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
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 will accept a
2” SCT diagonal.
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.
The SV50A comes with clamshell, reflex finderscope base, Vixen rail,
visual back. 1.25” dielectric diagonal and a small mini travel case that
is foam lined. The mini case holds the telescope and two eyepieces or a
small diagonal and one eyepiece. If you do not want the case and
diagonal you can order the SV50 OTA which comes without them.
Recommended accessories:You will need a star diagonal or erecting prism, eyepiece(s) and a mount
or tripod for visual use. The SV50A will serve as an excellent
photographic guide scope using the small point and shoot guide cameras
currently available. The heavy duty rack and pinion focuser will
maintain focus and alignment better than any finderscope focuser. Later
this year we will introduce our mini dual axis guiding platform. This
quick-release platform will mount directly to the top of our larger
telescopes, providing adjustments up and down, left and right. Using the
platform the user will be able to align the SV50 with the larger
telescope or onto a suitable guide star.
Light gathering and magnification power: The
SV50A gathers 50 times the amount of light the naked-eye. Magnification
power is dependent upon the eyepiece being used. This telescope
performs well at powers ranging from 10X - 120X at night and 10X - 60X
in the daytime (heat waves make spotting scopes limited to about 60X at
most). Different eyepieces provide different magnification powers. Since
this telescope is carefully tested in our USA facility and is free of
coma and astigmatism, sharper details will be seen when viewing at
higher powers compared to many mass produced, less expensive imports.
Check the Recommended Accessories section to make the best choice for