Interessing!
Only Leica user seem to use 90mm on their RF.
Why?
There are so many good old RF with interchangable lenses out there with the possibility to use lenses around 90mm - nobody does it?
Summicron 90/2 v3:
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Roland.
The 90mm has been a leica lineup since the early 30s, and when the time came 'everyone' else (most RF camera makers) went with the 85mm. So ultimately I think it has to do with frame line compatibility. 85 frames can be used with 90 lenses and vice versa, but I think tradition tends to keep 90mm with Leica and 85mm with those cameras that have the proper frame lines.
There are really good non Leica short teles, and cameras fitting them, too. For example, I find my Canon P 1:1 finder with 100mm framelines great for use with the Canon 100/3.5 or Nikkor 105/2.5. Then again, I find it easy to frame 85, 90, 100 and 105 all with the Leica M 90mm framelines. Remember that teles get "much longer" at close focus. For example, at 1m, an 90mm lens has a true focal length of 98.9mm.
Summicron 90/2 v3:
![]()
Roland.
Stunning black and white mountain landsacpes Boris.



I absolutely love the offerings in the ~90mm range of fast RF coupled lenses. I use them on Leica M bodies, because an old M6 just happened to have been the camera, that started my love for RF cameras.
My favourite long lenses in the ~90mm range are:
Canon 100/2 LTM and Nikkor 85/1.5 LTM
My favourite lightweight/ compact short tele (but reaching 90mm) is the 75/2.5 Voigtlander - marvellous lens for the money!


I'd use an 85 on my Contax IIIa, but with the Elmar-C on the M3, I can't justify the expense.Interessing!
Only Leica user seem to use 90mm on their RF.
Why?
There are so many good old RF with interchangable lenses out there with the possibility to use lenses around 90mm - nobody does it?
Tim these are lovely, and its interesting to see you use a Leica as a portrait camera.


