Astro-Physics 14 lb. Stainless Steel Counterweight for 1.125" Shaft
The Astro-Physics 14-pound Stainless Steel Counterweight for 1.125-Inch Shaft...
For use with 1.125" Shaft on 400, 600E, 800, and Mach1 Mounts.
This weight has a 6-inch diameter and is 1.8-inches thick, and has a locking knob on the side.
Astro-Physics' counterweights are precision machined from 303 stainless steel. The weights slip easily onto the counterweight shaft and are secured in position with a large hand knob/brass pin assembly. The brass pin will not mar your shaft.
Note: Some weights may not use the bronze insert as depicted in the photo.
Keep in mind that you can adjust the position of the weights to counterbalance varying loads. However, the addition of a guidescope, camera and other heavy accessories may necessitate an additional counterweight. If you plan to mount your catadioptric, Newtonian or any other scope, figure that you will need a counterweight total equal to approximately 90 to 125-percent of the weight of your tube assembly and accessories (large diameter scopes require a higher percentage).
Image of the Astro-Physics line of Stainless Steel Counterweights: This weight is the one pictured on the right.
Heavy and shiny
It is hard to put into words how well machined AP counterweights are. No worries about these slipping and scratching up your counterweight bar. (though for goodness sake use a toe saver!) Some would think, why pay a lot for something that only has a requirement to be heavy and not slip? Well if you are going to buy a premium mount, it might as well look /good/.