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Sky-Watcher StarGate 18-inch F/4 Truss Dobadd this item to shopping cartThis product is highly recommended
Code: SWDOB450
Big 458mm Sky-Watcher Truss Newtonian telescope for conventient portability and storage


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:

Diameter of Primary Mirror: 458mm
Telescope Focal Length: 1900mm (f/4.1)
Dual-Fit 1.25"/2" Crayford Focuser
Parabolic Primary Pyrex primary mirror
0.5mm Ultra-Thin Secondary Mirror Supports
Finderscope
3-Point tube locking system, fully retractable
Primary mirror weight: 12Kg
Total assembly weight 50Kg


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



Price: $5,695.00Recommended Options
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