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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Thu Nov 07, 2019 3:45 am Post subject: Schneider-Kreuznach Tele-Xenar 7,5cm f3,8, Robot (M26) Mount |
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cellotone wrote:
Schneider-Kreuznach Tele-Xenar Robot (M26) mount, 7,5cm f3,8 lens, Serial #1758XXX, was made in 1939?
_________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses
Last edited by cellotone on Thu Nov 07, 2019 7:48 am; edited 2 times in total |
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benadamx
Joined: 25 Feb 2019 Posts: 329
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Posted: Thu Nov 07, 2019 6:34 am Post subject: |
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benadamx wrote:
that's interesting, first i've ever heard of M26 mount |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Thu Nov 07, 2019 7:13 am Post subject: |
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cellotone wrote:
benadamx wrote: |
that's interesting, first i've ever heard of M26 mount |
, Yes, the Robot lenses are 26mm screw mount.
http://corsopolaris.net/supercameras/robot/26mm.html (mine looked similar to the #1788XXX 7,5cm f3,8 one).
http://forum.mflenses.com/question-robot-screw-mount-lenses-different-thread-sizes-t78568.html (tb_a's post). _________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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Sciolist
Joined: 29 Mar 2017 Posts: 1445 Location: Scotland
Expire: 2021-04-16
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Posted: Thu Nov 07, 2019 11:35 am Post subject: Re: Schneider-Kreuznach Tele-Xenar 7,5cm f3,8, Robot (M26) M |
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Sciolist wrote:
cellotone wrote: |
Schneider-Kreuznach Tele-Xenar Robot (M26) mount, 7,5cm f3,8 lens, Serial #1758XXX, was made in 1939?
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Quite wonderful .
1.600.000 is reported in the link below as September 1939.
1,800,000 as June 1942.
http://www.ground-glass.net/large-format/schneider-lenses-age |
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jamaeolus
Joined: 19 Mar 2014 Posts: 2927 Location: Eugene
Expire: 2015-08-20
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Posted: Thu Nov 07, 2019 7:21 pm Post subject: |
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jamaeolus wrote:
I have this lens in robot mount that needs work its old black finish peeling. I also have one in the AKA mount. I had a akarelle I stole the mounting flange from to make an AKA m42 adapter, but have yet to finish the project. Is this lens the version with heavy brass with polished chrome? _________________ photos are moments frozen in time |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Thu Nov 07, 2019 8:53 pm Post subject: |
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cellotone wrote:
jamaeolus wrote: |
Is this lens the version with heavy brass with polished chrome? |
Yes, here are the pictures, an early version.
_________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Thu Nov 07, 2019 9:01 pm Post subject: Re: Schneider-Kreuznach Tele-Xenar 7,5cm f3,8, Robot (M26) M |
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cellotone wrote:
Thanks for the info!
That probably would be a 1941, or early 1942 lens.
_________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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jamaeolus
Joined: 19 Mar 2014 Posts: 2927 Location: Eugene
Expire: 2015-08-20
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Posted: Thu Nov 07, 2019 11:25 pm Post subject: |
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jamaeolus wrote:
My AKA version is identical save for the mount. Just a gorgeous lens. I really must get that project finished _________________ photos are moments frozen in time |
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dickb
Joined: 04 Apr 2008 Posts: 821
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Posted: Fri Nov 08, 2019 12:53 pm Post subject: |
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dickb wrote:
To be precise, there are two other Robot mounts, both interrupted thread breechlock mounts, the 31mm diameter Robot Royal mount and a rare 45mm diameter mount Robot used on a few of the last digital cameras they made. I have a modern version of your lens, a 75mm f/3.8 in Robot Royal mount. I now use a 31mm-M39 adapter in a focussing helicoid to give me an extended focus range on my Sony A7. |
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Sciolist
Joined: 29 Mar 2017 Posts: 1445 Location: Scotland
Expire: 2021-04-16
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Posted: Fri Nov 08, 2019 2:11 pm Post subject: |
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Sciolist wrote:
cellotone wrote: |
... an early version.
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They are lovely things though, aren't they? Want one. |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Fri Nov 08, 2019 5:03 pm Post subject: |
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cellotone wrote:
dickb wrote:
Quote: |
To be precise, there are two other Robot mounts, both interrupted thread breechlock mounts, the 31mm diameter Robot Royal mount and a rare 45mm diameter mount Robot used on a few of the last digital cameras they made. I have a modern version of your lens, a 75mm f/3.8 in Robot Royal mount. I now use a 31mm-M39 adapter in a focussing helicoid to give me an extended focus range on my Sony A7. |
Thank you for clarifying these. I use a Robot 26mm to Sony E adapter directly mount to my Sony A7r, the adapter also designed for extra few millimeter extension, so brings the min. focus distance closer. _________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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dickb
Joined: 04 Apr 2008 Posts: 821
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Posted: Fri Nov 08, 2019 7:03 pm Post subject: |
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dickb wrote:
This is what the modern version looks like, it was produced in 2000 according to its Schneider serial number. These exist in both M26 and Robot Royal mount. I don't own any M26 Robot lenses currently, but be careful which type you get when using full frame cameras. I once owned both an M25 (C mount) and Robot Royal version of a 150/4 Tele Xenar, and the C mount vignetted severely on my Sony A7, whereas the Robot Royal lenses of 75mm and up are free from vignetting. Is your M26 7.5cm free from vignetting at infinity focus on full frame? Also, is the aperture wide open at f/3.8? On mine the blades are still visible. I have heard rumors that these could be made to open completely, but I haven't tried that yet. |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Sat Nov 09, 2019 5:38 am Post subject: |
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cellotone wrote:
dickb wrote:
"Is your M26 7.5cm free from vignetting at infinity focus on full frame?"
Slightly vignetting on full frame, I shoot on APS mode. _________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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Sciolist
Joined: 29 Mar 2017 Posts: 1445 Location: Scotland
Expire: 2021-04-16
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Posted: Tue Feb 04, 2020 9:04 am Post subject: |
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Sciolist wrote:
Sciolist wrote: |
They are lovely things though, aren't they? Want one. |
Got one . But it's not here yet .
The options for adapting that I can see are ready made adapters from Kipon and Pixco, the Pixco being about one third cheaper, or fashioning something based on my LTM-Fuji X adapter, as it provides a 28.8 flange focus distance, not too far from the 31mm (I think), for the Robot.
Could you say what you are using cellotone?
Can anyone else chip in?
Thanks. Sooo.. happy . |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Wed Feb 05, 2020 8:04 pm Post subject: |
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cellotone wrote:
Congratulations!
I bought my adapter (to Sony E) on eBay, I had bought first on eBay didn't work, can't focus to infinity. But this one works: : https://www.ebay.com/itm/Robot-Screw-Lens-onto-Sony-E-mount-camera-with-adjustable-focus-CF-work/202770364506?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649.
Enjoy! _________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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Sciolist
Joined: 29 Mar 2017 Posts: 1445 Location: Scotland
Expire: 2021-04-16
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Posted: Wed Feb 05, 2020 8:17 pm Post subject: |
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Sciolist wrote:
Thanks cellotone. Even importing from the U.S.A, it's still cheaper than the Kipon.
Which one couldn't focus to infinity? |
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cellotone
Joined: 13 Apr 2014 Posts: 317 Location: US
Expire: 2020-09-24
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Posted: Thu Feb 06, 2020 2:51 am Post subject: |
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cellotone wrote:
Don't remember the seller, but I remember it says "not sure whether it works with Sony A7R, A7R II..." Price wise was less expensive than the one I bought later. Both were shipped from China. _________________ Nikon D600, Fujifilm X-E1, Sony A7R,
Leica R lenses, C/Y Zeiss lenses |
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Sciolist
Joined: 29 Mar 2017 Posts: 1445 Location: Scotland
Expire: 2021-04-16
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Posted: Thu Feb 06, 2020 9:48 am Post subject: |
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Sciolist wrote:
cellotone wrote: |
Don't remember the seller, but I remember it says "not sure whether it works with Sony A7R, A7R II..." Price wise was less expensive than the one I bought later. Both were shipped from China. |
Thanks. |
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