Since elements are cemented into groups, it's possible that chemicals used
in paint stripping might affect the glue holding groups together. Just a
thought.....
----------------------------------------------------
John Hermanson www.zuiko.com
mail: omtech@xxxxxxxxx
Camtech, Olympus Sales & Service since 1977
21 South Lane, Huntington NY 11743-4714
631-424-2121 Turnaround 4-5 weeks
----------------------------------------------------
----- Original Message -----
From: "Jim Brokaw" <jbrokaw@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Friday, December 05, 2003 4:12 AM
Subject: Re: [OM] fisheyes
> on 12/4/03 7:32 PM, andrew fildes at afildes@xxxxxxxxxxxxxx wrote:
>
> >
> > Paint loss or adhesive failure is the most likely reason. I have a
> > couple of other brand lenses where there is glue failure causing
> > white spot (Leica/Minolta 28mm for the CLE is a classic example where
> > almost all have it) - looks fungally alarming but usually has no
> > effect and is stable, although on a fish there may be a flare or
> > reflection issue as a hood is impossible. It's cosmetically annoying
> > too.
> > Ideally, strip the brass ring, remove all paint, repaint and reglue
> > the ring lightly if absolutely necessary. Awkward job given that you
> > are handling a large and rare element.
> > AndrewF
> > (if you drop the element - I'll buy the rest of the lens :)
>
>
> HEY! I've been looking quite vocally, for a long time, for the last two
> elements of the 16/3.5 lens... check the archives. There's a line here, so
> get to the back...!
>
> Actually, this talk of removing elements and repainting makes me a bit
> nervous. Don't fix it if it ain't broke! My 8/2.8 is completely
> disassembled, because I thought the white spots on the 'back field' of the
> front element might be fungus... inspection made me decide 1) they
weren't,
> but probably paint separation instead and 2) the paint -could- be stripped
> and redone, but I wasn't sure I wanted to mess with it. I couldn't
determine
> if paint remover would damage the coatings, nor could I figure out if a
> special black paint would be needed.
>
> FWIW, the 24-Shift had similar (but very tiny, and just a few) white spots
> on the 'back field' of its scratched front element, and when it came back
> from Olympus Japan with a new front element the 'back field' looked like
> black velvet. The spots must be something the develops over time...
>
> And I'm still very serious about the $ub$tantial Finder$ Fee available to
> anyone who can point me to a 'parts lens' or the rear-most two elements
for
> either or both the 16/3.5 and 8/2.8 fisheyes... I need those two-element
> groups to restore the lenses to full vitality and usefulness, which I hope
> to do someday.
> --
>
> Jim Brokaw
> OM-'s of all sorts, and no OM-oney...
>
>
>
>
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