RE: [APML] stacking & adding film images

["Carlos Milovic F." <cmilovic@yahoo.es>]

> I believe a few on this list actually practice this
> particular
> technique.  From what I gather, Provia 400F seems to
> be the film of
> choice for blue; whereas, E200 is preferred for red.
> Combining them
> both, yields an almost ideal astrophotography film. 
> I plan to use
> this technique this year too.

I was thinking on combining these two films in another
way: L = E200*400F and [a,b]= 400F, where * is
"lighten".
These will have all the color information on the
Provia, plus the reflection nebulaes, and all the
emision nebulaes captured with E200. Also, we can use
an Ha filtered E200 shot...
What do you think?


=====
Regards,

Carlos Milovic F.
-------------------------
Astro & Photo - CMF
http://www.astrophoto.vze.com
-------------------------
Visita "AstroFoto", el foro de astrofotografía en español
http://espanol.groups.yahoo.com/group/astrofoto

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