Record mode display

Here we can see an example of the default live display view in Program Auto Exposure mode, the center brackets indicate the auto focus target area. Information overlaid in this case:

Metered exposure: F4.8, 1/25 sec, +0.5 EV compensation. Flash cancel. Single shot drive mode. Macro focus. Cloudy white balance. Empty buffer (grey bar). 113 frames remaining. 2272 x 1704 HQ image size / quality.

Here we're already half-pressed the shutter release and are ready to shoot. It's a bit deceiving because nothing changes on screen other than the removal of some of the camera settings icons. What you can't see is that there is a steady green light next to the viewfinder to indicate a good AF lock. It would have been nice to repeat this colour on screen (either a green dot or turn the AF brackets green). After shooting a preview is displayed briefly. The green dot in the grey bar at the side of the screen indicates the amount of information in the cameras internal buffer. This provides you with an immediate visual impression of how much shooting 'space' is available and how many more shots you would be able to take before waiting for images to be fully flushed to the SmartMedia card.
An example of one of the manual modes (A/S/M), in this case aperture priority with an aperture of F5.6 selected. The camera automatically updates the shutter speed to match its metered exposure value. An example of the new 'My Mode', it allows you to predefine a set of camera setting defaults (including zoom position, even focus point) which are engaged as soon as you switch to the My Mode position on the mode dial.

Manual Focus

Press and hold the OK button and the camera will allow you to switch from AF focus to MF (manual) focus. A self-scaling ruler is displayed on the right edge of the screen. Pressing the up or down arrows on the 4-way controller allows you to set the manual focus distance, while you do so the ruler updates and the center of the frame is magnified 200% to assist in selecting the correct focus point.

Play display

The C-40Z has a 'shooting priority' play mode, this means that you enter play mode directly from record mode by double-pressing the display button (it isn't a position on the mode dial). Once in play mode a half-press of the shutter release will always return you to shooting mode. I'm a big fan of this type of play mode (it's just like a D-SLR) and so hats off to Olympus for including it here.

Switching to play mode displays the last image taken. Unlike some other digital cameras (but like all other Olympus digital cameras) the C-40Z doesn't use a 'rough thumbnail' to display the image, instead you must wait for the image to be loaded from the SmartMedia card. Luckily this only takes a second or two. Enter the Play menu and select INFO and displayed images are now overlaid with a variety of camera setting and exposure information. This information overlay disappears after 5 seconds. Note that the C-40Z does not have a histogram display mode.
Press the erase (flash) button and you are required to confirm the removal of the image with this overlaid prompt.  

Turn the zoom controller towards telephoto to magnify the displayed image, there are six magnification levels: 1.5x, 2.0x, 2.5x, 3.0x, 3.5x, 4.0x. At any magnification level you can scroll around the image using the 4-way controller. Turn the zoom controller toward wide angle to switch to thumbnail index view. Via the record menu you can choose a 2 x 2, 3 x 3 or 4 x 4 index. Us
By pressing the macro button you can also rotate images through 90 degrees. This doesn't actually rotate the JPEG file, but simply places an orientation flag in the file header.