Quote:
Originally Posted by Merlin66
Hmmm
Adding optics to the set-up can change the effective focal length....
Reducers and Barlows all have an impact.
Easiest solution is to use a blind solve in Astrometry.net - this will establish the focal length etc.
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Makes perfect sense now i think of it.....but made no sense before!
Guess i just posted in case someone came across the same issue as me and didnt ask the right questions when trying to get it working
...add it to the collective knowledge pool hahahaha