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Old 14-10-2011, 09:56 AM
avandonk's Avatar

avandonk is offline
Join Date: Aug 2005
Location: Melbourne
Posts: 4,786
Greg it is a moot point what can and cannot be achieved with this astrograph and sensor. I feel confident enough that the PL16803 and RH200 with 50mm square filters will give me a field that is of high enough quality to make large mosaics relatively quickly. The edges can be used for alignment and then discarded or averaged.

Trimming the entrance aperture is also an option to increase the 'perfect' field. There is enough excess speed to make this practical. There will be an optimum aperture to compromise for all elements of the image train.

My best guess is the system would be equivalent to a 150mm+ diameter FSQ.

Only by actually doing this will we know for sure. All the rest is conjecture.

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