Re: [Leica] Lens Cleaning

["Roland Smith" <roland@dnai.com>]

I am curious.   Isn't the lens coating in someway affected by acetone.
Acetone is very similar to lacquer thinner.

Roland Smith
- ----- Original Message -----
From: "William Gower" <wgower@eco-tec.com>
To: "Leica Users Group" <leica-users@mejac.palo-alto.ca.us>
Sent: Tuesday, June 27, 2000 11:00 PM
Subject: [Leica] Lens Cleaning


> My recipes:
>
> For routine cleaning: 1. compressed air to blow off the dust, followed by,
> 2. a lint free Kimwipe moistened with reagent grade (or better) acetone.
> Acetone cuts the grease off a lens better than anything I've found so far,
> and if done carefully and slowly, leaves no reside (it evaporates off).
>
> (You had better be careful with the acetone, though...like all solvents,
it
> has a propensity to eat plastics.)
>
> I have also used a this recipe: a mixture of 0.1 % Triton-X 100 (a
non-ionic
> surfactant) and de-ionized water. I use this, followed by the acetone
> treatment to take off any residual streaks. Overkill ? Perhaps, but I
> believe it works wonders.
>
>
> For the clean fanatics - As a note: Edmond Scientific Ltd. sells a great
> assortment of lens cleaners and cloths. You can buy large mirofiber cloths
> for a fraction of what they charge in the local camera shop. I
particularly
> like the long handled lint-free "Q-tip" that is great for cleaning old
grimy
> SLR mirrors. I use acetone for this as well.
>
> I have had horrible results with those Kodak papers and lens cleaner. May
as
> well use an sweaty old sock or a coffee spill moistened newspaper IMHO.
>
> my 0.02$....
>
> William
>
>
>
>
>