GSO Newtonien 200/800
New product
200 mm f/4 Newtonian telescope by Guang Sheng Optical, featuring a high-reflectivity parabolic mirror, precise 2" Monorail focuser, and 8x50 finder. Designed for fast astrophotography and wide-field observations.
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The GSO Newton 200/800 Monorail is a fast Newtonian reflector telescope, specifically designed for astrophotography. Its 200 mm BK7 parabolic primary mirror with 94% reflectivity delivers bright and high-contrast images. The short f/4 focal ratio allows for reduced exposure times, making it ideal for capturing deep-sky objects.
The 2" Monorail focuser with 1:10 micro-reduction ensures precise focusing, even with heavy loads like CCD/CMOS cameras. The robust mechanical design guarantees optimal stability, essential for long-exposure imaging.
Optical design: Newtonian reflector
Aperture: 200 mm
Focal length: 800 mm (f/4)
Primary mirror: Parabolic BK7, 94% reflectivity
Secondary mirror: 70 mm diameter
Central obstruction: 35%
Focuser: 2" Monorail with 1:10 micro-reduction, 1.25" adapter
Finder: 8x50 straight-through optical finder
Tube: Steel, 730 mm length, 230 mm diameter
Tube weight: Approx. 8.7 kg
Included accessories:
Tube rings with Vixen-style dovetail
35 mm extension tube
Dust caps
With a weight of approximately 8.7 kg, this optical tube is compatible with equatorial mounts offering sufficient payload capacity for astrophotography. Modern mounts with harmonic drive or belt-driven systems, such as those offered by iOptron, can be considered for optimal use.
Fast f/4 optics for short exposure times
High-reflectivity mirrors for bright images
Precise Monorail focuser suitable for heavy setups
Robust mechanical design for optimal stability
Ideal for wide-field astrophotography