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Originally Posted by drmorbius
I was just curious how much impact a fan has on the viewing experience.
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SPECIAL Limited-Crayford version features a 2" Crayford style focuser with a 2" to 1.25" adaptor, but NO fan.
well, first question, in queensland how much does your temp drop from dau to night??
does it drop significantly during the night
for me in tassie at the moment, it could be 17 degrees at 4pm and then 3 degress by 10pm. there is no way the primary mirror can cool in that time, so my viewing would be shocking
a fan will help
a fan with enclosed end like matts will be better
a peltiered cooled system is even better still