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Re: [APML]: Tri-Color Update

To: charles@jon.cjfny.org
Subject: Re: [APML]: Tri-Color Update
From: "Tom Krajci" <krajcit@det5wg57.barksdale.af.mil>
Date: Thu, 12 Feb 1998 08:07:05 CST
CC: astro-photo@nightsky.com
In-reply-to: <TCPSMTP.18.2.11.-15.42.10.3049495236.799666@jon.cjfny.org>
Organization: United States Air Force
Reply-To: astro-photo@nightsky.com
Sender: owner-astro-photo@nightsky.com


> From:          charles@jon.cjfny.org
 
> I have noticed that the traditional green filter (#58) is not sensitive
> to the OIII emission lines. Has anyone tried other filters to deal with
> this? I would like to avoid using gels, and prefer glass filters. 

I've never done tri-color, but Wallis and Provin's book A Manual of 
Advanced Celestial Photography they discuss this problem and 
recommend some alternate filter combinations.

Hope this helps.

Tom Krajci

Capt Tom Krajci
B-52 Intelligence Officer
"Intelligence:  Ignored in peacetime, blamed in war!"
http://spur.barksdale.af.mil

Follow-Ups:
- Re: [APML]: Tri-Color Update
  - From: Wil Milan <wmilan@airdigital.com>

References:
- [APML]: Tri-Color Update
  - From: charles@jon.cjfny.org

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