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siudym
Joined: 27 Jun 2015
Posts: 78
Location: Poland
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 Posted: Tue Jun 26, 2018 12:57 pm Post subject: Unknown lens mount, request for recognition |
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siudym wrote:
Long ago in a set with different lenses, there was a modified minolta rokkor 50.1.7 for an unknown mount.
What is the lens mount?
More photos:
https://postimg.cc/gallery/ggzedur6/
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konicamera
Joined: 03 May 2009
Posts: 746
Location: Warsaw, Poland
Expire: 2014-06-14
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| Posted: Tue Jun 26, 2018 1:51 pm Post subject: Re: Unknown lens mount, request for recognition |
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konicamera wrote:
| siudym wrote: |
Long ago in a set with different lenses, there was a modified minolta rokkor 50.1.7 for an unknown mount.
What is the lens mount? |
Czołem! 
Considering the small diameter and the decreased F2F distance (register), I would guess that it's some sort of rangefinder mount (guess is the important word here).
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URL: www.konicafiles.com
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konicamera
Joined: 03 May 2009
Posts: 746
Location: Warsaw, Poland
Expire: 2014-06-14
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| Posted: Tue Jun 26, 2018 1:57 pm Post subject: Re: Unknown lens mount, request for recognition |
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konicamera wrote:
| siudym wrote: |
Long ago in a set with different lenses, there was a modified minolta rokkor 50.1.7 for an unknown mount.
What is the lens mount? |
Now the more I look at it, the more I suspect this is an Exacta mount (the key word here is suspect - some small progress on the road to certainty).
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L'homme s'ennuie du bien, cherche le mieux, trouve le mal, et s'y soummet, crainte du pire. - Duc François-Gaston de Lévis
While it is nice to be important, it's more important to be nice.
URL: www.konicafiles.com
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fuzzywuzzy
Joined: 18 Dec 2010
Posts: 1258
Location: Down East, Canada, eh?
Expire: 2013-11-30
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| Posted: Tue Jun 26, 2018 5:06 pm Post subject: |
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fuzzywuzzy wrote:
It is shaped like Exakta but is too small, and Exakta has a locking pin that I don't see in these pics.
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I welcome C&C, editing my pics and reposting them on the forum is fine.
NEX-F3
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CZJ Sonnar 135/4, Biotar 58/2, Pancolar 50/2, Tessar 50/2.8, Flek 35/2.8, Flek 25/4
Super Takumar 135/2.5, 135/3.5, 100/4 bellows, 50/1.4, 28/3.5
Helios 58/2, 3M-5A 500/8, Mir 20M
Vivitar Series 1 70-210 - - - - - - - - Nikkor 200/4
Rikenon 28/2.8 - - - - - - - - Zeiss 50/1.7 Planar
PB 50/2.4, 135/2.8
Yashica 50/1.9, 28/2.8, 135/2.8
Hexanon 28/3.5, 50/1.4 |
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dickb
Joined: 04 Apr 2008
Posts: 821
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| Posted: Mon Jul 02, 2018 8:20 pm Post subject: |
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dickb wrote:
If I interpret your photos correctly, then the diameter of the mount is 44mm, correct? This list:
https://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
lists mounts by register but also shows their diameter. If the converted lens is made to reach infinity focus, the register of the mount should be 8 to 10mm less than Minolta SR mounts 43.72mm. So maybe the original 4/3 mount (not micro)? |
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