metering sensor zone areas. Evaluative (set automatically in the Full Auto mode), partial, spot (updated for each shot during continuous shooting) and centerweighted average metering modes are provided. Partial metering reads approximately 8% of the viewfinder area at the center, and spot metering reads approximately 3.5% of the viewfinder area. The basic characteristics of the evaluative metering system and the E-TTL II autoflash metering system have been adjusted to make them just like those in the EOS 20D, which has the same 35-zone metering sensor and One-Shot AF with nine AF points.
The shooting modes are P (programmed AE, shiftable), Tv (shutter-priority AE), Av (aperture-priority AE), M (manual), Bulb, Full Auto (non-shiftable) and C (Camera setting registration, a saved set of custom settings). Basic Zone modes and Depth-of-Field AE are not offered. For flash photography, E-TTL II autoflash and averaged flash exposure (C.Fn-14-1) are both available. Metering begins when the shutter release is pressed halfway. Metering time lasts from approximately four seconds before exposure until approximately 2 seconds after exposure. Multiple exposures are not possible.
Auto Exposure Bracketing can range up to +/- 2 stops in 1/2 or 1/3 stop increments. It can be affected in P (shutter or aperture varied), Tv (aperture varied), Av (shutter varied) or M (shutter varied). It is not settable in the Full Auto mode. The bracketing sequence is: standard exposure, decreased exposure, increased exposure; C.Fn-9 allows changes to this order. AEB can be used in conjunction with the self-timer or WB-BKT (nine images will be generated).
In the One-Shot AF mode with evaluative metering, AE lock takes effect when focus is achieved. Manual AE lock is enabled with the AE lock button (rear, top right). There is no AE lock in Full Auto. During evaluative metering, AE lock is applied to the exposure setting obtained by the selected AF point. During partial, spot or center-weighted average metering, AE lock is applied to the exposure setting obtained by the center point. The same button functions as an FE lock button when an EX-series Speedlite is attached.
DDR SDRAM
Image Recording,
Processing and Protection
Digital control
As with the EOS-1Ds Mark II camera, high-speed and high quality image processing is executed by the DIGIC II Image Processor. The DIGIC II and the DDR SDRAM (rather than the SDR SDRAM in the EOS 20D) buffer memory and 4-channel reading work together to attain a continuous shooting speed of approxi- mately 3 fps and a maximum burst of 60 frames, Large/Fine JPEG, 17 RAW, or 12 RAW+JPEG.
In addition to RAW alone, the EOS 5D camera offers six choices of image recording quality: Large (12.7 megapixels, either Fine/low compression or Normal/high compres- sion), Medium (6.7 megapixels, Fine/low compression or Normal/high compression) or
IV. CONTROLS AND DISPLAY | 16 |