Canon EOS 20D - Manual (Page 47)

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3 Setting the Image-recording Quality
The RAW format assumes that the image will undergo post-processing
with a personal computer. Special knowledge is required, but you can
use the bundled software to obtain the desired effect. <1> images
are processed according to the white balance, color space, and
processing parameters set at the time of shooting. Image processing
refers to adjusting the RAW image’s white balance, contrast, etc., to
create the final image. Note that direct printing and print ordering
(DPOF) will not work with RAW images.
¡ The number of possible shots applies to a 256MB CF card.
¡ The single image size, number of possible shots, and maximum burst during continuous
shooting (p.48) are based on Canon’s testing standards (ISO 100 with [Parameter 1]
set). The actual single image size, number of possible shots, and maximum burst will
vary depending on the subject, shooting mode, ISO speed, parameters, etc.
¡ In the case of monochrome images (p.59), the file size will be smaller so the
number of possible shots will be higher.
¡ On the top LCD panel, you can check the remaining number of images the CF
card can record.
¡ A different image-recording quality can be set separately for the Basic Zone
modes and Creative Zone modes.
About the RAW Format
Image File Size and CF Card Capacity According to Image-Recording Quality
Image-recording quality Image File Size (Approx. MB) Possible Shots
73 3.6 66
83 1.8 133
74 2.2 112
84 1.1 221
76 1.2 195
86 0.6 380
1+73
–
18
1+83 22
1+74 21
1+84 23
1+76 23
1+86 25
1 8.7 27