View previous topic :: View next topic |
Author |
Message |
Kathmandu
Joined: 09 Dec 2009 Posts: 1479 Location: (Kathmandu,Nepal. Currently)Pacific Northwest, USA
Expire: 2012-04-08
|
Posted: Sun Jul 31, 2011 1:51 am Post subject: |
|
|
Kathmandu wrote:
pdccameras wrote: |
Kathmandu wrote: |
I have a beautiful, bulky and heavy (Zebra)Jena Sonnar 180mm f28 that has a Pentacon 6 to M42 mt. on it. I have the lens sitting in the sun -the mount is not coming off easily. I am hoping that the hot summer sun will loosen up the mount enough for me to take it off. -so I can try it on the Tessar. |
Definitely worth a try. The Tessar I have has the Exakta 66 mount which is quite a bit smaller than the P6 mount, however. Also, I'm not sure the back focus for Exacta 66 and P6 are the same. |
Really, I thought the Exakta 66, Pentacon6 and Kiev 60/Kiev 6 all shared the same mount(breech lock) and same register distances which is 74.1. I'll have to double check. _________________ kathmandu
Sony α 700 DSLR
|
|
Back to top |
|
|
pdccameras
Joined: 23 Aug 2009 Posts: 826 Location: Putnam, CT
Expire: 2014-08-11
|
Posted: Sun Jul 31, 2011 2:11 am Post subject: |
|
|
pdccameras wrote:
Kathmandu wrote: |
pdccameras wrote: |
Kathmandu wrote: |
I have a beautiful, bulky and heavy (Zebra)Jena Sonnar 180mm f28 that has a Pentacon 6 to M42 mt. on it. I have the lens sitting in the sun -the mount is not coming off easily. I am hoping that the hot summer sun will loosen up the mount enough for me to take it off. -so I can try it on the Tessar. |
Definitely worth a try. The Tessar I have has the Exakta 66 mount which is quite a bit smaller than the P6 mount, however. Also, I'm not sure the back focus for Exacta 66 and P6 are the same. |
Really, I thought the Exakta 66, Pentacon6 and Kiev 60/Kiev 6 all shared the same mount(breech lock) and same register distances which is 74.1. I'll have to double check. |
I have a set of P6 extension tubes and I couldn't get them to fit on the Tessar. I think the modern Exacta 66 that came out several years ago does have a P6 mount, but the original model from the 50's has something else. _________________ Canon 5D Mii, Canon 40D, Canon 350D IR, Sony A7 Mii, Sony Alpha-6000, a ton of lenses: AF & MF and too many cameras to count, all formats: 110 - 4x5. |
|
Back to top |
|
|
Kathmandu
Joined: 09 Dec 2009 Posts: 1479 Location: (Kathmandu,Nepal. Currently)Pacific Northwest, USA
Expire: 2012-04-08
|
Posted: Sun Jul 31, 2011 2:31 am Post subject: |
|
|
Kathmandu wrote:
pdccameras wrote: |
Kathmandu wrote: |
Really, I thought the Exakta 66, Pentacon6 and Kiev 60/Kiev 6 all shared the same mount(breech lock) and same register distances which is 74.1. I'll have to double check. |
I have a set of P6 extension tubes and I couldn't get them to fit on the Tessar. I think the modern Exacta 66 that came out several years ago does have a P6 mount, but the original model from the 50's has something else. |
This is going to be educational for me - .Thanks for clearing that up-so what I need is an adapter -Old Exakta 66 to M42. _________________ kathmandu
Sony α 700 DSLR
|
|
Back to top |
|
|
pdccameras
Joined: 23 Aug 2009 Posts: 826 Location: Putnam, CT
Expire: 2014-08-11
|
Posted: Sun Jul 31, 2011 10:52 am Post subject: |
|
|
pdccameras wrote:
Kathmandu wrote: |
pdccameras wrote: |
Kathmandu wrote: |
Really, I thought the Exakta 66, Pentacon6 and Kiev 60/Kiev 6 all shared the same mount(breech lock) and same register distances which is 74.1. I'll have to double check. |
I have a set of P6 extension tubes and I couldn't get them to fit on the Tessar. I think the modern Exacta 66 that came out several years ago does have a P6 mount, but the original model from the 50's has something else. |
This is going to be educational for me - .Thanks for clearing that up-so what I need is an adapter -Old Exakta 66 to M42. |
Well, yes, but it would be exceptionally rare if it exists at all! The good news is that if you look carefully at the Old Exakta 66 - Exakta 35mm adapter that is on the Tessar already, you will see it is a very simple affair - just a roughly conical Aluminum tube that surrounds the old mount and is held on with three set screws, with the 35mm Exakta mount slapped on the back. Even a mediocre machinist could knock one out in about an hour - less if you supplied an m42 mount ring so threads didn't have to be cut! I will draw up a sketch and post. _________________ Canon 5D Mii, Canon 40D, Canon 350D IR, Sony A7 Mii, Sony Alpha-6000, a ton of lenses: AF & MF and too many cameras to count, all formats: 110 - 4x5. |
|
Back to top |
|
|
Kathmandu
Joined: 09 Dec 2009 Posts: 1479 Location: (Kathmandu,Nepal. Currently)Pacific Northwest, USA
Expire: 2012-04-08
|
Posted: Mon Aug 01, 2011 1:01 am Post subject: |
|
|
Kathmandu wrote:
pdccameras wrote: |
Well, yes, but it would be exceptionally rare if it exists at all! The good news is that if you look carefully at the Old Exakta 66 - Exakta 35mm adapter that is on the Tessar already, you will see it is a very simple affair - just a roughly conical Aluminum tube that surrounds the old mount and is held on with three set screws, with the 35mm Exakta mount slapped on the back. Even a mediocre machinist could knock one out in about an hour - less if you supplied an m42 mount ring so threads didn't have to be cut! I will draw up a sketch and post. |
I see the possibilities- sure I'd love to see a sketch. _________________ kathmandu
Sony α 700 DSLR
|
|
Back to top |
|
|
pdccameras
Joined: 23 Aug 2009 Posts: 826 Location: Putnam, CT
Expire: 2014-08-11
|
Posted: Mon Aug 01, 2011 1:12 am Post subject: |
|
|
pdccameras wrote:
Kathmandu wrote: |
pdccameras wrote: |
Well, yes, but it would be exceptionally rare if it exists at all! The good news is that if you look carefully at the Old Exakta 66 - Exakta 35mm adapter that is on the Tessar already, you will see it is a very simple affair - just a roughly conical Aluminum tube that surrounds the old mount and is held on with three set screws, with the 35mm Exakta mount slapped on the back. Even a mediocre machinist could knock one out in about an hour - less if you supplied an m42 mount ring so threads didn't have to be cut! I will draw up a sketch and post. |
I see the possibilities- sure I'd love to see a sketch. |
Here is one way to do it. This is the simpliest, most cost-effective way I could think of. Chop about 10mm off the existing Exakta 66 -> Exakta 35 mount and stick on a T-mount inner ring. Now you can put whatever kind of T-mount adapter on the end of this lens: from Alpa to Zeiss! No threads have to be cut, either, so the machine time on the lathe is fairly minimal. The machinist could get fancy and pin the t-mount race in place with some tiny dowel pins if he/she wanted to, but I don't think it would be necessary. Cheers! _________________ Canon 5D Mii, Canon 40D, Canon 350D IR, Sony A7 Mii, Sony Alpha-6000, a ton of lenses: AF & MF and too many cameras to count, all formats: 110 - 4x5. |
|
Back to top |
|
|
Kathmandu
Joined: 09 Dec 2009 Posts: 1479 Location: (Kathmandu,Nepal. Currently)Pacific Northwest, USA
Expire: 2012-04-08
|
Posted: Mon Aug 01, 2011 2:42 am Post subject: |
|
|
Kathmandu wrote:
Thanks for the detailed / simple drawing. -Very nice. _________________ kathmandu
Sony α 700 DSLR
|
|
Back to top |
|
|
vroger
Joined: 23 Jul 2014 Posts: 623 Location: MN
Expire: 2016-10-21
|
Posted: Sun Oct 23, 2016 5:04 pm Post subject: |
|
|
vroger wrote:
Looking for a way to mount my Czj tessar 8cm 2.8 exakta 66 1950's on something as well. M42 would be ideal, or exakta.
Anyone up to making a adapter that has the machinist gear? PM me. _________________ Roger Lund
Canon EOS-M, Fuji X-E2, Helois 44-0 Vintage, Helois 44-4, Canon FD 50mm 1.8, Jupiter 8 50mm F2, Jupiter 3 50mm F1.5, Canon Serenar 50mm 1.9, Canon 50mm 1.8 LTM, Canon Serenar 85mm F2, Leica 50mm f2 summar, E.Ludwig 50mm F2.9, Rekagon will.wetzlar 50mm 2.8,, a.schacht ulm travenar 135mm F3.5, CZJ 29mm 2.8 Hoya 28mm 2.8, CZ Tessar 50mm 2.8, MIR 37mm. 2.8, Porst Color Reflex MC 50mm 1.7, Vivitar 28mm 2.8 mc cf
http://photography.rogerlund.net
For sale: Canon EOS-M and MF Adapters. |
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|