[pure-silver] Re: Cleaning lenses was: RE: Re: Cleaning picture frame glass
- From: "Breukel, C. \(HKG\)" <C.Breukel@xxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 19 Apr 2006 11:11:34 +0200
> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-
> bounce@xxxxxxxxxxxxx] On Behalf Of Daniel Irvin
> >Exactly my experience when I clean older lenses with isopropanol, it
> takes
> many "passes" to get rid of the grease.
>
> >What would you advise as a better solution?
>
> I worked for many years for a lens manufacturer and we used denatured
> alcohol mixed 50:50 with ether. This cleaned well and evaporated
quickly.
>
..Thanks for the tip, Daniel, I'll give it a try: I have this older 180
mm Symmar, the lens is clean inside , no haze, as I have seen with other
symmars, but the front element has this bluuish mottled apperance (when
looking at an angle), I could not clean it with isoprpanol, I fear it
might be the coating. I wonder if it would show in a photograph. I had
not ahd the opportunity to use the lens, still have to obtain or make a
lens board
(anybody has a spare Linhof Technika III lens board, size 1?..;-)...)
Best,
Cor
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