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Cirkuit pan head.

  • From: David Dobbs <dadobbs@xxxxxxxxxxxxx>
  • Subject: Cirkuit pan head.
  • Date: Mon, 21 Jun 1999 19:44:05 -0400
Please send plans for electronic panning head. I have been looking for a
head to shoot 360 rotating slit pans with the 4X5 and 120 roll film
back.
Maybe like this, 4X5camera sits on ball bearing,  bottom plate is a
large gear top plate is attaches a motor to drive large rear rotating
camera and flex cable to a 120 roll film back. The 120 roll film back
has a dark slide that can be adjusted to a small slit width. I have no
idea how to calculate the gear ratios. How would one calculate the gear
size for a 75 mm lens for this? 2*pi*fl?
David