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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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 Posted: Sun Nov 21, 2010 11:36 am Post subject: Unknown Kodak folding camera lens |
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stingOM wrote:
Just bought this lens from the infamous "Rocky Camera". I must be crazy, but I took a chance as it is only a few quid. It might make a nice soft focus lens on my G1 + Zuiko telescopic auto tube.
http://www.alanwood.net/photography/olympus/telescopic-auto-tube.html
I can't find any info on this lens. Is it from a vest pocket folding camera or Brownie?
There seem to be some interest in adapting these lenses here:
http://forum.mflenses.com/can-a-kodak-folding-brownie-be-adapted-to-eos-t13292.html
Thx!  |
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woodrim
Joined: 14 Jan 2010
Posts: 4060
Location: Charleston
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| Posted: Sun Nov 21, 2010 5:10 pm Post subject: |
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woodrim wrote:
Yours looks maybe a couple of years older than mine if I had to guess. Looks like they printed everything they could think of on that lens.
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Regards,
Woodrim |
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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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| Posted: Sun Nov 21, 2010 5:14 pm Post subject: |
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stingOM wrote:
Hi Woodrim,
Thanks for reply. Yeah it looks very old indeed. Rusty and dirty. Is the aperture regulated by the lever on the side? What about the shutter? Can it set to B? The lens looks non-coated, so must produce serious amount flare.
I can only hope that Keith Rock is not up to his old tricks again. |
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woodrim
Joined: 14 Jan 2010
Posts: 4060
Location: Charleston
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| Posted: Sun Nov 21, 2010 5:25 pm Post subject: |
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woodrim wrote:
The aperture is set by the lever at the bottom. You will see that mine is set at f/32 and yours somewhere between f/8 and f/16. The shutter is set at the top where mine is on 1/50 and your is on 1/25. The lever sticking out the side is the shutter release. Yes, you would set it to B so you can use your camera shutter while keeping your finger depressed on the lens shutter release.
I bought mine over 30 years ago for $10 - an antique then. I thought it might be fun to run some film through it, but never did.
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Woodrim |
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Sun Nov 21, 2010 6:25 pm Post subject: |
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luisalegria wrote:
Looks like the lens is probably a "Rapid Rectilinear" - 4 elements in 2 groups; typical aperture on these was f/8, in the American system on these shutters its marked as "4". You may or may not find a "Bausch&Lomb" marking on the lens rim. This would have been one of the higher-specification lenses on the Kodaks.
I have a collection of these on different shutters.
The "interesting" lenses from the Vest Pocket Kodak or Brownie would be the meniscus types - 2 elements in one group I think ?
You can get a better idea of what camera it came from by working out the focal length.
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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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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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| Posted: Sun Nov 21, 2010 6:58 pm Post subject: |
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stingOM wrote:
| woodrim wrote: |
The aperture is set by the lever at the bottom. You will see that mine is set at f/32 and yours somewhere between f/8 and f/16. The shutter is set at the top where mine is on 1/50 and your is on 1/25. The lever sticking out the side is the shutter release. Yes, you would set it to B so you can use your camera shutter while keeping your finger depressed on the lens shutter release.
I bought mine over 30 years ago for $10 - an antique then. I thought it might be fun to run some film through it, but never did. |
That was very helpful. Thx Woodrim!
| luisalegria wrote: |
Looks like the lens is probably a "Rapid Rectilinear" - 4 elements in 2 groups; typical aperture on these was f/8, in the American system on these shutters its marked as "4". You may or may not find a "Bausch&Lomb" marking on the lens rim. This would have been one of the higher-specification lenses on the Kodaks.
I have a collection of these on different shutters.
The "interesting" lenses from the Vest Pocket Kodak or Brownie would be the meniscus types - 2 elements in one group I think ?
You can get a better idea of what camera it came from by working out the focal length. |
Hi luisalegria,
Interesting. If what you are saying is true then I am going to have lots of fun with this lens as a soft focus lens:
http://forum.manualfocus.org/viewtopic.php?id=8778
http://galactinus.net/vilva/retro/eos350d_rr.html
http://galactinus.net/vilva/retro/eos350d_rr2.html
http://galactinus.net/vilva/retro/eos350d_meniscus.html 
Seems to be related to the Brownie:
http://mconnealy.com/vintagecameras/brownie/
Thanks
Si
Last edited by stingOM on Sun Nov 21, 2010 7:24 pm; edited 1 time in total |
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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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| Posted: Sun Nov 21, 2010 7:04 pm Post subject: |
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stingOM wrote:
Thanks to the cues, I found it 
http://vpk.staff.shef.ac.uk/page6.html
http://vpk.staff.shef.ac.uk/
http://www.cosmonet.org/camera/vpk_slr_e.html
The strange thing is that my copy stops down to f64 
Turns out someone in this forum already has one similar:
http://forum.mflenses.com/1910-vest-pocket-kodak-strobist-studio-portrait-shoot-t33954.html |
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vilva
Joined: 04 Mar 2007
Posts: 785
Location: Porvoo/Borgå, Finland
Expire: 2015-05-27
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| Posted: Sun Nov 21, 2010 8:48 pm Post subject: |
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vilva wrote:
| stingOM wrote: |
| The strange thing is that my copy stops down to f64 |
That's according to the old U.S. f-scale which was based on the aperture area instead of the aperture diameter. So U.S.f4 -> f8 now, f8 -> f11, f16 = f16, f32 -> f22, and f64 -> f32. In a way that old scale was easier for lay people as the ratio of two f-values equaled the ratio between the corresponding exposure times, i.e., going from f8 to f16 required doubling the exposure time, not quadrupling as it does today. Sunny Sixteen was Sunny Sixteen even then.
Veijo
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Mainly Schneider-Kreuznach Radionar (1938), VPK Meniscus Achromat (1915), TTH Cooke Anastigmat (1917), TTH Cooke Aviar (1937), Goerz Dopp-Anastigmat III Dagor (1912), Voigländer Heliar (1928) or Aldis Uno Series III (1903 design) mounted on EOS 5D or EOS 350D |
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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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| Posted: Sun Nov 21, 2010 9:53 pm Post subject: |
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stingOM wrote:
| vilva wrote: |
| stingOM wrote: |
| The strange thing is that my copy stops down to f64 |
That's according to the old U.S. f-scale which was based on the aperture area instead of the aperture diameter. So U.S.f4 -> f8 now, f8 -> f11, f16 = f16, f32 -> f22, and f64 -> f32. In a way that old scale was easier for lay people as the ratio of two f-values equaled the ratio between the corresponding exposure times, i.e., going from f8 to f16 required doubling the exposure time, not quadrupling as it does today. Sunny Sixteen was Sunny Sixteen even then.
Veijo |
Thanks Veijo. Each you guys comment on the lens, I see something new. It is amazing what knowledge can do for you. |
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