NikonGear'23

Gear Talk => Lens Talk => Topic started by: wolan on September 20, 2020, 21:49:28

Title: Adapting the W-Nikkor S (RF) to Leica M10
Post by: wolan on September 20, 2020, 21:49:28

Hi,

In order to adapt the W-Nikkor S 35mm f1.8 (RF) to a Leica M10 I have been looking for an adapter in the internet and found a couple of them:
- Very cheap: https://www.ebay.com/itm/Nikon-S-Rangefinder-RF-lens-to-Leica-M-L-M-Mount-Adapter-M9-M-E-Type-240-246/154031872822?hash=item23dd03db36:g:7~gAAOSwFdtX0SmE
- Very expensive:  https://shop.cameraquest.com/nikon-contax-rangefinder-lens-adapters/amedeo-nikon-rangefinder-mount-to-leica-m-mount-adapter

Why is the second option so expensive?
I have heard that S lenses can be adapted to the Leica M mount, but this Nikkor 35mm f1.8 is an exception, because it has a protruding back element that interferes with the rangefinder mechanism? Would the second adapter somehow be a better solution? By the way, I can used it with the Visoflex and give up the focusing with the rangefinder if no other option is left

Thanks.

Title: Re: Adapting the W-Nikkor S (RF) to Leica M10
Post by: richardHaw on September 21, 2020, 01:30:31

amedeo makes the best adapters ::)

cheap made in china ones do not even compare. :o :o :o

Title: Re: Adapting the W-Nikkor S (RF) to Leica M10
Post by: Akira on September 21, 2020, 10:34:49

Amedeo adapter allows S-mount 50mm lenses to focus.  Its construction is much more complicated than the simple S to M adapter.

Title: Re: Adapting the W-Nikkor S (RF) to Leica M10
Post by: Bent Hjarbo on September 21, 2020, 13:52:51

The distance to the sensor must be the same regardless of the adapter, otherwise it will not be able the have infinity focus.

Title: Re: Adapting the W-Nikkor S (RF) to Leica M10
Post by: Birna Rørslett on September 23, 2020, 18:54:13

The Roxsen items tend to be fairly faithful to the proper dimensions required of the adapter. So I for one would not hesitate getting one. Sometimes all that is needed is an extra shim if the adapter is slightly out of true.

The 3.5cm f/1.8 has its own focusing mount so doesn't  need one of those expensive Amadeo adapters with extra focusing built-in.

The short register distance of the Nikkor prevents its use on a Visoflex or similar.

Title: Re: Adapting the W-Nikkor S (RF) to Leica M10
Post by: Toby on September 25, 2020, 11:20:28

I have at least 30 cheap Chinese adapters for various lenses (for Sony mirrorless) and rarely have had problems with them. Manufacturing tolerances do tend to be sloppy, and sometimes there is a bit of play in them, but as long as your lens is held parallel to the focal plane and you can focus using the sensor there is no real problem with that.