GSO N-254/1250 F/5 M-CRF OTA (model 830)

Introducing a state-of-the-art optical tube designed for astrophotography and advanced visual observations, capable of capturing Solar System objects, star clusters, nebulae, and galaxies. This complete optical tube features a 254 mm F/5 mirror (10 inches) with a focal length of 1250 mm. Its impressive specifications, combined with its solid craftsmanship and high optical quality, make it a popular choice among astronomers.

Manufactured by the renowned Taiwanese factory, Newton's telescopes are well-regarded for their exceptional build and optical performance. The inclusion of a Crayford 2"/1.25" focuser with a 10:1 microfocuser ensures compatibility with heavier cameras, allowing for effortless sky photography. Additionally, the tube's remarkable rigidity further enhances its suitability for astrophotography.

Key Features:

• Large 254 mm (10 inch) diameter glass mirror
• Versatile f/5 mirror configuration
• Highly efficient mirrored surfaces with 94% reflectivity
• 2-inch drawtube with a reduction to 1.25 inches and a 10:1 microfocuser
• Optical finder with 8x50 magnification, securely attached to the tube
• 2"/2" eyepiece adapter with a 35 mm clamping ring
• Tube clips and dovetail mounting rail included, compatible with the Vixen standard

Technical Specifications:

• Optical system: Newtonian reflector
• Lens diameter: 254 mm
• Focal length: 1250 mm
• Focal ratio: f/5
• Secondary mirror size: 70 mm
• Stellar magnitude range: 14.7
• Resolution: 0.46 arcseconds
• Maximum usable magnification: 500x
• Focuser: CNC-machined 2" Crayford focuser with microfocus, capable of supporting up to 3 kg
• Tube diameter: 303 mm
• Tube length: 1150 mm
• Weight: 15.6 kg (including all components)

Warranty:

The optical tube comes with a comprehensive 2-year warranty, providing peace of mind to the user.

In conclusion, this optical tube combines cutting-edge technology, exceptional optics, and robust construction, making it an excellent choice for both astrophotography enthusiasts and those seeking advanced visual observations of celestial objects. Its impressive features and reliable performance ensure a remarkable stargazing experience for years to come.