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Optische Werke Gottingen GmbH Westar 2.8/45
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PostPosted: Fri Apr 17, 2015 12:15 am    Post subject: Optische Werke Gottingen GmbH Westar 2.8/45 Reply with quote
Received this lens a while back and just took a couple tests because I couldn't focus very far out. It is a pancake with M39 thread mount. I put on a M39/42 step up ring, then mounted to M42 adapter. So it made sense that it wouldn't focus to infinity. I bought a "Leica M39/ L39/ LTM lens to Sony E Mount NEX adapter " from Rainbowimaging, thinking that was correct. Now it seems to sit way too close to the sensor and I can't get anything in focus. Where did I go wrong?




Test at f/2.8 on a rainy day last month...


PostPosted: Fri Apr 17, 2015 1:42 am    Post subject: Reply with quote
This is a lens made for Braun Paxette camera. I would suggest put it into a helicoid to shorten the MFD.

http://forum.mflenses.com/best-method-to-couple-paxette-l39-to-nex-t63822.html


PostPosted: Fri Apr 17, 2015 7:33 pm    Post subject: Reply with quote
Change nothing, this looks like a real Barry Lyndon 2 candidate.


PostPosted: Fri Apr 17, 2015 9:15 pm    Post subject: Reply with quote
Pancolart wrote:
Change nothing, this looks like a real Barry Lyndon 2 candidate.


Um, what?


PostPosted: Fri Apr 17, 2015 9:21 pm    Post subject: Reply with quote
calvin83 wrote:
This is a lens made for Braun Paxette camera. I would suggest put it into a helicoid to shorten the MFD.

http://forum.mflenses.com/best-method-to-couple-paxette-l39-to-nex-t63822.html


I read that and looked up Paxette register and see that is 44mm, which makes more sense to me in what I saw than does shortening the distance as much as the LTM adapter did. It seems the M42 adapter is 1.5mm too long. I'm thinking a simpler and definitely less expensive approach might be to just take 1.5mm out of the middle of the M42 adapter and epoxy it back together. I can probably get it done using my wood lathe - spinning ensures an even cut line.


PostPosted: Sat Apr 18, 2015 2:46 pm    Post subject: Reply with quote
woodrim wrote:
Pancolart wrote:
Change nothing, this looks like a real Barry Lyndon 2 candidate.


Um, what?

Softness and glow of Kubrick's Zeiss F0.7 in Barry Lyndon Wink.


PostPosted: Sat Apr 18, 2015 8:15 pm    Post subject: Reply with quote
Be temped to try it on another adapter.. know anyone else with one close by?


PostPosted: Sat Apr 18, 2015 8:53 pm    Post subject: Reply with quote
You can buy an adaptor. I got one on the recommendation of another member. It converts Braun to Leica, use it on a regular LTM adaptor. I'll look for an image or link and edit this post...

EDIT: This is the adaptor, you can get it from Redwood Components (pic linked thru to ebay) this is who I bought mine from. He makes a variety of adaptors for some rather exotic lenses. http://stores.ebay.com/redwoodcomponentsandaccessories?_trksid=p2047675.l2563


PostPosted: Sun Apr 19, 2015 4:02 pm    Post subject: Reply with quote
vroger wrote:
Be temped to try it on another adapter.. know anyone else with one close by?


Another what adapter? M42 is too long, M39 too short. Others are just wrong. I can get a M42 adapter from Rainbow imaging for ~$6 including shipping and cut off 1.5mm. Can't lose much in trying. And besides, NO ONE does MF for hundreds of miles from what I can tell.


PostPosted: Sun Apr 19, 2015 5:48 pm    Post subject: Reply with quote
Well, I have a spare extension that will give you infinity on a ordinary m39 adapter. Just PM me if this could be interesting Wink


PostPosted: Sun Apr 19, 2015 6:22 pm    Post subject: Reply with quote
Nordentro wrote:
Well, I have a spare extension that will give you infinity on a ordinary m39 adapter. Just PM me if this could be interesting Wink



As in extension tube? I would be interested in buying something like that as well.
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