Quote:
Originally Posted by Peter Ward
30 minutes with the AAT? Nah...
Humm let's see, 150 inch AAT, flux collecting area about 67,000 sq inches.
6 inch APO 113 sq inches....so everything else being equal about 592x more flux being gathered by the AAT in the same time.
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Do you include f/ratio as being equivalent Peter?
Regards
Steven