Quote:
From Terry B
"With an OAG and accurate polar alignment to prevent field rotation there should not be a mechanical limit to the length of the exposure."
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I agree, but I must add the following:
the lubrication of Allan's NEQ6 is very very good ! With 60 mins some drift could happens because of mechanical effort.
I have a NEQ6, and I had to do maintenance just because of it.
And it is very impressive that no significant saturation occurred.
Great experience !
