jdriffill
Established
The test shots look great. Did you establish whether your lens is early enough and has the same optics as the RF version, or is the later planar-type (5/4) formula?
The size and shape of the rear lens surface distinguishes them quite clearly. The RF version has a smaller diameter and is flat (or at least very nearly flat) whereas the later F mount version is larger diameter and convex.
As Rance Eric has the RF lens, and you have an F-mount version, you'll have ample opportunity to compare their performance.
All the best, John
The size and shape of the rear lens surface distinguishes them quite clearly. The RF version has a smaller diameter and is flat (or at least very nearly flat) whereas the later F mount version is larger diameter and convex.
As Rance Eric has the RF lens, and you have an F-mount version, you'll have ample opportunity to compare their performance.
Won't argue with that.Handsome subject
All the best, John
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