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rebelstar
Joined: 05 Nov 2014
Posts: 194
Location: Minsk, Belarus
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 Posted: Thu Apr 16, 2015 7:17 pm Post subject: Philips SK "S" 100mm f1.5 |
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rebelstar wrote:
Hi there. Want to share my experience with users who interested in fast projection lenses.
Have no idea for what puproses it's used. From ebay seller found this lens use Petzval optical scheme.
Back diameter is 64mm, my local turner reduced it to 62.5mm, same size as wide amount of projection lens such as Visionar, 35KP, Lomo, Rodenstock and etc.
For my Sony a7 I bought another NEX-m42 adapter, chinese helicoid ring 17-31mm. My metal turner cut from aluminium final part of adapter with 4 holes from the sides and m6 screws to tight any projection lens in it. Already tried 35KP 100 1.8, Visionar 100 1.6, Lomo 90 2.0 - works great!
Back to Philips lens.
Some sample shots I made.
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philslizzy
Joined: 07 Aug 2012
Posts: 4748
Location: Cheshire, England
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| Posted: Thu Apr 16, 2015 7:24 pm Post subject: |
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philslizzy wrote:
Wow, some great shots with that lens. I have a projector lens and the same helical. Perhaps I ought to give it a go.
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kds315*
Joined: 12 Mar 2008
Posts: 16544
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Thu Apr 16, 2015 8:29 pm Post subject: |
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kds315* wrote:
Looks very good to me!!
_________________
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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Lloydy
Joined: 02 Sep 2009
Posts: 7785
Location: Ironbridge. UK.
Expire: 2022-01-01
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| Posted: Fri Apr 17, 2015 12:10 am Post subject: |
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Lloydy wrote:
Excellent, I like that a lot.
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I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
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dan_
Joined: 05 Dec 2012
Posts: 1054
Location: Romania
Expire: 2016-12-19
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| Posted: Fri Apr 17, 2015 12:44 am Post subject: |
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dan_ wrote:
A very nice lens, indeed, but very little documented.
AFAIK, SK comes from "Schnider Kreuznach" and I presume it is a Schnider-made Phillips projection lens. If anybody knows more about SK Phillips lenses it will be nice to share as very little (if any at all) information is available on internet.
Are you sure it is a Petzval optical scheme lens? I've noticed that lately the internet sellers use "Petzval type" as a description for some projection lenses in an improper and abusive manner. Petzval seams to be "en vogue" and sells better.
I'm asking because I have a Phillips SK 90mm f/2, looking very similar with yours, and mine is a Double-Gauss type (I've dismantled mine). |
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kds315*
Joined: 12 Mar 2008
Posts: 16544
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Fri Apr 17, 2015 8:11 am Post subject: |
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kds315* wrote:
I'm with Dan here, I actually doubt that such a modern lens is a "Petzval design"!!
Double Gauss with freestanding lenses (uncemented = heat tolerant) is the current standard.
The lens' drawing reminds me of the Visionar I'm using (often), also a double Gauss scheme.
_________________
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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rebelstar
Joined: 05 Nov 2014
Posts: 194
Location: Minsk, Belarus
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| Posted: Fri Apr 17, 2015 9:11 am Post subject: |
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rebelstar wrote:
I have only ebay seller information "PETZVAL, CINE, 70MM", - it's exact copy from the lot information. Google gives nothing.
Today I found ISCO Optic lenses very familiar with my Philips - overall design, font type - https://www.google.by/search?q=isco+optic&espv=2&biw=1920&bih=895&source=lnms&tbm=isch&sa=X&ei=bc0wVZKuNoq7ygPFoIGwBw&ved=0CAYQ_AUoAQ#tbm=isch&q=isco+kiptar
So I assume this lens made by ISCO for Philips, right?
Went to ISCO Optic website and write an email to their tech support, hope they can give me some useful information. |
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rebelstar
Joined: 05 Nov 2014
Posts: 194
Location: Minsk, Belarus
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| Posted: Fri Apr 17, 2015 9:28 am Post subject: |
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rebelstar wrote:
| dan_ wrote: |
A very nice lens, indeed, but very little documented.
AFAIK, SK comes from "Schnider Kreuznach" and I presume it is a Schnider-made Phillips projection lens. |
You right, just found on ISCO website this http://www.isk-optics.de/index.php?id=37&tx_mininews_pi1[showUid]=5&cHash=ede7e2da72
"About one year ago, the Schneider Group, a global leader in the production of high-precision lenses, took over the operations of ISCO based in Göttingen" |
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Arutemu
Joined: 16 Oct 2014
Posts: 72
Location: US/Japan
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| Posted: Fri May 08, 2015 12:15 pm Post subject: |
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Arutemu wrote:
Really like your shots with it. One question though... No focus ring? How do you focus then -with your feet?
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rebelstar
Joined: 05 Nov 2014
Posts: 194
Location: Minsk, Belarus
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| Posted: Fri May 08, 2015 12:43 pm Post subject: |
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rebelstar wrote:
I have fully functional helicoid on this adapter. You can see black ring with ribbons. It's telescoping from 17 to 31mm, which giving infinity and macro for my 62.5mm projection lenses. You can get such helicoid on eBay. |
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rebelstar
Joined: 05 Nov 2014
Posts: 194
Location: Minsk, Belarus
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| Posted: Mon May 11, 2015 9:36 am Post subject: |
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rebelstar wrote:
Couple of new shots made with Philips lens
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kds315*
Joined: 12 Mar 2008
Posts: 16544
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Mon May 11, 2015 6:57 pm Post subject: |
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kds315* wrote:
Nice!!! Retro look, I like that!
_________________
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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16:9
Joined: 04 Apr 2014
Posts: 302
Location: UK
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| Posted: Wed Nov 08, 2023 12:42 pm Post subject: |
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16:9 wrote:
Definitely not Petzval. SK stands for 'Super Kiptar' - only coincidentally Schneider-Kreuznach. Philips rebranded Isco lenses for several decades.
During some of that time Isco was a standalone company, or at least on sabbatical from their tempestuously on-off relationship with Schneider.
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