M17

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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FranK Sky Ghost
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M17

Post by FranK Sky Ghost »

L-RGB

L 160 min
R 30 min
G 30 min
B 30 min
all frames bin 1x1

R.C. 14" f/8 + SBIG STL11000
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Tachyon
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Post by Tachyon »

Wicked!!
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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zackae
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Post by zackae »

Your sky over at Italy must be a hell lot better than what we have here.
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JJLoke
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Post by JJLoke »

oh boy! [smilie=admire.gif]

you using a Ritchey Chretien telescope ? RC trade coma with astigmatism
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FranK Sky Ghost
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Post by FranK Sky Ghost »

My R.C. 14" f/8 carbon truss is provvided with field corrector and the field is flat, I don't understand what you mean. Professional R.C. telescope + feld corrector give flat-fields as well as a good refractor.
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