ZWO AM3 & AM5 Counterweight Bar - BC230 103mm Telescopes Antares Model No: UB2S Optics

Antares Model No: UB2S Optics Type: Barlow Lens Aperture: 27 mm Focal Length: -NA- Optical Design: Negative Doublet FL Increase: 2x

many amateur astronomers keep theirs even if they decide to buy an equatorially mounted telescope for astrophotography

SKU: SCIV Function: The Ideal Adjustable Astronomy Chair Construction: Wood

it weighs in at only 2

ZWO AM3 & AM5 Counterweight Bar - BC230 103mm Telescopes Antares Model No: UB2S OpticsThis 230 mm counterweight shaft is designed to attach to the bottom of the ZWO AM5 or AM5 mount and others that would accept a screw with M12x1. 75 mm threads. The shaft is 20 mm in diameter and is made of 304 stainless steel. Use a counterweight (sold separately) that is made to slide onto a 20 mm diameter counterweight shaft (like this one). A counterweight (sold separately) and counterweight bar is needed when the load on the AM5 mount is over 13