GEOPTIK 10KG COUNTERWEIGHT FOR CGXL, CGE PRO, CGEM DX Flange Do not use a UV/IR-cut

Do not use a UV/IR-cut filter with oil-spaced objectives or any telescope with an integrated field flattener or Petzval lens

Low profile design with an optical thickness of only 32mm

a focal length between 500mm - 1000mm and a backfocus of 145mm

To avoid halos around bright stars

2 x RCA female

GEOPTIK 10KG COUNTERWEIGHT FOR CGXL, CGE PRO, CGEM DX Flange Do not use a UV/IR-cutThe Geoptik 10 kg counterweight is a high quality counterweight with an internal diameter of 32mm, making it compatible with the Celestron CGXL, CGE PRO and CGEM DX mounts. Made of Chromium plated steel to protect against weathering. The screw is plastic tipped to protect the counterweight shaft. Specifications Weight 10 kg Inner diameter 32 mm External diameter 150 mm Height 80 mm SKU 30A237