AF point distribution on DSLRs
Does the size of the submirror that directs light to the AF module limit the distribution of AF points to the centre of the frame in DSLRs.
On FF cameras, it appears even with the increasing number of AF points, they 're still bunched up in the middle.
Even Sony SLTs that don't use a submirror also seem to have AF points bunched in the centre.
I for one would find it extremely useful to have greater coverage of AF points on the periphery.
Or are there other problems such as issues with lens eg. field curvature, light fall off, edge sharpness issues?
I'm referring to PDAF of course, and not the on-sensor ones.
Perhaps we'll have to wait for CDAF points that work in conjunction with PDAF or on-sensor PDAF points before we get a wider distribution of AF points?
- 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%
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