Nikon Rangefinder Lens on Leica M

I bought the Amadeo Contax to Leica-M adaptor for my Sonnar 50/1.5, and found out that it works fine on the W-Nikkor 35mm 2.5. I frame with a very nice CV 35mm shoe accessory VF. I'm sure there must be a focus error up close and wide open, but I haven't come across it.

Polish Day Parade, 5th Ave. by Victor Ross, on Flickr
 
I ordered today a wide angle adapter from Amedeo. It is not RF coupled.

Vic: 35mm is not very wide. A 21mm lens a special adapter.
 
KyleCharles said:
My Nikkor 35/2.5 focuses just fine (with full RF coupling) on my barnack and M2 via the coupled version Amedeo adapter. Just know that if you buy Amedeo's M adapter, it will only bring up the 50mm framelines on an M camera. Since I also have 50, 85, & 135mm lenses, I decided to go with the Amedeo LTM adapter. When I use it on my M2, I use the Voigtlander LTM/M adapter that will bring up the appropriate framelines for whatever lens I'm using.

Amedeo makes a good product. I'm very happy with mine.
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I tried my OEM Nikkor 35mm f2.5 on a Nikon RF to LTM Amadeo coupled adapter and it does not work properly: there is some interference between the back side of the lens barrel and the internal side of the adapter at some points. It could be turned all the way but it's touching sometimes so I prefer not to use this combo.
 
I got yesterday a wide angle lens adapter S to M by Amedeo. It does not have RF coupling, and it is cheap.
 
Vics said:
I bought the Amadeo Contax to Leica-M adaptor for my Sonnar 50/1.5, and found out that it works fine on the W-Nikkor 35mm 2.5. I frame with a very nice CV 35mm shoe accessory VF. I'm sure there must be a focus error up close and wide open, but I haven't come across it.
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With a 35mm F2.5 lens, depth of field at maximum aperture and minimum focus distance is sufficient to hide the focus error.
 
Phil_F_NM said:
No, the CV lenses with deep rear elements will not work as they will hit the RF cam follower in the Leica M body. Neither will the 3.5cm f/1.8 Nikkor. The Jupiter-12 has a similar problem but can easily be modified to fit.
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What do you need to do for J-12 to fit? I'd love to try it on my M6 with Amedeo adapter. Can you point me to a source where this is explained?

Thank you!
 
I bought an Amedeo Nikkor S-mount to Leica M adapter. I have a 3.5cm 2.5 S-mount in the adapter and it works fine in my M8 complete with rangefinder coupling.
 
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