Tom's 20" SlipStream
20"
f3.55 SlipStream GoTo Telescope. This has been my personal Telescope
for years. It has been completely renovated, looks sharp, and functions
as well as new. Here are some of the features:
--
The primary mirror is from Lightholder Optics. Comes with a full mirror
report, showing a Wavefront P-V Error of 1/14, a Wavefront RMS of 1/46,
and a Strehl Ratio of 0.982. The views from this mirror back up those
numbers. You will not be disappointed.
--
SiTech drive components
--
Cordless hand control that gives you an adjustable 3-speed slew on both
axes.
--
slip clutches on both axes gives you the ability to move the scope by
hand at anytime without losing positional accuracy. Or you can move
the scope with the cordless hand control. Seamless operation.
--
Sky Commander digital setting circles for full GoTo capability. Just
push a button and stand back to watch the scope slew to your chosen
target and then track it
-- very rigid welded aluminum rocker and mirror boxes
-- solid aluminum rolled altitude bearings
-- stout 1.25" diameter truss tubes are black powdercoated
-- machined lower and upper truss hardware from Aurora Precision
-- state-of-the-art welded steel mirror cell. This cell features an
18point floating back support, a four point floating edge support and
an easy two-knob collimation system.
-- heavy duty spider and secondary holder from AstroSystems
-- FeatherTouch Focuser
-- custom truss tube shroud
-- separate interface ring makes assembling the cage easy while standing
on the ground.
-- a fan and rechargeable battery mounted in the mirror box to cool
the mirror
-- a stalk and tray is provided to carry the DSC, eyepieces, etc.
-- wheels and handles to move and transport the lower assembly
-- tight fitting front and back mirror covers keep insects and dust
out of the mirror box when the scope is in storage.
-- all aluminum parts either anodized or powdercoated for durability.
Stainless steel fasteners used throughout.
-- Extra plate on the Upper Cage to mount a finder or guide scope
-- Included is a dew heater mounted behind the diagonal to keep that
mirror dew-free on humid or frosty nights.
-- BONUS! -- an Astrosystems scope cover to protect the entire scope
from the weather at star parties.
New
price for this complete Telescope system would be $26,500.
This refurbished 20" is offered for $18,500.
Contact Tom at tomosy@nccn.net
if you are interested.