fredmiranda.com
Login

Moderated by: Fred Miranda
  New fredmiranda.com Mobile Site
  New Feature: SMS Notification alert
  New Feature: Buy & Sell Watchlist
  

FM Forums | Canon Forum | Join Upload & Sell

  

Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives

  
 
IndyFab
Offline
• • • • •
Upload & Sell: Off
p.1 #1 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives





Jul 17, 2026 at 03:57 PM
burningheart
Offline
• • • •
Upload & Sell: Off
p.1 #2 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives




The one thing after watching both videos I question is allowing recording of only 4 f-stops that you can set for exif. It's better than nothing but only 4 is limiting.



Jul 18, 2026 at 12:46 PM
RoamingScott
Online
• • • • • •
Upload & Sell: Off
p.1 #3 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives


What's the consensus on RF sensor stack thickness affecting M glass, or is it so niche right now that no one knows?


Jul 18, 2026 at 12:50 PM
burningheart
Offline
• • • •
Upload & Sell: Off
p.1 #4 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives


When I use my M glass with the Novoflex adapter I found my WAs (16-18-21 and 24 Elmar) was not to my satisfaction. The 50 Lux,90 APO and 135 APO were okay. I have yet to try my 35 Lux.

The images were not as crisp when using them on my Monochrom bodies, can't comment on comparison of M full frame body as I only have M8.

Nevertheless I always like options.




Jul 18, 2026 at 01:04 PM
 


Search in Used Dept. 

RoamingScott
Online
• • • • • •
Upload & Sell: Off
p.1 #5 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives


burningheart wrote:
When I use my M glass with the Novoflex adapter I found my WAs (16-18-21 and 24 Elmar) was not to my satisfaction. The 50 Lux,90 APO and 135 APO were okay. I have yet to try my 35 Lux.

The images were not as crisp when using them on my Monochrom bodies, can't comment on comparison of M full frame body as I only have M8.

Nevertheless I always like options.



Kinda what I figured. On most mounts by time you get to ~40mm it becomes just as usable as natively on M.



Jul 18, 2026 at 01:08 PM
rscheffler
Offline
• • • • • •
Upload & Sell: Off
p.1 #6 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives


Depends on what your expectations are. 50mm and longer can still be affected by sensor stack thickness differences. Fred's test of the VM 90/2 APO showed that it was slightly less good on Sony than Leica M.

https://www.fredmiranda.com/forum/topic/1886307/6#16736787

But if one isn't splitting hairs... and I think both Canon and Nikon handle M lenses better than Sony.

A challenge with adapting to Canon is that some of the sensors also exhibit edge color shift, though the R5 (which is FSI) and the R5II (BSI) seem not to be affected. Not sure about R1 or R1, which I believe are BSI/stacked, but I have seen color shift with the FSI 24MP R6II.



Jul 18, 2026 at 05:20 PM
Steve Spencer
Online
• • • • • • •
Upload & Sell: On
p.1 #7 · Canon RF Users Rejoice: Leica M Autofocus Adapter Arrives


RoamingScott wrote:
What's the consensus on RF sensor stack thickness affecting M glass, or is it so niche right now that no one knows?


I have used the Voigtlander 21 f/3.5 and just like Fred's tests on Sony it performs pretty flawlessly on my Canon R5 II. I would expect any lens that performs well on Sony will also perform well on Canon RF. I'm not sure any lenses would perform better on Canon than Sony, but in time we will know more.



Jul 18, 2026 at 05:53 PM







FM Forums | Canon Forum | Join Upload & Sell

    
 

Welcome back
Log in to your account