 1/640, 1/800 or 1/1000s with any aperture other than F8. In any mode this exposure limitation seems to stick.
|Auto Exposure||When the shutter speed jumps above 1/500s F8 it will go to 1/640s F8 then 1/800s F8 then 1/1000s F8|
|Shutter Priority||Set the shutter speed to 1/500s and half-press the shutter release the camera will read (say) F3.5, push the shutter speed up to 1/640s and immediately the aperture is locked at F8.0 (which is of course too much and the image will be underexposed)|
|Aperture Priority||Set the aperture to anything less than F8 and the maximum shutter speed available is 1/500s|
|Manual||Shutter speeds greater than 1/500s are not available unless you select F8 as the aperture|
We asked Canon why the F8 limitation and this was their reply (direct from Tokyo):
The PowerShot G1 adopts a single mechanism that serves as both for the iris and the shutter. This mechanism releases the shutter by closing the iris diaphragm completely.
In this mechanism, the iris diaphragm must be closed quickly when releasing the high-speed shutter. The closing speed of the iris diaphragm, however, has a limit to keep the precision and the durability of the mechanism.
Because of the above-written limit of iris diaphragm closing speed, the iris aperture must be closed to some extent to shorten the moving distance of the iris diaphragm, when releasing the high-speed shutter. This is the reason why the aperture value is fixed to F8 when using the high-speed shutter of 1/640 sec. or higher in the PowerShot G1.
Rear of camera controls
On the back of the G1 you'll find the flip-out LCD with a variety of buttons surrounding it. Each of the buttons is described in more detail below:
Toggles through the flash modes: Flash Off, Auto Flash, Flash On with Anti Redeye, Flash On (Fill-in). (The availability of different flash modes varies with the selected exposure mode). Flash mode is displayed on the top LCD and rear LCD (if enabled).
Enables / Disables spot metering. Only available in P, Tv, Av and M exposure modes. When spot metering is enabled the camera meters only from a small rectangle in the center of the frame, this rectangle is shown on the rear LCD (if enabled). Spot metering status is displayed on the top LCD and rear LCD (if enabled).
Switches the cameras autofocus system between normal focus range (70 cm +) and macro focus range (6/20 cm - 60 cm). Available in all exposure modes except Pan-Focus and Landscape.
|Auto Exposure Lock
Takes an exposure reading and locks it for the next shot. Only available in P, Tv and Av exposure modes. Something very unique to the G1, if you have the flash enabled the camera will fire the flash and take a meter reading against the flash output, lock it and use it for the next shot. Once the shot is taken metering is reset.
| Multifunction Button
This button scrolls between four different camera settings:
Use the left / right arrows to select different values.
Toggles between three LCD display modes: No display, Image only display, Image and camera settings display.
|SET||Setting / Menu confirm
Used to confirm changed camera settings or options in the camera menus.
|MENU||Enter / Leave the
There is a "delete before saved" shortcut just like on the S10 / S20, if you're looking at an image review, press SET then * to call up the delete yes/no dialog.
|Toggle Thumbnail view
Toggles between display of full screen image or 3 x 3 thumbnails on the LCD screen.
Zoom the displayed image either 2.5 or 5.0 times, the 4-way controller can be used to scroll smoothly around the zoomed image.
Jump through playback images by 10 frames forward or backward.
Toggles between three LCD display modes: Image only display, Image and brief frame information, Image and detailed exposure information.
|SET||Setting / Menu confirm
Used to confirm changed camera settings or options in the camera menus.
|MENU||Enter / Leave the
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