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

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: Re: [Leica] Newton's rings
From: rabun@dellepro.com
Date: Sat, 21 Jul 2001 10:08:15 -0500
References: <003801c1119a$e8a44500$0201a8c0@Workgroup> <005501c111f4$39c838c0$74b960d1@alice>

Thats exactly what my 1944 edition of the Leica manual says on pages
153-154. It also shows a masking plate on page 155, actual size, for
tracing.
Pat Rabun

- ----- Original Message -----
From: Mike Durling <durling@widomaker.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Saturday, July 21, 2001 9:48 AM
Subject: Re: [Leica] Newton's rings


> 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
> >
> >
>

In reply to: Message from "Frank Filippone" <red735i@earthlink.net> (RE: [Leica] Newton's rings)
Message from "Mike Durling" <durling@widomaker.com> (Re: [Leica] Newton's rings)