Thread: Anyone running 2600MM on Esprit 120?
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Old 06-10-2022, 07:02 PM
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Camelopardalis (Dunk)
Drifting from the pole

Camelopardalis is offline 		 
Join Date: Feb 2013
Location: Brisbane
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The back focus of the sensor will be 17.5mm according to ZWO.

Your Esprit will present 55mm of back focus after the flattener.

Not sure how you’re getting such high numbers
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