Guide Star 61 w/Soft Case

The William Optics GuideStar 61 lens is the same as ZenithStar 61, but with a draw tube in place of the rack and pinion focuser. It also includes a finder mount rail in place of the standard vixen rail. The main purpose of Guide Star61 is as a guide scope for astrophotography.    Can be paired with the Flat61 field flattener for use as an imaging telescope. Description Supports QHY, SBIG, ZWO, and other 1.25" cylinder-type guiding cameras Guide scope provides a straight through viewing with an inverted image. High-quality 61 mm objective. Perfectly suited for William Optics or other refractors with vixen finder mount shoe. Focusing is by use of an extension tube at the back, and a fine focus at the front behind the dew shield. Specifications Focal Length:  360mm Aperture: f/5.9 Weight:  1.4 kg tube length: 340mm