(HELP!) Meyer Optik 135mm 2.8 M42/ EXA Mount adapter on sony a7 series

[kobebryant]

I recently purchased this lens Meyer Optik 135mm 2.8 claimed to be in M42 mount. So I purchased a m42 convertor from K&F concept on amazon. However, it seems I cannot make it fit. Can anyone tell me the correct adapter to use?

I was able to remove some rings also. Attached are the pictures of the mount.

Thanks.

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

[addicted2light]

That's a bayonet, so definitely not a m42 screw mount.

 

According to this page:

 

http://vintage-camera-lenses.com/meyer-optik-gorlitz-orestor-2-8-135/

 

it has either an Exacta mount:

 

Selens Exakta EXA lens to Sony NEX E mount adapter NEX-5T 7 6 A5100 A7 A7R A6000

 

or a Praktina one:

 

For Praktica PB Lens to Sony NEX-3 NEX-5 Lens Mount Adapter Ring high precision

 

Judging from the pictures and from this other page:

 

http://vintage-camera-lenses.com/exa-exakta-mount-adapter/

 

my guess would be an Exakta mount. 

[kobebryant]

Thank you so much for your help.  Pretty sure I have to get a new adapter now.

[addicted2light]

Thank you so much for your help.  Pretty sure I have to get a new adapter now.

You're welcome!