Mike Deep
Joined: 25 Oct 2008
Posts: 316
Location: Upstate New York
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 Posted: Wed May 25, 2011 7:24 pm Post subject: Super Takumar 50/1.4 Aperture Slop |
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Mike Deep wrote:
A while back I found an 8-element version Super Tak 50/1.4 for peanuts. It has a bit of a problem: The focus ring seems to grab the aperture blades. When you turn the focus ring, the aperture slips about 1/3 of a stop. There is no oil on the blades.
Any ideas on the cause or solution to this?
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Rocket Launch Photography
Olympus: 24/2.8 MC, 28/3.5, 28/2.8 MC, 35/2.8, 50/3.5, 50/1.8, 50/1.4 MC, 35-70/3.6, 75-150/4
Nikon: C 24/2.8, AI-S 28/2.8, K 35/2.8, F 55/3.5, F 105/2.5, F 135/2.8, F 200/4, No. 5T
Pentax: 28/3.5, 35/3.5, 50/1.4 (v1), 50/1.4 (v2), M 50/1.4, SMC 55/1.8, 105/2.8, SMC 135/3.5, 150/4
Tamron: SP 17/3.5 151B, 135/2.8 T-135, SP 300/2.8 60B, SP 35-80/2.8-3.8 01A, 80-210/3.8-4 103A, SP 1.4x TC 140F, SP 2x TC 01F
Vivitar: 24/2 (Kino), 28/2 (Kino), 50/1.4 (Cosina), S1 90/2.5 (Tokina), S1 28-80/2.8-3.5 (Kino), 70-150/3.8 (Kino), S1 70-210/3.5 (Kino), 2x Macro TC
Etc: Yashica 3.5cm/2.8, Fujinon 50/1.4, Yashica ML 50/1.4, Tomioka Yashinon 55/1.2, Mamiya/Sekor 55/1.7, Sigma 90/2.8
That's a lot of 50s. |
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