astro.n-minus

OTA

Sharpstar 13028HNT-AL

Key specifications

Aperture130 mm
Focal length364 mm
Focal ratiof/2.8
Optical designNewtonian
Back focus55 mm
Weight3.8 kg

All specifications

Focuser typeDual-speed rack and pinion, 20 mm travel, rotator, built-in doublet corrector
Tube length400 mm
DovetailVixen

About

The aluminium-tube version of the 13028HNT: a 130 mm f/2.8 hyperbolic Newtonian astrograph on a PZ33 primary, with a doublet ED corrector built into the dual-speed rack-and-pinion focuser and a 65 mm secondary for full-frame illumination.