Brian,
At 5:18 PM +0000 1/29/02, olympus-digest wrote:
>Date: Wed, 30 Jan 2002 00:11:57 +1300
>From: "Brian Swale" <bj@xxxxxxxxxxxxxxx>
>Subject: [OM] Cleaning lenses
>
>Hello folks,
>
>Can I ask for a bit of advice? (of course)
>
>I just got a lens back from having fungus removed - as much as he could get
>at. The lens is a Mamiya Press 100mm, and the front element is screwed on
>very tight.
>
>The rear lens element lives in a huge cavern surrounded by helicoid threads
>etc.. I noticed that the outside surface is covered in a kind of oily
film that
>you don't see by looking at the lens surface with reflected light, but
if the
>lens is opened up and a light shines through, it is very obvious.
>
>I tried removing this by huffing on the element and wiping with Oly lens
>paper, but that really didn't work. The muck just spread around a bit
more. It
>needs an organic solvent. It's go to go - it surely acts like a
soft-filter and I
>don't want that. The 100 has a reputation of being a sharp lens and that's
>why I bought it - to yield sharp images.