flattener to ccd sensor distance
Hi all,
Does anybody know the optimal distance required between the optics of an ED120 0.85x reducer/corrector to the sensor of a QHY9? I need to get an adapter made locally to fit between the reducer and the filter wheel. And the distance I am not sure of. I will get them to make the adapter adjustable, but I need to roughly know the distance required. I know the distance the sensor is from the edge of the filter wheel and the adapter will be the difference.
The set-up is (or will be): ED120 0.85x reducer/corrector screwed onto focus tube of ED120, custom made adapter (female M48 to male M54), filter wheel, QHY9.
Thanks,
Daniel.
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