Re: Re [APML] Deep field photo of NGC7000 and Pelican nebula

[Herm <hermperez@worldnet.att.net>]

You have to use dry air or nitrogen gas injections with these setups.. your
NAN deep exposure shows what looks like a bit of film creep near the top
edges.. it will even be worse if you use hypered film.

"TEIVA LEROI" <leroiteiva@minitel.net>  wrote:

>very pointed. I have some big problems with film curling during the 
>exposure. Somebody told me the best camera was the pentax 6x7 but it is 
>too expensive.
>If somebody has an idea against this curling (because the vacuum back is
>too difficult to make)???

Herm
Astropics http://home.att.net/~hermperez

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