On 1/23/2022 1:13 PM, John Hermanson wrote:
Sometimes it's just some oily in the rear coupling rings.
What the Master says. 😁 First thing with any OM lens with aperture trouble is to take off the mount and see that all is
well with the rings and spring.
Other times, oil
has migrated out of the focus grease into the blade area. Yes, it can be
fixed.
On Sun, Jan 23, 2022 at 4:11 PM Wayne Shumaker <om3ti@xxxxxxxx> wrote:
An old message about the 50mm 1.8 aperture being sticky. I now have a 50mm
1.8 in the 5,600,000 range and it has sticky blades. Is this serviceable? I
have other 50's that are fine.
A thread from 9/1/2011 Moose mentions helical grease on some versions
being the problem.
Same thing John refers to above. Grease breaks down, releasing oil component, which slithers along surfaces and ends up
on the aperture blades.
I guess it was not necessarily fixed with later SNs.
As I recall, it didn't happen before the MC designated ones, was common with those, then mostly disappeared early in the
MiJ series. I did have one early MiJ with slow blades, but nothing later. I think our assumption was that grease was
changed, Oly didn't become aware of the problem for some time, as it takes a while to show up, then corrected it.
Open Moose
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What if the Hokey Pokey *IS* what it's all about?
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