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Sony A900 Operation

Sony A900 Top Panel Status LCD

The Alpha A900 is the first Sony SLR with a top panel status LCD. This rather small, monochrome LCD displays basic status information such as the current Shutter Speed, Aperture, Exposure Compensation, Battery Status, etc. We like these displays as they give a quick overview of the camera's settings without having to refer to the larger, more power-hungry main LCD when trying to conserve battery life. They also come in handy while adjusting settings when the camera is below eye-level, such as on a tripod. See the illustration below for details on the information displayed.

Sony A900 Top Panel LCD Display Info
Shutter Speed Aperture Exposure Compensation White Balance ISO (Sensitivity) Drive Mode	Battery Remaining Remaining Number of Recordable Images

Sony A900 Record Mode Displays

The Sony A900's rear-panel, 3.0-inch, 921,600 pixel TFT color LCD monitor is for image review, status display, and menu display. Unlike the A300 and A350, the Alpha A900 doesn't offer any form of live view mode, so the LCD can't be used to frame shots. We do really like the wealth of camera information that the A900 makes available on its rear screen, especially since the top panel status LCD is so small and basic.

Sony A900 Main LCD Display Screen Info
1 - Shutter Speed 2 - Exposure Mode 3 - Register Number 4 - Exposure Compensation 5 - Flash Mode 6 - Flash Exposure Compensation 7 - Drive Mode 8 - Focus Mode 9 - Creative Style, Image Parameters 10 - Image Quality 11 - Battery Status 12 - Image Size 13 - Operation Guide	14 - Aperture Value 15 - Exposure 16 - AE Lock 17 - EV Scale 18 - ISO (Sensitivity) 19 - AF Area 20 - D-Range Optimizer 21 - Metering Mode 22 - White Balance 23 - Remaining Shots (Buffer Space) 24 - Memory Card

Large- and Small-Type Options
Sometimes you don't need to see every last detail about the camera's operation, but rather prefer to concentrate on just the most important settings. Like other Sony SLRs, the Sony A900 has two different display options, that apply to both the horizontal and vertical formatted data screens. The large-type/low-density option drops the details on Flash mode, Metering mode, AF mode, Card type, Creative Style, and Contrast, Saturation, Sharpness, Brightness and Zone settings.

Sony A900 Intelligent Preview

New for the Alpha 900 is what Sony calls "Intelligent Preview", which simulates the results of changes in settings in real-time, on an pre-capture image that isn't stored on the memory card. It can simulate the effects of white-balance adjustment, exposure, DRO settings, etc. The animation to the right shows the effect on exposure of changing the shutter speed, for example. Some things it can't simulate however is the blurring effect of a slow shutter speed with a moving subject, or the depth-of-field change when adjusting aperture.

Sony A900 Playback Mode Displays

The Playback button on the rear panel accesses Playback mode, where you can review captured images. Pressing the DISP button cycles through displays with information overlay on or off. The Histogram button displays a RGB+L histogram along with recording data and any areas with lost highlights or shadows are illuminated. Pressing the Index button cycles through 25, 9 or 4 frame index views and individual images can be selected using the multi-selector joystick. Images can be zoomed by using the Enlarge button, and magnification can be adjusted up to 19x (depending on image size) using the rear control dial, or a zoom box can be defined using the multi-selector joystick. Enlarged images can also be scrolled in the X or Y direction using the joystick.