Re: [APML] I THINK I UNDERSTAND CURVES

["Eddie Guscott" <eddie.guscott@blueyonder.co.uk>]

Matt, thanks for the encouraging comments.

If I boost the green channel anymore, the central trapezium region seems to
saturate (gets
very very bright and washed out).

Whats does getting into "AV" mean?

The Bok Globules are actually proto planetary dust specs on these slides.
It's a set of slides that
are all mostly badly focussed and badly tracked from my first forray into
film photography and
I keep them next to my scanner, so they are always being scanned (in
different ways) to
help me learn more about scanning/PS etc.. and they are therefore generally
abused.
(I did however note your comment the other day about anti static lens
brushes and lab gloves).

Thanks again for your encouragement.

Eddie Guscott

PS. The M42 shot was a 12 minute exposure on E200 / 300mm f4 newtonian
reflector with
no guiding or coma corrector (I'm working on this!!)
----- Original Message -----
From: "Matt BenDaniel" <matt@starmatt.com>
To: <astro-photo@seds.org>
Sent: Tuesday, May 21, 2002 11:06 PM
Subject: Re: [APML] I THINK I UNDERSTAND CURVES


> Eddie,
>
> The curves look good. I'd boost the green channel a bit. (Yes, that is the
> most difficult channel to curve)
>
> It would benefit from star shaping, but you might hold off on that until
> you get more experience with PS.
>
> Later on if you get into AV, you can get the Running Man (one of my
> favorites) to show up better.
>
> I think you discovered some new Bok globules! <g>
>
> Overall excellent progress. Keep going!
>
> Matt
>
> At 05:59 PM 5/21/2002, Eddie Guscott wrote:
> >
> >As most of you know, I'm new to astrphotography with film but very
> >captivated by it.
> >
> >It's just trying to understand PS and curves etc..
> >
> >I've spent the last two days reading and re-reading Matt Ben Daniel's
> >article on curves and finally
> >think I got it licked.
> >
> >I've uploaded a raw image I took a few months back (I know it's not
> >focussed or tracked properly and the vignetting
> >needs looking at) to see what I could do with curves. I've never got even
> >a half decent result until now.
> >
> >I would appreciate any comments on them (apart from the faults that I've
> >mentioned above) to know
> >if I'm finally getting somewhere with curves.
> >
> >(Alan, if you're reading and the comments are kind, I'll let you know
what
> >I did).
> >
> >The raw scanned image is at
> >:
<http://www.astropics.co.uk/m42raw.jpg>http://www.astropics.co.uk/m42raw.jpg
> >
> >The processed image is
> >at:
>
><http://www.astropics.co.uk/m42pr.jpg>http://www.astropics.co.uk/m42pr.jpg
> >
> >I also tried a colour range mask (per Jerry Lodriguss web site article)
> >and a little digital unsharp masking.
> >
> >Appreciate any constructive criticism - am I starting down the right path
> >or did I make a wrong
> >turn somewhere?
> >
> >Thanks
> >
> >Eddie Guscott
>
> --
> Matt BenDaniel
> matt@starmatt.com
> http://starmatt.com
>
>
> --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>              Unsubscribe at <majordomo@seds.org>


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>