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michael129
newbie
Reged: 10/26/09
Posts: 3
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hi folks,
i'm michael from israel,
i need to know how to exposer m42 and not burn the trapezuim,exposers ,time exp,iso, that will be great.
my toys
orion 80ed
eq6 mount
canon 450d
laptop
thanks!!!!
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zerro1
member
Reged: 08/02/09
Posts: 48
Loc: NW
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Lower ISO setting, shorter duration exposures. then stack.
the trap stars are very energetic so they will burn very quickly. Just sample a few at say ISO800 and 1 minute. then sample some at ISO 400 and 3 minutes. Your scope is what will dictate what works for you. Mine is an 8" SCT f/10 + 6.3 reducer. How are you focusing? Focus will give you fits!!
Good Luck
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Gregk
Pooh-Bah
Reged: 11/19/06
Posts: 1450
Loc: Gilbert Arizona
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The way to do it is to have long exposures combined with short...The trap would probably be non burnt by 20/30 seconds ISO 800
SO take darks and lighs of say 4- 8 minutes align combine and stack and stretch those and then do the same with the lights and darks for the shorter exposure Then combine in Photoshop using a Reveal All Mask instruction by Jerry http://www.astropix.com/HTML/J_DIGIT/COMP2.HTM
http://www.astropix.com/HTML/J_DIGIT/LAYMASK.HTM
--------------------
www.azspaceblog.com/
Orion Star Shoot Pro OSC
Oiron Star Shoot II OSC
Celestron Cg-5 ASGT mount
Celestron ED80 Piggy back with william Optics 66mm APO
Celestron 6" SCT Piggy Back with william Optics 66mm APO
Edited by Gregk (11/07/09 07:31 PM)
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