Posted 04 April 2009 - 04:37 PM
Posted 04 April 2009 - 07:26 PM
I have the canon xh-a1 and several accessories attached to it. When I first tried balancing it I noticed putting the camera's center of gravity right over the post seemed to work better. When I tried it with it 3/4 " behind the post I never was able to achieve dynamic balance. I think the 3/4" rule is just a starting point.
I would try getting it with the camera mounted at different positions, just make sure that you have the camera's fore, aft, left and right CG located fairly well.
It may take some patience. However I have also learned that going crazy with dynamic balance is not necessary. As long as the camera is fairly stable when you spin it you should be good to go.
Posted 05 April 2009 - 10:33 AM
As the monitor c.g rises up from the battery c.g (all other things being equal), the camera c.g. moves t the rear and the battery moves forward for dynamic balance. Each situation is unique.
If you have a Pilot, with the monitor raised up very little, the camera c.g. is going to be close to the centerline of the centerpost when in dynamic and static balance.
3/4ths of an inch is only a guideline - and a guideline for BIG rigs, with monitors raised about 1/4 of the way to the camera c.g., and with 25-30 pound cameras...
Read the book, download the dynamic balance primer and the Excel spreadsheet (my site or Tiffen's) and plug in some new measurements and numbers for your sled.
Make those little drawings!
Posted 05 April 2009 - 11:04 AM
Posted 05 April 2009 - 12:57 PM