themoleman342
Joined: 21 Oct 2007
Posts: 2190
Location: East Coast (CT), U.S.A.
Expire: 2013-01-24
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 Posted: Mon Feb 03, 2014 5:00 pm Post subject: Jupiter 12 m39 mounting issue |
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themoleman342 wrote:
This isn't actually a repair type question. I was curious if others have had this experience. I recently acquired an m39 J12 made in the mid 50s. Nice copy expect it doesn't align properly at the top. The marker is about 75degrees short of it. This is tested on 5 separate m39 bodies which are known to be good. I have J8s, other J12s, J3s, J11s, I61s, I50s, I22s, etc and they are all fine on these bodies.
I don't really get it...Did KMZ make a batch with the mount being incorrectly threaded? Anyone else have one with this issue? |
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visualopsins
Joined: 05 Mar 2009
Posts: 10539
Location: California
Expire: 2025-04-11
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| Posted: Mon Feb 03, 2014 5:16 pm Post subject: |
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visualopsins wrote:
Incorrect alignment of helical threads in my 500/4.5 caused that...could not quite get infinity...now they are aligned, and lens focuses slightly past infinity, as designed.
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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 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 (51BB), 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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