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My mount - with apologies to those of you whom have some expertise in metalwork...
The counterweight clears the tripod leg by about 2mm at 16.5 degrees elevation. I've got a couple more ideas in store yet. I'd like to be able to leave that counterweight behind and lighten my checked baggage by 3.5kg... It certainly won't be accompanying me on an international eclipse chasing trip!
Another interesting fact I've learnt from this exercise. The robofocus draws more current when stationary, than when moving. I knew they actively held the focus position, but didn't realise the power draw went up. It's drawing 0.4 amp when stationary and 0.2 amp when moving. The 12V lithium battery I have is 2200mAH, so it should be enough for 2hrs of eclipse sequence. The motor also gets quite warm!
DT
Last edited by DavidTrap; 02-11-2012 at 11:23 PM.
Reason: added a bit
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