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Rear of camera controls

On the rear of the S45 there's a large empty area for the palm of your hand, above this is the multi-controller, a new combined 4-way cursor control and SET button which does seem to be slightly improved since the S40, although I would still prefer a separate SET button. Lastly it's worth noting the sliding 'shooting priority' play mode lever, this is used to switch to play mode from record or off mode (front cover open or not).

Record Mode

Flash Mode

Toggles through the flash modes: Auto Flash, Redeye reduction Auto, Redeye Reduction Fill-in, Fill-in, Forced Off. (The availability of different flash modes varies with the selected exposure mode). Flash mode is displayed on the rear LCD.

Macro Focus

Switches the cameras autofocus system between normal focus range (50 cm +) and macro focus range (10/30 cm - 50 cm).
Enter play mode ('shooting priority' type)

Pushing this lever to the right enters play mode. You can leave play mode by either pressing the lever again or by half-pressing the shutter release.

SET / AF Frame selection

In Auto or Scene record mode pressing SET allows you to choose from AiAF 9 area automatic selection or center point AF area. In a creative record mode (P, Tv, Av, M or C) pressing SET allows you to move the AF area around the frame to any one of 345 positions (a 23 x 15 grid). Press and hold to reset the AF frame to the center area.

FUNC button

The FUNC button displays an overlaid menu which provides access to the most often changed photographic settings. In Auto exposure mode you can only modify Drive Mode and Image Size / Quality, in Scene exposure modes the available settings vary. All settings are available in the creative record exposure modes (P, Tv, Av, M or C). Settings appear in a column down the left side of the display, use the arrow keys to move up and down each option and the left / right arrow keys to change an option the meter button is used occasionally to change sub-options. Click here to view an animation of FUNC settings. Note that the icons used below to represent each setting are the default for that setting and that the icon will change once a setting change is made.

Exp. compen. +/-2 EV in 0.3 EV steps
White balance Auto, Sunny, Cloudy, Incandescent, Fluorescent, Fluorescent High, Flash, Manual 1, Manual 2
Drive mode Single, Continuous, Continuous High, Self-Timer 10 sec, Self-Timer 2 sec
Sensitivity Auto, ISO 50, ISO 100, ISO 200, ISO 400
Photo Effect Off, Vivid, Neutral, Low Sharpening, Sepia, B&W, Custom (Contrast, Sharpness, Saturation)
Bracketing Exposure: 3 frames: 0/+/- 0.3 to 2.0 EV
Focus: 3 frames: +/- 1, 2, 3
Flash output +/-2 EV in 0.3 EV steps
Three levels in manual flash mode
Image size / quality 2272 x 1704, 1600 x 1200, 1024 x 768, 640 x 480,
RAW, Super Fine, Fine, Normal
MF Manual Focus

Hold this button and press and use the up and down arrow keys to focus. There is an automatically scaling ruler readout of distance (in metric or imperial measurement selectable from the menu) as well as a AF point magnified 'loupe' which helps ensure focusing while leaving the rest of the frame visible (this can be disabled if preferred).
Metering

Select a metering mode: Evaluative, Center-weighted Average, Spot
DISPLAY Display Mode

Toggles between three LCD display modes: Image only display, Image and AF frame, Image and AF frame plus detailed exposure information.
MENU Enter / Leave the Record Menu

Pressing this button in record or play mode enters that mode's settings menu (described in detail on the next pages of this review).

Record review mode (during image review after taking a shot)

Erase image

Erases the image, requires confirmation: Erase / Cancel.

Record voice annotation

Allows you to record a voice annotation which will have the same filename as the recorded image, the review image is overlaid with a record bar, this allows you to record a WAVE file of up to 60 seconds.

FUNC button

Pressing the FUNC button during record review provides you with the option to change the current image to RAW format. This means that you can shoot JPEG and if you realize you have a very important shot you can press FUNC and save it as a RAW instead. Very useful, very clever.
SET / Shutter release button

Freezes the image review until the shutter release is half-pressed.

Play Mode

Toggle Thumbnail view

Toggles between display of full screen image or 3 x 3 thumbnails on the LCD screen.
JUMP Jump

Enters a special mode which allows you to jump through playback images by 10 frames forward or backward.
Leave play mode

Return to shooting mode, a shortcut for this is a half-press of the shutter release.
Erase image

Erases the image, requires confirmation: Erase / Cancel.

Record voice annotation

Allows you to record a voice annotation will have the same filename as the image, the review image is overlaid with a record bar, this allows you to record a WAVE file of up to 60 seconds.

DISPLAY Display Mode

Toggles between three LCD display modes: Image only display, Image and brief frame information, Image and detailed exposure information.
Setting / Menu confirm

Used to confirm changed camera settings or options in the camera menus.
MENU Enter / Leave the Play Menu

Pressing this button in record or play mode enters that mode's settings menu (described in detail on the next pages of this review).

Orientation sensor

The S45's orientation sensor indicates the current orientation of the camera with a small icon in the top right of the LCD display (), the arrow above the camera always pointing the upward direction. The camera recognizes left down portrait (counter clockwise), normal landscape (0°) and right down portrait (clockwise). The sensor changes orientation anywhere past the 45° point in either direction.

This orientation is then stored in the header of the image file (EXIF if JPEG), the camera will display images in the correct orientation during playback and in the supplied Canon software. Some third party applications are now starting to recognize the EXIF orientation tag, notably ACDSEE 5.0 which has an 'Auto' option in its lossless rotation dialog, simply select all JPEG images in a folder, choose 'Auto' rotate and the software will losslessly rotate those images which need rotation.

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