GSO N-203/1000 M-CRF OTA Optical Tube (Model 630)

The GSO N-203/1000 M-CRF OTA is a fully equipped optical tube designed for the Newtonian system. With a main mirror diameter of 203mm and a focal length of 1000mm, this versatile astronomical instrument allows for advanced visual observations and astrophotography. It features a 2-inch focuser with a 1.25-inch microfitter 10:1 reduction, enabling the use of various eyepiece standards and precise focusing.

The observation capabilities of this optical tube are extensive, ranging from objects within the Solar System such as the Moon, planets, asteroids, and comets, to a wide array of nebulae. It encompasses several thousand nebular objects, including all items in the Messier catalog and a significant portion of the NGC catalog.

The optical tube can be mounted on any assembly with a stiffness class of EQ-5 or higher, such as HEQ5 or EQ6, with or without GOTO functionality, using the standard dovetail link in the Vixen/Sky-Watcher/Meade standard.

Key Features:

Optical System:

• System efficiency exceeding 94% for enhanced durability and optics performance.
• Parabolic mirror with an f/5 ratio.
• Mirror cooling system to maintain optimal temperature.

Eyepiece Holder:

• 2-inch focuser with a clamping ring.
• 10:1 microprocessor-controlled planetary gear for precise adjustments.
• 2-inch to 1.25-inch reduction with a clamping ring.
• Millimeter scale for convenient image focusing.

Equipment:

• Complete optical tube.
• 8x50mm finder with a crosshair.
• Tube clamp.
• Dovetail rail compatible with Vixen/Sky-Watcher/Meade standard.
• 2-inch to 2-inch 35mm adapter with a brass pressure ring.

Technical Specifications:

• Optical System: Newtonian reflector.
• Mirror Diameter: 203mm (8 inches).
• Focal Length: 1000mm.
• Focal Ratio: f/5.
• Mirror Performance Accuracy: 1/8 wave.
• Resolving Power: 0.69 arc seconds.
• Theoretical Limiting Magnitude: 13.5.
• Maximum Useful Magnification: 400x.
• Optical Tube Length: 920mm.
• Weight: 9.8kg.

Warranty:

The GSO N-203/1000 M-CRF OTA comes with a 2-year warranty.