For some lenses I have seen, the sticking was came from the lens
mount, remove the lens mount to see if the aperture is still sticking
(by activate the aperture coupling lever) to locate the actual
problem. If it is from the lens mount, should not be a difficult job.
C.H.Ling
> Stephan VAN DEN ZEGEL wrote:
>
> got a problem with my 180/2,8... the diafragm works ok but is very
> slow to go back to full aperture... no sign of oil or dust on the
> blades... just sticks, taking half a second to come back to full
> aperture...
> what's going on... any cure ?
> Is there a spring somewhere to change ? something to clean like a
> roll-bearing (roulement à billes in french) ?
>
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