> 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) ?
Can be a problem in the linkage as well as sticky blades - I've seen many
clean diaphragms with the problem. Time for a service.
Andrew
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