24-70 vs 24-105 -- is one 24mm FOV really wider?
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:
- Canon EOS M58.8%
- Panasonic G85/G803.3%
- Panasonic FZ2500/FZ20001.9%
- Panasonic LX10/LX151.2%
- Panasonic GH5 development3.6%
- Sony a99 II15.9%
- Nikon KeyMission 170 and 801.0%
- Fujifilm GFX 50S development28.3%
- Olympus E-M1 II development18.7%
- Olympus E-PL80.1%
- Olympus 25mm F1.2 Pro1.5%
- Olympus 12-100mm F4 IS Pro1.9%
- Olympus 30mm F3.5 Macro0.1%
- Sigma 85mm F1.4 Art3.6%
- Sigma 12-24mm F4 Art2.6%
- Sigma 500mm F4 DG OS HSM Sport2.4%
- YI M12.2%
- GoPro Hero50.8%
- GoPro Karma drone2.2%