On Oct. 7 we will complete a line of stainless steel counterweights for the Takahashi EM mounts. They will fit any of the Takahashi mounts that use an 18mm dia. counterweight shaft. This includes the EM-200 and EM-10. They will be available in the following sizes:
8 lbs. 1"x6" dia. $75.00
15lbs. 2"x6" dia. $98.00
23lbs. 3"x6" dia. $110.00
Each weight has rounded edges for easy handling; a bronze bushing, and a non-rotating brass plunger to prevent scaring of the counterweight shaft. The brass plunger has a stainless steel spring so it retracts when you loosen the thumbscrew. On other companies' weights the plunger falls into the bore. and prevents it from going on the shaft - unless the knob is down.
Photo is of a weight with an Astro-Physics size 1.875" bore. The Takahashi bore is much smaller at 18mm.