|Posted: Thu Aug 12, 2010 10:02 am Post subject:
|On camera end of lens in addition to long pin that operates diaphragm is another tiny pin; depress the tiny pin, the auto-man switch can move to man. Then while looking at diaphragm, slowly at first, stopping immediately if resistance is felt or diaphragm is seen to have folding problem, operate aperture ring full close to full open to work the diaphragm; blades may have only oil on them, the working may redistribute and thin oil blockage enough for proper opening. If stopped immediately because blades begin to deform, or working does not redistribute oil enough to restore full range, then disassembly and/or cleaning in in order.
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Canon 5Dc, Spotmatics II, F, ESII
M42 Asahi Optical Co., Lenses: S-M-C Takumars 1:4.5/20 & 1:2/35, SMC Takumar 1:1.4/50, S-M-C Takumars 1:1.8/85, 1:135/2.5 (II), 1:4/200, 1:4.5/500, & S-M-C Macro-Takumar 1:4/100