Image Recording, Processing And Protection - Canon EOS EOS 5D White Paper

Image Recording,
Processing and Protection
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
Digital control
DIGIC II
circuit board
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
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.
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