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This cropped image taken on July 2nd 2015 is part of a series of experiments in testing and using a guided telescope in order to achieve longer exposures and lower ISOs.


post-33955-0-95898200-1435818967_thumb.j


17 x 1 minute exposures at 800 ISO

10 x 2 minute exposures at 400 ISO

 1 x 8 minute exposure at 100 ISO

11 x dark frames

15 x flat frames

66 x bias/offset frames


Processed in Nebulosity and Photoshop

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nice first guided image

i think you may want to try 300 seconds on that object at iso 800 and say 15 of them :smiley:

happy tracking

Ooh thanks for that tip. That's very helpful...after a year and a half of being restricted to 30 seconds or less at very high ISOs, it's a little strange working out what the ideal exposure for an object is :)

Sent from my iPhone using Tapatalk

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