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Sky-Watcher StarGate GOTO 18-inch F/4 Truss Dobadd this item to shopping cart
Code: SWDOB450GT
458mm Sky-Watcher Truss Newtonian telescope with SynScan goto controller


Elegant truss tube design and carefully engineered to combine ease-of-use, extreme portability and consistent performance. Easy to collimate, once set up it holds collimation throughout the evening!

With buttery smooth alt-azimuth movement this amazing BIG aperture scope can be shifted with just the push of a finger.

Includes ultra smooth 10:1 dual speed Crayford focuser.

PARABOLIC PRIMARY MIRRORS

Features High-Quality Parabolic Primary Mirrors to eliminate spherical aberrations inherent in 'fast' focal length reflectors with spherical primary mirrors. The mirrors are parabolized to bring all the light rays to the same focal point to give sharp, contrasty images, which are full of detail.

SKY-WATCHER DELUXE MIRROR COATINGS

Most reflectors today usually have a coat of aluminum as the mirror surface and then an overcoat of silicon monoxide or silicon dioxide to protect it. Silicon dioxide produces a much more durable coat than silicon monoxide but requires specialized equipment to apply it and is, therefore, more expensive. Protection is needed, because, in most reflectors, the mirror is open to the elements and deterioration of the reflective layer reduces the resolution of the telescope. ALL Sky-Watcher reflectors are Multi-Coated with Silicon Dioxide as a standard for Optimum Durability and Long Term Performance.

SPECIFICATIONS:

-Magnifications (with Eyepieces supplied): x71 & x200
-Highest Practical Power (Potential): x1016
-Diameter of Primary Mirror: 508mm
-Telescope Focal Length: 2000mm (f/4
-Eyepieces Supplied: 10mm (1.25") & 28mm (2”)
-Collimating Eyepiece (1.25")
-Dual-Speed 2" Crayford Focuser with 1.25” adaptor
-Parabolic Primary Mirror (Patented weight saving design)
-136mm Secondary Mirror
-9x50 Finderscope
-Direct SLR Camera Connection
-Fabric Light Shroud
-Alt-Azimuth Go-To mount (Metal construction)
-Transmission: Worm + Timing Belt + 64 Micro-step/0.9º Stepper Motor Drive
-Patented 'Freedom-Find' Dual-Encoder design allows manual movement without losing positional information
-Pointing Accuracy: Up to 5 arc-minutes (RMS)
-Gear Ratio: Azimuth 400, Altitude 1523.796
-Synscan Computerised Handset with 42,900+ Object Database
-Power requirement: DC11V/5A ~ 15V/3A
-61% more Light Gathering than 400mm
-Overall Weight 90kg

NOTE: Shipping to NT, SA and W.A will be quoted at time of ordering.



Price: $7,599.00
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