Sat Jan 04, 2020 10:55 am
The expensive 21mm Contax/Yashica is a retrofocus lens, which has no problems on modern sensors. Rangefinder lenses like the Biogon tend to show color shifts in the corners, it needs to be tested and it would only work on a 4K anyway.
The kind of distortion I was referring to in the case of the 18mm is not the typical wide-angle distortion of straight edges (which is not bad either in that lens), but the effect on perspective. Hard to describe, but to me it looks better than the 18mm side of my otherwise excellent Sigma 18-35mm.
Now that the cat #19 is out of the bag, test it as much as you can and use the subforum.
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