Thread: RH200 Images
View Single Post
  #17  
Old 05-12-2011, 11:52 PM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,484
Quote:
Originally Posted by gregbradley View Post
You know what I mean, hermetically sealed and not needing desiccant

Greg.
Well...actually no, I don't know what you mean.

Any CCD camera that doesn't ice up on first use is "hermetically" sealed....sort of proof really.

Filling the chamber with *dry* nitrogen, argon or any noble gas will also work.

Air will do as well....as long as it's *dry*. Soggy Argon doesn't work

Hence the dessicant plugs SBIG use.

STX's uniquely also have a purge valve, for filling whatever gas takes your fancy, *and* a dessicant cylinder.

The point being.....*dryness* ...OK I've labored it!

Moisture is the problem, not the gas.
Reply With Quote