[Leica] Thumbs down for Lens Pen!

[jsmith342 at gmail.com (Jeffery Smith)]

The sebum from skin does seem to leave a "lasting impression" if not
removed.

I have avoided the Windex type of cleaners that have acetic acid or ammonia
in them. Commercial glass cleaners are really made for removing *everything*
from glass except the glass itself.

Jeffery

On Jan 2, 2008 7:54 AM, <grduprey@mchsi.com> wrote:

> I beleive that over time the skin oils will etch the coatings though, so
> you need to clean it off.
>
> Gene
>
> -------------- Original message from "Vick Ko" <vick.ko@sympatico.ca>:
> --------------
>
>
> > Politely speaking, it isn't going to affect your images.
> >
> > It will affect your bench MTF testing, in comparing to a pristine
> factory
> > standard.
> >
> > I've always like clean glass, and have had to balance off the risk of
> > putting cleaning marks on the glass, versus cleaning off fingerprint
> grease.
> > It does sometimes take a bit of a solvent to get it all off, and Windex
> > hasn't ever failed me.
> >
> > Good luck, and be gentle.
> >
> > Vick
> >
> >
> > >From: G Medina
> > >Reply-To: Leica Users Group
> > >To: Leica Users Group
> > >Subject: Re: [Leica] Thumbs down for Lens Pen!
> > >Date: Tue, 1 Jan 2008 20:42:57 -0800 (PST)
> > >
> > >
> > >I don't recommend anyone use a pen light with their
> > >precious lenses if they're in anyway obsessive. You
> > >won't like what you see! Am I being obssesive about my
> > >lens, or should I order some ROR and a new microfibre
> > >cloth from BH photo? Will it affect picture quality is
> > >what I'm asking?
> > >
> > >Thanks,
> > >G Medina
> >
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



-- 
Jeffery L. Smith
New Orleans, LA