Archived posting to the Leica Users Group, 2008/01/02

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Subject: [Leica] Thumbs down for Lens Pen!
From: grduprey at mchsi.com (grduprey@mchsi.com)
Date: Wed Jan 2 05:54:41 2008

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 
> 
> 
> 
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Replies: Reply from jsmith342 at gmail.com (Jeffery Smith) ([Leica] Thumbs down for Lens Pen!)