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kymarto
Joined: 30 Nov 2016 Posts: 406 Location: Portland, OR and Milan, Italy
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Posted: Fri Jul 10, 2020 12:25 am Post subject: Beauty Canter-S 45mm f1.9 |
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kymarto wrote:
This lens seems to have come under several names over the few years that it was used on Beauty cameras in the 1950's. It is a 6/4 double gauss using lanthanum elements. It was first named the Canter-S, then the Beauty-S, and finally the Biokor-S on different camera models.
The lens is quite sharp, but suffers from very severe light falloff at f1.9. Bokeh is interesting. At close distances it is quite smooth, but as one moves farther away it takes on a distinct look that is not smooth at all. I've just started to experiment with the lens and looking forward to further walks!
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_________________ Vintage lens aficionado |
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Blazer0ne
Joined: 12 Sep 2018 Posts: 836
Expire: 2024-12-07
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Posted: Fri Jul 10, 2020 2:39 am Post subject: |
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Blazer0ne wrote:
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Last edited by Blazer0ne on Tue Feb 22, 2022 4:34 pm; edited 1 time in total |
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jamaeolus
Joined: 19 Mar 2014 Posts: 2964 Location: Eugene
Expire: 2015-08-20
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Posted: Fri Jul 10, 2020 4:10 pm Post subject: |
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jamaeolus wrote:
Now that is what I call crazy bokeh. It might be interesting to try a moving object and panning. _________________ photos are moments frozen in time |
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vivaldibow
Joined: 23 Jun 2018 Posts: 841
Expire: 2021-03-09
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Posted: Fri Jul 10, 2020 6:16 pm Post subject: |
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vivaldibow wrote:
Very nice shots/photos indeed. I am always wondering, to adapt these lenses, how to determine the flange distance to achieve the inifinity focus, and since the flange distance is probably different for each lens (is this true), will you have to use a separate setup for each lens? Thanks for any information. |
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kymarto
Joined: 30 Nov 2016 Posts: 406 Location: Portland, OR and Milan, Italy
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Posted: Sun Aug 02, 2020 12:45 am Post subject: |
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kymarto wrote:
@vivaldibow, The flange distances for these fixed lenses taken from rangefinder cameras do vary, and since there is no formal mount, you end up with various rear configurations to somehow affix to a helicoid. Oftentimes you end up with the rear element hanging way back out of the barrel of what is left of the lens once you manage to extricate it from the body. In practice, I have always found it possible to mount the lens cell on a helicoid and achieve infinity focus. In a few cases I have had to use the thinnest M42 helicoid made, which is 10mm-15.5mm. I have 10mm, 12mm, 15mm and 17mm helicoids (minimum extension) and I've always managed to find one that achieves reasonable infinty to relatively close focus. This is mounting on a Sony A7 series with 18mm body flange distance. _________________ Vintage lens aficionado |
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vivaldibow
Joined: 23 Jun 2018 Posts: 841
Expire: 2021-03-09
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Posted: Sun Aug 02, 2020 4:05 am Post subject: |
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vivaldibow wrote:
kymarto wrote: |
@vivaldibow, The flange distances for these fixed lenses taken from rangefinder cameras do vary, and since there is no formal mount, you end up with various rear configurations to somehow affix to a helicoid. Oftentimes you end up with the rear element hanging way back out of the barrel of what is left of the lens once you manage to extricate it from the body. In practice, I have always found it possible to mount the lens cell on a helicoid and achieve infinity focus. In a few cases I have had to use the thinnest M42 helicoid made, which is 10mm-15.5mm. I have 10mm, 12mm, 15mm and 17mm helicoids (minimum extension) and I've always managed to find one that achieves reasonable infinty to relatively close focus. This is mounting on a Sony A7 series with 18mm body flange distance. |
Thanks very much for the information. So do you have one set of helicoid/adapter for each lens, or
there is one setup which could be used for all lenses? I am thinking, since the back of the lens from
those rangefinders are different, I guess there is probably not a single setup which could work for
all the lenses. |
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kds315*
Joined: 12 Mar 2008 Posts: 16627 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Sun Aug 02, 2020 8:11 am Post subject: |
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kds315* wrote:
nice find Toby! _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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caspert79
Joined: 31 Oct 2010 Posts: 3132 Location: The Netherlands
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Posted: Sun Aug 02, 2020 8:38 am Post subject: |
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caspert79 wrote:
Interesting lens for artistic purposes! |
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kymarto
Joined: 30 Nov 2016 Posts: 406 Location: Portland, OR and Milan, Italy
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Posted: Sun Aug 02, 2020 11:20 am Post subject: |
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kymarto wrote:
vivaldibow wrote: |
kymarto wrote: |
@vivaldibow, The flange distances for these fixed lenses taken from rangefinder cameras do vary, and since there is no formal mount, you end up with various rear configurations to somehow affix to a helicoid. Oftentimes you end up with the rear element hanging way back out of the barrel of what is left of the lens once you manage to extricate it from the body. In practice, I have always found it possible to mount the lens cell on a helicoid and achieve infinity focus. In a few cases I have had to use the thinnest M42 helicoid made, which is 10mm-15.5mm. I have 10mm, 12mm, 15mm and 17mm helicoids (minimum extension) and I've always managed to find one that achieves reasonable infinty to relatively close focus. This is mounting on a Sony A7 series with 18mm body flange distance. |
Thanks very much for the information. So do you have one set of helicoid/adapter for each lens, or
there is one setup which could be used for all lenses? I am thinking, since the back of the lens from
those rangefinders are different, I guess there is probably not a single setup which could work for
all the lenses. |
I would prefer to have a dedicated helicoid for each lens, but since I have a bunch I generally share adapters between them. Since I have mirrorless, and don't use the focusing scale, it doesn't matter if the lens focuses past infinity. I generally use the longest I can get away with so that I have the closest focus possible. My adaptations are generally temporary: I use a lot of pvc electricians tape to secure lenses to rings that I can screw into an M42 helicoid, or if the rear barrel is small enough, I try to cook something up so that I can do a friction fit into the helicoid. At worst (it happens) I have to secure the lens directly to the helicoid with tape. That happens often with fixed rangefinder lenses which need to be as close to the sensor as possible on a very short helicoid. Some I could glue onto rings that would screw into the helicoid, but I am wary of solutions that would be hard to undo. _________________ Vintage lens aficionado |
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vivaldibow
Joined: 23 Jun 2018 Posts: 841
Expire: 2021-03-09
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Posted: Mon Aug 03, 2020 8:13 pm Post subject: |
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vivaldibow wrote:
kymarto wrote: |
vivaldibow wrote: |
kymarto wrote: |
@vivaldibow, The flange distances for these fixed lenses taken from rangefinder cameras do vary, and since there is no formal mount, you end up with various rear configurations to somehow affix to a helicoid. Oftentimes you end up with the rear element hanging way back out of the barrel of what is left of the lens once you manage to extricate it from the body. In practice, I have always found it possible to mount the lens cell on a helicoid and achieve infinity focus. In a few cases I have had to use the thinnest M42 helicoid made, which is 10mm-15.5mm. I have 10mm, 12mm, 15mm and 17mm helicoids (minimum extension) and I've always managed to find one that achieves reasonable infinty to relatively close focus. This is mounting on a Sony A7 series with 18mm body flange distance. |
Thanks very much for the information. So do you have one set of helicoid/adapter for each lens, or
there is one setup which could be used for all lenses? I am thinking, since the back of the lens from
those rangefinders are different, I guess there is probably not a single setup which could work for
all the lenses. |
I would prefer to have a dedicated helicoid for each lens, but since I have a bunch I generally share adapters between them. Since I have mirrorless, and don't use the focusing scale, it doesn't matter if the lens focuses past infinity. I generally use the longest I can get away with so that I have the closest focus possible. My adaptations are generally temporary: I use a lot of pvc electricians tape to secure lenses to rings that I can screw into an M42 helicoid, or if the rear barrel is small enough, I try to cook something up so that I can do a friction fit into the helicoid. At worst (it happens) I have to secure the lens directly to the helicoid with tape. That happens often with fixed rangefinder lenses which need to be as close to the sensor as possible on a very short helicoid. Some I could glue onto rings that would screw into the helicoid, but I am wary of solutions that would be hard to undo. |
Thanks very much for the details. I guess there is no one-size-fit-all solution. But there are ways to make things economic. |
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