[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

[APML]: dew removers

To: astro-photo@nightsky.com
Subject: [APML]: dew removers
From: Dale Ireland <direland@drdale.com>
Date: Fri, 17 Jul 1998 10:46:08 -0700
Reply-To: astro-photo@nightsky.com
Sender: owner-astro-photo@nightsky.com

The Astro-Photography Mailing List
------------------------------------

Hello
Does a dew remover compromise the performance of a refractor? I am
wondering if having a heating element wrapped around the objective lens
causes any perceptible distortion due to temperature variations in the
glass from edge to center.
Dale


Dale Ireland  47.7N 122.7W
Astronomy Page http://www.drdale.com
Comets, Eclipses, Photography, Fabrications

Follow-Ups:
- Re: [APML]: dew removers
  - From: Jerry Lodriguss <jml@astropix.com>
- Re: [APML]: dew removers
  - From: mark.kaye@sympatico.ca

Prev by Author: [APML]: AP questions
Next by Author: [APML]: coefficient of expansion
Prev by thread: Re: [APML]: Developer Problems
Next by thread: Re: [APML]: dew removers
Index(es):
- Author
- Thread