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[APML] temperature drop


I'm planning to get a early start imaging this evening.
If all goes as planned I'll be ready to fire my first shot
right after twilight. Should I be concerned with the steep
temp drop which occurs right after sundown?  Will my first
couple 1 hr shots turn out 'soft' (focus shift)?  Thanks for
any help.

btw, I'll be using my ap traveler.  If that makes any difference

Grant


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