making Contax/Kiev adapter for Samsung NX

kansalliskalaCafe

I have a crappy Kiev 4AM as donor on the lens side.

So what would be the best body side adapter to fix it in?

calvin83 · Joined: 12 Apr 2009 Posts: 7568 Location: Hong Kong

The Samsung NX-mount has a register distance of 25.50mm which is longer than most other MILC camera. It would be better starts with a thin adapter like this Click here to see on Ebay.

kansalliskala · Expire: 2016-12-30

hmm .. 7,5 millimeters difference to Sony E .. pretty tight I'd say

compare to this
Click here to see on Ebay

calvin83 · Joined: 12 Apr 2009 Posts: 7568 Location: Hong Kong

You can do it but you may need a latch Click here to see on Ebay .

Lloydy · Expire: 2022-01-01

I hacked the front off a Contax and hot glued it to a M39 - NEX adapter with a short spacer. The focus works through the original wheel on top. It aint pretty, but it works. Wink

Attila · Expire: 2025-11-18

Usually people do from body+M39 adapter, that should works. but may not on NX indeed.

kansalliskalaCafe · Posted: Mon Dec 28, 2015 7:32 am Post subject:

First I thought of m39 but I don't think the helicoid fits there. I think I need an adapter that is larger in diameter. Also need to grind some metal off the back of the helicoid.

kansalliskalaCafe · Posted: Mon Dec 28, 2015 7:36 am Post subject:

calvin83 · Joined: 12 Apr 2009 Posts: 7568 Location: Hong Kong

kansalliskalaCafe · Posted: Mon Dec 28, 2015 9:56 am Post subject:

The rim in the middle of the helicoid is about 25 mm from the film plane at infinity, so if one has a 1 mm thick adapter base, one would cut the helicoid at about where the little square hole is.

One problem is that if you cut the helicoid too short, it gets wobbly.

Outer part of the helicoid is about 41 mm outed diameter, so it fits nicely into e.g. Nikon mount, one just has to find one with a square bottom. Or take only the bottom part and attach it somehow.

like this: Click here to see on Ebay

Everything needs precision metal work, so I don't know if it is really doable. I can cut it myself with a grinder, but don't know about the result ..

kansalliskalaCafe · Posted: Wed Dec 30, 2015 12:27 pm Post subject:

Now that I looked at the c/k mount more carefully, I think that the solution is to get a m39 adapter and put a 41 mm hole (or so) hole in it. Then just attach it to the red arrow marked place, set the infinity and glue or solder the parts together. If there is too much tube inside the body, one can easily remove it. I just have to find a man or a woman with a lathe.