I just received my new Preston. I already own 3 Heden M26VE motors. Today at the check out, the motors didn't seem up to the task. It was responsive and precise on normal racks say 10 to 60 feet or 2 to 30 feet, but when we did a fast rack from 10 inches to infinity there was about 1/2 a second from the time you stopped moving the hand unit until the motor reach infinity.
When we adjusted the speed on the MDR it had no effect. The torque spec of the m26VE is 1.8nm. The DM1x is 2nm. There is no max speed rating on the Heden website. The max speed of the DM1x is 4.1 revolutions per second.
I spoke with Preston, Able Cine Tech, and ARRI CSC. I tried to call Magnus at Heden but it was after-hours. The opinion ranged from it should work perfectly to it's a limitation of the motor to it's not the motor.
I did't have any other motor to test. We will monday. I was able to observe an Arri UNIT do the long rack with no noticeable lag.
So my questions are;
Does anyone have experience with heden M26ve motors and Prestons?
Does the speed of the motor change when your change the speed on the MDR?
Does any one know the max speed of the M26VE?
I don't want this to turn into a flame tread. The set up will work well on 99% of shots. I'm not in anyway trying imply any of these pieces are flawed or bad. If you don't have anything of use to add don't reply.
Thanks for your time and Help,