Re: [APML] M35 (exposure times) + experiment

["Brian Larmay" <astrobri@ameritech.net>]

Hey guys, after reading this thread for awhile, I was wondering if you guys
wanted to compare raw scans.
Ill post two later whe I get home from work just so that you can see what I
get as far as an exposure of 7- 12 mins at f/4 using E200 and provia 400F.
Yall can edit them and post your results..I hope even to learn some
techniques that I might not have thought of to apply to my work.

Just one question before I post these though....
Should I post these as tiffs or high res jpegs

These will be downsized of course and are allready scanned at 3600dpi.

Brian


> Roland writes:
> > I wonder if some of it's my scanner...
>
>  Hey Roland... my guess is *transparency* plays a huge role in resolving
power
> vs. exposure time. The night I got my NA nebula wide field, transparency
was
> simply as good as gets here in the oft hazy GA skies. The seeing was
sub-arc
> second most of the night, too. Perfect diffraction rings in my 8" SCT with
a
> 5mm reticle EP... shooting from 4700' helps the cause as well... the air
*is* a
> little thinner up there at Brasstown Bald!
>
>  Geoff
>
> --
> http://home.att.net/~astropix/
>
>
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