Gueri & Fred's astronomy

 

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Orion in H-Alpha

 

Lens : Nikkor 50 mm 1.4 @ 2

Focal length :50 mm 

Film : TP 2415 H

Exposure : 1 H 30 min

Filter : H-alpha

Date : December 2001

 

All pictures are copyright Frederic Pertuisot and may not be reproduced without permission