1.25 or 1.3 multiplyer for 1DMk2

Started May 5, 2007 | Discussions thread
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rmarko
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1.25 or 1.3 multiplyer for 1DMk2
May 5, 2007

Although Canon refers to the 1DMk2 a 1.3X crop factor camera, the actual CMOS chip size translates to a factor of approximately 1.254X. I know it's a rather small difference, but does this factor hold up when computing the actual crop factor "equivalent" focal length of lenses? For example, using the 1.3X factor, a 17mm translates to 22.1mm ... whereas using 1.254X, it translates to 21.38mm.
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rmarko

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