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EOS•DCS 5 Lenses: Lenses behave differently with the EOS•DCS 5 from a conventional EOS 35mm SLR. Although actual aperture values and focal lengths remain the same, the effective image area with the EOS•DCS 5 is only 9.2 mm x 13.8 mm compared to the conventional 35 mm format of 24 mm x 36 mm.
Since the EOS•DCS 5 image is smaller than a conventional 35 mm frame, it must be enlarged by approximately 160% to achieve the same output size (in terms of image height) on screen or on hard copy. Under this condition, the “effective” focal length of any lens used with the EOS•DCS 5 is approximately 2.60 times greater than when used with a conventional EOS 35 mm SLR. Use the following chart as a quick reference for effective focal lengths of EF lenses when used with the EOS•DCS 5.
NOTE: The EOS•DCS 5 is compatible with all Canon EF lenses (no restric- tions).
This EF lens . . . |
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24 |
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20 | 28 |
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50 70 90 | 135 | 200 | 300 | 400 | 500 |
. . . performs approximately like this lens.
