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ettin
Joined: 26 Mar 2009 Posts: 2
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Posted: Thu Mar 26, 2009 10:13 pm Post subject: Navitar, Computar, Edmund? |
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ettin wrote:
I was wondering if anyone had any experience with these companies lenses?
Do i run the risk of getting noticeably differing image qualities from mixing companies, like if i got a 25mm from navitar and a 50mm from edmund? |
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mkleywegt
Joined: 29 Sep 2008 Posts: 142 Location: netherlands
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Posted: Thu Mar 26, 2009 10:26 pm Post subject: |
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mkleywegt wrote:
Hi,
Welcome.
Are this cine lenses? _________________ Optics specialist at:
https://fotohandeldelfshaven.nl
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kds315*
Joined: 12 Mar 2008 Posts: 16662 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Thu Mar 26, 2009 10:40 pm Post subject: |
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kds315* wrote:
No, not all of them.
Edmund? You mean Edmund Optics?
Glass types and coating may be (will be) different, so expect variations of course... _________________ 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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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Thu Mar 26, 2009 11:00 pm Post subject: |
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luisalegria wrote:
Navitar was a brand used by Elgeet Co., a late member of the Rochester NY optical/photo industry cluster (Kodak, Wollensak, Graflex, Ilex, Bausch&Lomb, etc.)
Later a successor company to Elgeet adopted "Navitar" as the company name, much like Nippon Kogaku became Nikon.
Elgeet/Navitar avoided the small-format still-camera market, but produced pretty much everything else, cine lenses, large format, portrait-camera, projection, military optics, etc.
I have an absolutely lovely 10"(250mm)/4.5 Elgeet Navitar that seems to have come out of a Beattie-Coleman portrait camera. I mounted it on bellows.
http://forum.mflenses.com/elgeet-navitar-10-4-5-on-exakta-bellows-t7500,highlight,elgeet+navitar.html _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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ettin
Joined: 26 Mar 2009 Posts: 2
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Posted: Thu Mar 26, 2009 11:34 pm Post subject: |
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ettin wrote:
They're not cine lenses per say, they're megapixel c-mounts meant for machine vision cameras, like the SI-2k and Scarlet, although there are many different production quality MVC's out there besides those two.
yes, edmund as in edmund optics. |
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visualopsins
Joined: 05 Mar 2009 Posts: 11053 Location: California
Expire: 2025-04-11
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Posted: Thu Mar 26, 2009 11:56 pm Post subject: C-mount lenses for machine vision |
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visualopsins wrote:
some cover 1" CCD, enough for crop sensor, not enough for ff; depending on lens (and cost) might only cover 1/3" CCD; okay for macro with bellows/extension tubes, but infinity circle too small.
in terms of quality, based on current offerings, Edmund can be far-ahead first, then Navitar, then Computar. Navitar & Computar produce lenses for the security ccd cameras; Edmund produce machine-vision lenses, for scientific purposes.
each company has website, with lens specs, etc.. _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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