Re: [APML]: dew removers

[Bill Franke <bfranke@ipa.net>]

The Astro-Photography Mailing List
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At 10:46 AM 7/17/98 -0700, you wrote:
>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,

 I use the Kendrick system on my AP 6" EDF, and my 80 mm guide scope. It
will not effect your image in visual, photographic, or CCD use. I "never
leave home without it". It is one fine piece of equipment, I always use it,
even when I don't expect any dew.

Regards,


Bill Franke
Little Rock, AR
Tailgate Astro Pix Web page:
http://users.ipa.net/~bfranke