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Old 13-10-2015, 12:05 AM
glend (Glen)
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glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 6,161
I've been constantly shooting at ISO 800 with setpoint at 0C on warm nights and -5C on cooler nights. Both Rchesire and myself have compared 5 min darks shot at those temps and they are identical to bias/offset frames at 1/4000th of a sec. Why ISO 800, because Craig Stark did some testing and recommended it.

I have no problem imaging at f5 with the newt or the mak-newt, but at f8 with the RC it seems to take forever to get the same luminance, and that highlights all the little guiding issues I never worried about at f5.
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