on 6/13/02 9:37 AM, Jochen Schiffler at jochen.schiffler@xxxxxxxxxxx wrote:
> Hi!
>
> Just got my Tokina 80-200 AT-X (about 166,- $US) from german bay.
> I heard of dust inside a lens but how the hell could this happen?
> http://www.1stlight.de/ebay/tokina80200.jpg
>
> The seller told me that he did not open it but mentioned he also bought it
> used (I can return it if I need).
> I'm curious if there's a way the hair(?) got inside WITHOUT opening it
> (maybe through zoom movement)? The glass seems ok and I wasn't able to find
> any other evidence that it has been disassembled. No test shots yet but what
> do you think?
Zoom lenses usually are not fully sealed, and the action of zooming moves
element groups in a way that draws in and out air, and also anything that
might be in that air... I suppose the hair might be drawn in if the lens
were zoomed while unmounted, and then it migrated around during further
use... It can probably be cleaned out, but I suspect the lens will need to
be disassembled to get at it properly.
>
> ...
>
> Damn, no luck for me today! Checked the Zukio 21mm f3,5 (same seller, about
> 215,- $US) again and found that the focussing ring seems a little loose.
> Turning is smooth but it can be shifted slightly against the metal mount
> ring.
Probably can be corrected, under the rubber grip on the focus ring there are
some screws. Perhaps these have loosened slightly. As this is all outside
the lens it would be easier to fix. The rubber ring is usually glued on with
rubber cement type glue, a small screwdriver inserted under the edges will
lift and loosen the rubber.
>
> Man, it took me some time to find this glass here in germany, I would not
> like sending it back again.
> Can this be fixed for little $ or should I return both lenses?
>
> Jochen
The fixes shouldn't cost too much... if the seller will give you some
partial refund that might be easier than trying to find the lenses all over
again...
--
Jim Brokaw
OM-1's, -2's, -4's, (no -3's yet) and no OM-oney...
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