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24-70 vs 24-105 -- is one 24mm FOV really wider?

Started Jun 11, 2007 | Discussions thread
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Gary Dean
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24-70 vs 24-105 -- is one 24mm FOV really wider?
Jun 11, 2007

According to the specs on the Canon website, there seems to be quite a discrepancy in the wide-end field of view between the 24-70 f/2.8 L, and the 24-105 f/4.

Canon states that the 24-105 has a field-of-view (diagonal) of 84 degrees, compared to the 24-70, which they list as being 74 degrees (also measured diagonally) -- both specs based on a full-frame body.

I thought that two lenses with the same focal length on the same body would have the same field of view.

Has anybody compared the field-of-view difference between these two lenses? Are the specs that I'm reading correct?

FYI, the links for the specs of the two Canon zooms are at:




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