Can't reach focus with 1600mm pro

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Can't reach focus with 1600mm pro

Postby je2000 » Sat Feb 03, 2018 8:42 pm

Using the included spacers I am only able to reach focus when I include the 0.8X Flattener/Reducer in my imaging train.

SV102T, flattener/reducer, 16.5mm spacer, 11mm spacer from camera, male to male adapter,, ZWO EFW8 and then the ASI1600.

I took out the flattener and replaced that with the 21mm spacer included. Not enough back focus.

Am I doing something wrong or do I need a spacer bigger than 21mm? I'm looking to eliminate the flattener for certain shots.
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