The front element of the 35mm f/2.0 is held in by a retaining ring that just
screws down. You may have to unscrew the "name" ring (the ring with all the
words/#'s on it) to get to it, but it can be tightened by turning it clockwise
-- there are two notches just for that. There are special tools made for that,
or you can use any number of substitutes -- heavy tweezers, a rubber stopper,
etc -- to turn it tight.
You can also try to unscrew the ring that holds in the rear lens element of the
1.4 and clean the glass inside. If it's really fungus, rub your finger along
the side of your nose to get it oily then rub the glass. Then clean with
tissue dampened with acetone to clean. Be sure you note which side of the rear
element goes out, though! Put a mark on the outer surface with a permanent
marker, then clean it off with acetone once it's back in place.
flowerside@xxxxxxxxxxxx wrote:
> Hi all,
>
> yesterday I finally received two used Zuikos, bought in the USA and shipped
> to a friend of mine who whas there and just about to return to Italy (where I
> live).
>
> Bad news: they seemed *apparently* OK before I realized that the 35/2 "MC"
> had the front lens slightly detached (I can feel it moving if I face the lens
> to the ground and push the front lens upward) and tracks of bad coating on
> the front element, while the 50/1.4 "MC" was colonized by fungus, or at
> least this is what seems to me the small dust grains covering the surface of
> the second inner element and noticeable only if I backlight the lens.
< 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 >
|