I'm prepping for a 4-month long job today and tomorrow, and have run into a balance issue that I'm hoping someone can solve ASAP. FYI these issues just popped out of nowhere, they're weren't on the last job I did (which was of course with a completely different camera configuration)
Stripped Alexa with Ultra Prime
Cinematic Precision plate
3-3.5 second drop time
I get the sled balanced on the docking pin. Then I tilt the camera 90 degrees up for a drop time test. The camera settles tilted WAY up (at around 35-40 degrees). If I tilt the camera 90 degrees down and do the drop test, it settles tilted WAY down.
Things I've tried:
Tightened everything on the camera and sled, screws, collars, D box
Taped the batteries tightly in position on camera and sled
Removed all cables to eliminate their possible weight shift
Tried balancing with the battery rack both extended and collapsed
Talked to PRO (Chad was nice enough to take my call 4 times and talk me through some possible solutions)
The only thing I've noticed that's a bit unusual is that if I put my hand on the gimbal handle when doing a drop test, there is a noticeable "thunk" at a certain spot, bot on the upswing and downswing. But the thunk happens nowhere near proper neutral balance, so I'm not sure if it could throw it off that much. And Chad said that the clunk could be anywhere on the sled and just transferring to the handle when my hand is on it, so those bearings could be totally fine.
I can also tell you that this camera setup is LIGHT. Maybe too light, it's going to be really sensitive.
Tomorrow I'm going to try a different camera body, different lens, etc, and just try to eliminate those items. I didn't get far enough into the prep to actually see if it affects my operating, but either way it's not a confidence-inspiring way to start a show.
Thoughts anyone? Thanks in advance!