I cant pretend to understand the formula but I get the principle thanks for that link very interesting!
Is anyone able to recommend me a tripod for my binoculars?
I was making do with a cheap one but it has finally given up the ghost this evening.
What size are your binos?
I have a pair of 20x90 on this tripod
http://www.firstlightoptics.com/tripods/horizon-8115-2-way-heavy-duty-tripod.html
They are 10x50s so nothing too heavy.
There seems to be a lot of love flying around on the net for the 8115.
Here was an attempt at Saturn from last Season:
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