(meteorobs) IR Camera is up. -Important notes....

[Chris Peterson]

With your camera lens, any object beyond a few hundred feet is at infinity. 
No telescope on Earth can distinguish between the focus of the Moon and of 
stars. I recommend focusing on Venus, since it's high and bright now. Your 
eye/brain will do a better job of determining the best focus if you use a 
point source rather than an extended object like the Moon. And of course, if 
you have an autoiris make sure it is all the way open, so you have the 
smallest possible depth of focus.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message ----- 
From: "stange" <stange34 at sbcglobal.net>
To: <meteorobs at meteorobs.org>
Sent: Wednesday, December 10, 2008 10:03 PM
Subject: (meteorobs) IR Camera is up. -Important notes....


> a) Since design is an attempt to determine in what ways fireballs explode,
> focus is NOT on stars in the background. A nearer object was used......The
> Moon.
>
> b) Plate glass window in camera housing is solely to help retain camera
> heating so as not to corrode lens & camera electronics from dew and
> condensation. It has worked well for 1.5 years on my outdoor surveilance
> camera with no downside.
>
> Larry
> YCSentinel