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How to improve
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20-01-2019, 07:40 AM
kens
(Ken)
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Join Date: Oct 2014
Location: Melbourne, Australia
Posts: 314
Imaging at 650mm FL on an alt-az is always going to be a challenge. Do you have a shorter lens for your camera - say 200mm FL? There are plenty of targets for which that would be an appropriate FL. and you'll be able to expose 3x longer.
kens
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