on 4/13/02 12:06 PM, Gary Edwards at garyetx@xxxxxxxxx wrote:
I guess that I hadn't had occasion to use my relatively recently-acquired
Zuiko 100 mm f/2 lens on the black OM-4T - until now. That -4T does not
like that lens. Every time the shutter is released, the mirror comes up
part way, the viewfinder goes dark, and . . . . nothing else happens. Until
I bump the DOF preview button, then the mirror goes up all the way and the
shutter trips. On occasion, the camera will function properly if the
aperture is set to f/2. It fails every time at f/2.8 or smaller.
I tried the 100/2 on six other bodies (including an older, champagne -4T) -
no problem, at f/2, f/8, or f/22. I tried every other lens that I have on
the black OM-4T - no problem. That test series included a Zuiko 180/2.8, a
Sigma 70-210/2.8, and a Tamron 400/4, all of which have presumably
comparable diaphragm mass, etc. The 100/2 does have the stiffest feeling
aperture linkage of all of the lenses I have on hand (16).
So, I don't know which unit needs fixing - camera aperture drive or lens
diaphragm? It looks like I'll have to send both off to John, unless someone
has an idea of where the problem is.
> Gary Edwards
I think it is the lens. Getting the lens fixed will you allow you to
continue to use the rest of your equipment while it is gone. If it is
still a problem when you get it back you will know for sure that it
is time for a tune up for your camera.
--
Winsor Crosby
Long Beach, California
?
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|