Re: [APML] Baby steps

["bert katzung" <katzung1@home.com>]

Hi Brian:
I put my Kendrick dew heater just behind the extended dew cap of my A-P 130
f6. That puts it almost directly over the lens cell. Running at the minimum
power level that prevents fogging, I don't think it effects the image. Of
course, I'm not operating at 1.2 arc sec seeing either, so maybe I'm not as
critical as some might be. At least I don't detect any difference in images
made this way from images made on dry nights with no dew zapping.
Bert

Bert Katzung
katzung1@home.com
www.astronomy-images.com

----- Original Message -----
From: "Brian Roth" <broth@heathers.stdio.com>
To: <astro-photo@seds.org>
Sent: Sunday, 30 September, 2001 6:36 PM
Subject: [APML] Baby steps


> Hello all,
>
>
>     Well I am getting closer to that fateful day when I open the shutter
> for the first time. I went out tonight on a dry run under the full moon
> and the ST4 has been guiding the scope for about an hour with 1's and
> 2's. I used a polar scope for the first time on the G11 tonight and I
> couldn't beleive how close I got. Starting a drift align after using the
> polar scope showed no visable movement. Probably luck for sure.
>
>   I have a question on dewing. What is the best setup for fighting dew
> on a refractor and where is the best placement for the heaters. Does the
> heat effect imaging?
>
> Brian.
>



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