pulper11 wrote:
I own both canon and sony cameras. is there a benefit to either version of Voigtlander lens (RF vs FE)? Maybe manual focus is better with one camera vs the other? I have the R5ii and R3 along with the A9 and A9iii. thanks!
I have used Voigtlander lenses on both Sony and Canon extensively and I have a pretty strong preference for using them on Canon and with your cameras Voigtlander RF lenses will work well. My preference for using them on Canon is mostly the excellent arrow focus aid that turns green when focus is attained. It works great almost all the time and means you don't have to use magnification or peaking except in really rare instances. So for the Voigtlander lenses that are made in both RF and FE mounts, I personally would get them in RF, but there are of course a number of lenses that are made for FE mount and are not made for RF mount.
By the way on Canon you can buy the Shoten adapter for M lenses with electronic contacts and that adapter lets you use M lenses on Canon RF cameras with the excellent focus aids. That is another option for some lenses.
with the canon and that adapter, do the m lenses suffer curvature issues (I believe that's the issue) that the m lenses suffer with the sony? I've read a little bit that the sony has a thicker sensor (??) so that has an impact when using the adapter and the m lenses.
Jun 19, 2026 at 09:58 AM
Steve Spencer Offline • • • • • • • Upload & Sell: On
pulper11 wrote:
with the canon and that adapter, do the m lenses suffer curvature issues (I believe that's the issue) that the m lenses suffer with the sony? I've read a little bit that the sony has a thicker sensor (??) so that has an impact when using the adapter and the m lenses.
It depends on the lens whether they show larger field curvature or not. I have the Voigtlander 21 f/3.5 and my experience is consistent with Fred's review that the lens performs just as well on Canon as it does on Leica M and as well as the Sony version on Sony FE mount. Fred reports very similar performance on Sony as on Leica M for the 50 f/3.5 APO Skopar and the 75 f/2.8 APO Skopar. I expect that the new 90 f/4 APO Lanthar won't show performance declines either. The ultrawides at 10, 12, and 15 generally don't show big declines either and I can confirm that personally with the 15 f/4.5, but most other lenses do suffer from increase curvature of field, perhaps a bit less on Canon than Sony, but it will still be there for many lenses on Canon as well.
