SV50A is a super compact ED Apochromatic refractor telescope. It has a high performance 50 mm f-6.6 (330 mm focal length) extra-low dispersion, edge blackened doublet objective.
Fully multi-coated objective: This color-free, high contrast ED lens has extreme broadband multi-coatings on all four lens surfaces. These coatings transmit light above and below the visual spectrum, which is important to minimize reflections.
Lightweight aluminum tube and dew shield: The tube and dew shield are made of aluminum and painted Instrument White. This tube is extremely durable and will work well when using the telescope as a guide scope. The dew shield retracts to reduce the length of the telescope. The dew shield minimizes dewing effects and serves as a lens shade.
Internal tube treatment: The tube interior including the long focuser draw tube is painted black inside to eliminate tube wall reflections.
Mini dual speed, rack and pinion focuser with precision rotator and bearings: This telescope includes a unique miniature version of the venerable Stellarvue 2.5” dual speed rack and pinion focuser. It has the same type of 360 rotator, a precision rack and pinion, small 11-1 dual speed mechanism and it is threaded to accept both visual and photographic accessories. The focuser comes with a 1.25” visual back and is threaded at accept future accessories. PLEASE NOTE: in the Sky and Telescope magazine “Hot Product” article, S+T mistakenly indicates that this telescope comes with a 2” focuser. It does not. This focuser is a 1.25” focuser.
Mini adjustable clamshell with Vixen mini rail, shaped mounting base: The telescope includes a mini version of our clamshell and has the same “easy-one-touch” balance. Also included is a dovetail for mounting a reflex finderscope. The clamshell will attach to any mount using the Vixen rail, and can be adapted to use the Losmandy system and will instantly attach to any heavy duty camera tripod.