Re: M42 lens on K mount

[Peter J. Alling]

No it doesn't work with all M42 lenses some of the lenses have flanges 
that are too narrow.

William Robb wrote:

----- Original Message ----- 
From: "Don"
Subject: Re: M42 lens on K mount



 

It's fine, mine is the same way.
I ended up permanently mounting the adaptor to the lens and
     

cutting a
 

locking notch in the mount so as to make a bayonet lens out of it.
Works like a hot damn.
William Robb
     

Any advise on how to do this?  I wouldn't mind modding my one screw
   

mount
 

for this.
   

Take the spring clip off of an M42-K adaptor. Screw the adaptor onto
the lens, and then put the screw that held the spring in place back
into it's hole.
With the spring gone, the screw will go in far enough to lock the
adaptor to the lens.
Now, you have a K mount lens that mon't lock.
Here's the part that requires some bravery.
You have to determine where best to drill a hole in the lens mount to
mesh with the locking pin on the camera.
Once you have done that, you drill a wee hole into the mount.
A machine shop and drill press would be a good place to do this,
although I did mine with a Dremel.
I don't know if this will work with all M42 lenses or not.

I take no responsibility for any damages cause to persons or property
from attempting the above described modification.
William Robb