Archived posting to the Leica Users Group, 2001/07/21

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Subject: Re: [Leica] Newton's rings
From: "Mike Durling" <durling@widomaker.com>
Date: Sat, 21 Jul 2001 10:48:36 -0400
References: <003801c1119a$e8a44500$0201a8c0@Workgroup>

I think the Newton rings are some sort of interference pattern between the
film and glass when they are almost, but not quite, in contact with each
other.  I think the usual fix is to install some kind of spacer, made from
cardboard or something, to widen the gap.

Mike D

- ----- Original Message -----
From: "Frank Filippone" <red735i@earthlink.net>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Saturday, July 21, 2001 12:09 AM
Subject: RE: [Leica] Newton's rings


> Yes Mike your description is correct.....  I have never had them before,
and
> seeing these weird circular rings was a bit distressing... I thought they
> only happened IF you have contact .... this carrier is basiclly floating
the
> neg..... I think I may need to watch this, and take action if it
> continues.....
>
> Frank Filippone
> red735i@earthlink.net
>
>

Replies: Reply from "Dan Post" <dpost@triad.rr.com> (Re: [Leica] Newton's rings)
Reply from rabun@dellepro.com (Re: [Leica] Newton's rings)
In reply to: Message from "Frank Filippone" <red735i@earthlink.net> (RE: [Leica] Newton's rings)