PrimaLuceLab M56x1 Male Adapter for ARCO 2" (PL3600427) Pentax 3") Optical Tube Weight: 27

3") Optical Tube Weight: 27

Optical Design Achromatic Refractor Clear Aperture 80 mm Focal Length 400 mm Focal Ratio f/5 Resolving Power 1

Once locked on an object

Keep each one in its appointed place when not in use and you’ll keep them looking and performing like new

PrimaLuceLab M56x1 Male Adapter for ARCO 2" (PL3600427) Pentax 3") Optical Tube Weight: 27M56x1 male adapter for ARCO 2" allows you to connect rotator to focusers that come with M56x1 female thread and to control it through SESTO SENSO 2 installed on the focuser. PL3600427 adapter adds 1mm to ARCO 2" optical thickness so the total optical thickness (ARCO 2" + PL3600427) becomes 21mm.