From: "Christoph Bosshard" <chboss@hispeed.ch>
Date: November 27, 2007 1:47:48 AM MST
To: Astro_IIDC@yahoogroups.com
Subject: Re: Mars Fri Nov 23
Hi Duane
Thanks for your comment.
Can you point me to some detailed sources regarding stretching the
curves? Would you do this in IIDC or in Photoshop?
Hopefully there will be more good material to work with in the comming
weeks. I am still doing some changes to my equipment at the moment to
be well prepared. :-)
I will certainly post the results to get some more tips on how to
improve. I think it is a great way of learning.
regards
Chris
Hi Chris,
Thanks for the feedback. I think that left right alignment is
actually a bit of bubbling (disk
size due to atmospheric refraction) but reprocessing may allow me to
get a better pick on
the photos that are accepted. I rather loath picking them by hand,
but it is another option.
Nice shot too. I always figure that if I can tell which side of Mars
is showing that it was
worth while night. It looks to me like you have the Mare Serinum side.
There's a little bit of posterization on your image that can be
avoided using curves to stretch the area in the histogram that
contains Mars' data before doing too much
sharpening or other processing.
Keep shooting and sharing. I find it really helpful to see what
others are doing.
Tonight, major wind and jetstream issues here. Time to get some sleep :)
Duane