Re: [APML]: dry air vs. nitrogen purge

["Bobby Middleton" <bobbym@unicomp.net>]

The Astro-Photography Mailing List
------------------------------------

Should I suspect that to be the cause of my poor looking
planetary photos on hypered TP? 
Seeing was good that night and I did get  some decent 
color film pics.  
I'm in humid east Texas 
which puts me up in the upper dew points. 
Chuck, you might give me a lot of pointers if you agreed
to check my neg strip. It's nowhere near correct as of now....
 
Bobby Middleton

astropics at: http://home.unicomp.net/~bobbym/astro1.htm


----------
> From: Chuck Vaughn
> 
> Yes, hypered TP will fog at any time and ruin the exposure. Buckling
> is another consideration, mostly for medium format and larger as I
> understand it.
> 
> Chuck <aa6g@aa6g.org>
>