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eggboy
Joined: 20 May 2008 Posts: 190 Location: Western Massachusetts, USA
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Posted: Tue Apr 21, 2015 2:54 am Post subject: 1938 Carl Zeiss Jena Biotar 5.8cm f2 Exakta mount |
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eggboy wrote:
Mostly snapshots taken over the years. Super-heavy nickel over brass construction.
This lens was pretty much useless when I stumbled across it. The lens grease had solidified...but the glass was actually pretty nice...so I spent some time re-greasing the threads. The dis-assembly of these older Zeiss lenses in not for the faint of heart...multiple nesting sleeves...you need to make lots of index marks whilst disassembling, or you will never get it back together!
Beautiful fit and finish on these....the insides are perfectly finished...amazing stuff.
An interesting thing: the diaphragm is 8 blades and dome-shaped, as the rear-most element of the front lens block is VERY close to the front lens element of the rear lens block, so a flat iris would not fit!
Pics of the dis-assembly: http://eggboy.smugmug.com/Other/Pre-war-Zeiss-Biotar-repair/i-pqRmS6W/A
Here's the lens with a Series 6 adapter and old Kodak lens hood....you NEED a shade with these old uncoated lenses:
Typical lens blackening spots:
Ready for action:
Anyway, enough of me blabbing:
Pics taken with this lens. The first two are with a Canon 40D, the rest with a Sony A7. Click to enlarge to 1600px wide!
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_________________ Eugene
Current Fave Lenses:
Nikkor S.C 5cm/1.4 Rangefinder with Amadeo S>M Mount
Carl Zeiss Jena Sonnar 5cm/2 Contax RF c. 1937,
Nikkor-N 28/2 Nikon F mount
Digital Cameras:
Nikon Z 6II, Panasonic GX8
Film Cameras:
Ansco B2 6x9 Box Camera
Bronica S2
Nikon F2
List and a photo or two of my lens herd
Last edited by eggboy on Tue Apr 21, 2015 11:21 am; edited 3 times in total |
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uhoh7
Joined: 24 Nov 2010 Posts: 1300 Location: Idaho, USA
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Posted: Tue Apr 21, 2015 4:04 am Post subject: |
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uhoh7 wrote:
looks great
is this the 58/2? Which mount? TY, congrats! _________________ Making MFlenses safe for the letter *L* |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Tue Apr 21, 2015 9:32 am Post subject: |
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iangreenhalgh1 wrote:
Excellent!
I didn't realise they made Biotars pre-war. I have an early postwar one that I like, renders just like this one. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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eggboy
Joined: 20 May 2008 Posts: 190 Location: Western Massachusetts, USA
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Posted: Tue Apr 21, 2015 10:56 am Post subject: |
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eggboy wrote:
@uhoh7: Thanks! It's an Exakta mount 58/2.
@iangreenhalgh1: the pre-war ones are scarce but not fully rare. They have different, bigger exteriors, and the wacky 8 blade domed iris. I have a post war one, and plan on doing a quick side by side picture set to see how differently they might render.
Eyeballing these 2 Biotars, the left one is early post-war, the right one a 1937 one...and there looks to be a slight difference in the curvature of the front elements: the post war is more curved, and perhaps the post war one has an ever so slightly longer optical assembly...at some point I might measure...
_________________ Eugene
Current Fave Lenses:
Nikkor S.C 5cm/1.4 Rangefinder with Amadeo S>M Mount
Carl Zeiss Jena Sonnar 5cm/2 Contax RF c. 1937,
Nikkor-N 28/2 Nikon F mount
Digital Cameras:
Nikon Z 6II, Panasonic GX8
Film Cameras:
Ansco B2 6x9 Box Camera
Bronica S2
Nikon F2
List and a photo or two of my lens herd |
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newst
Joined: 21 Oct 2014 Posts: 617 Location: Troy, MI USA
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Posted: Tue Apr 21, 2015 12:12 pm Post subject: |
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newst wrote:
iangreenhalgh1 wrote: |
Excellent!
I didn't realise they made Biotars pre-war. I have an early postwar one that I like, renders just like this one. |
I have a 40mm Biotar in Robot (26mm screw) mount produced in 1938.
Steve _________________ Steve
Just an armadillo on the shoulder of the information superhighway. |
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Lightshow
Joined: 04 Nov 2011 Posts: 3669 Location: Calgary
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Posted: Tue Apr 21, 2015 6:37 pm Post subject: |
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Lightshow wrote:
Cool stuff, I have seen these pop up while looking for a matching 58/2 to go with my 35/2.8 Flek, and 80/2.8 Tessar.
Looking for one like this in Exakta:
http://forum.mflenses.com/czj-biotar-58-2-t-alu-pre-set-t34687.html _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Wed Apr 22, 2015 2:28 am Post subject: |
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iangreenhalgh1 wrote:
I have one exactly like that which I would be willing to sell. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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vroger
Joined: 23 Jul 2014 Posts: 623 Location: MN
Expire: 2016-10-21
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Posted: Wed Apr 22, 2015 3:46 am Post subject: |
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vroger wrote:
Looks like a gem to me! _________________ Roger Lund
Canon EOS-M, Fuji X-E2, Helois 44-0 Vintage, Helois 44-4, Canon FD 50mm 1.8, Jupiter 8 50mm F2, Jupiter 3 50mm F1.5, Canon Serenar 50mm 1.9, Canon 50mm 1.8 LTM, Canon Serenar 85mm F2, Leica 50mm f2 summar, E.Ludwig 50mm F2.9, Rekagon will.wetzlar 50mm 2.8,, a.schacht ulm travenar 135mm F3.5, CZJ 29mm 2.8 Hoya 28mm 2.8, CZ Tessar 50mm 2.8, MIR 37mm. 2.8, Porst Color Reflex MC 50mm 1.7, Vivitar 28mm 2.8 mc cf
http://photography.rogerlund.net
For sale: Canon EOS-M and MF Adapters. |
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