I'm considering making stainless steel weights for SP, GP, DX and other mounts with a 20mm dia. counterweight shaft. These weights would be similar in design to those I sell for the G-11, GM-8, and MI-250. See:
I'm considering three sizes for the GP weights:
1" x 4" dia. weighing approx 3.2 lbs.
2" x 4" dia. weighing approx 6.7 lbs.
3" x 4" dia. weighing approx 10.3 lbs.
I expect the prices to fall somewhere around $60 to $75 ea. If you are interested in purchasing such weights please let me know what sizes you are interested in.
Astro Accessories by Robin Casady