Thread: Astrotortilla help
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Old 13-11-2014, 01:03 AM
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Amaranthus (Barry)
Thylacinus stargazoculus

Amaranthus is offline 		 
Join Date: Jan 2014
Location: Judbury, Tasmania
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Getting the correct image scale is the key. Then everything falls into place. What is your focal length, pixel size and sensor dimensions?
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