| View previous topic :: View next topic |
| Author |
Message |
ettin
Joined: 26 Mar 2009
Posts: 2
|
 Posted: Thu Mar 26, 2009 10:13 pm Post subject: Navitar, Computar, Edmund? |
 |
|
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? |
|
| Back to top |
|
 |
mkleywegt
Joined: 29 Sep 2008
Posts: 142
Location: netherlands
|
| Posted: Thu Mar 26, 2009 10:26 pm Post subject: |
|
|
mkleywegt wrote:
Hi,
Welcome.
Are this cine lenses?
_________________
Optics specialist at:
https://fotohandeldelfshaven.nl
|
|
| Back to top |
|
|
kds315*
Joined: 12 Mar 2008
Posts: 16663
Location: Weinheim, Germany
Expire: 2021-03-09
|
| Posted: Thu Mar 26, 2009 10:40 pm Post subject: |
|
|
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
|
|
| Back to top |
|
|
luisalegria
Joined: 07 Mar 2008
Posts: 6602
Location: San Francisco, USA
Expire: 2018-01-18
|
| Posted: Thu Mar 26, 2009 11:00 pm Post subject: |
|
|
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. |
|
| Back to top |
|
|
ettin
Joined: 26 Mar 2009
Posts: 2
|
| Posted: Thu Mar 26, 2009 11:34 pm Post subject: |
|
|
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. |
|
| Back to top |
|
|
visualopsins
Joined: 05 Mar 2009
Posts: 11053
Location: California
Expire: 2025-04-11
|
| Posted: Thu Mar 26, 2009 11:56 pm Post subject: C-mount lenses for machine vision |
|
|
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)
|
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
