GSO 10" F/12 M-LRC Classical Cassegrain Truss Carbon Optical Tube Assembly (OTA)

The classical Cassegrain telescope, once considered a relic of the past, is experiencing a resurgence in popularity within the astronomy community, thanks to the innovative advancements by the Taiwanese GSO factory. Highlighted by its unique features and outstanding performance, this Cassegrain telescope is poised to become a staple for astronomers worldwide.

Key Features

• Efficient Heat Dissipation: The design of the Cassegrain telescope allows it to dissipate heat more effectively than its Schmidt-Cassegrain and Maksutov-Cassegrain counterparts, similar to RC Newtonian telescopes.
• Reflection-Based Operation: Operating solely on reflection, it eliminates residual chromatic aberration caused by light diffraction, setting it apart from RC and Newtonian telescopes.
• Longer Focal Length: The Cassegrain telescope features a longer focal length than typical RC or Newtonian telescopes, sharing parametric similarities with Maksutov telescopes.
• Compact and Portable: Its compact structure, akin to RC and Mak telescopes, offers convenience and portability for astronomers on the go.
• Infrared Photography Compatibility: The absence of a lens system makes it highly suitable for infrared photography.
• Simplified Collimation: The long focal length simplifies the collimation process, a common challenge with RC telescopes.
• Advanced Mirror Design: Comprising a main mirror with a rotational paraboloid shape and a secondary hyperbolic mirror, the telescope overcomes traditional manufacturing challenges for superior performance.

The GSO Cassegrain telescope is versatile and ideal for a range of applications, including visual observations, planetary astrophotography, compact deep-sky astrophotography with highly sensitive cameras, and both infrared and ultraviolet photography.

Technical Specifications

• Optical Design: Classic Cassegrain
• Lens Diameter: 250 mm (10")
• Focal Length: 3000 mm
• Focal Ratio: f/12
• Main Mirror: Parabolic shape, minimum reflection coefficient of 96%, hardened with quartz
• Secondary Mirror: Hyperbolic shape, minimum reflection coefficient of 96%, hardened with quartz
• Collimation Mark: Yes, located on the secondary mirror
• Obstruction: 33%
• Focuser: 3.25" M-LRC (dual-speed linear bearing Crayford)
• Tube Construction: Carbon truss
• Outer Diameter: 400 mm
• Tube Length: 690 mm
• Weight: Approximately 17 kg (including accessories)
• Factory Shipping Packaging: 92 x 51 x 56 cm / 22 kg

Backed by a 24-month guarantee, the GSO 10" F/12 M-LRC Classical Cassegrain Truss Carbon OTA offers reliability and customer satisfaction. With its exceptional optical design and cutting-edge features, this revitalized Cassegrain telescope from GSO provides astronomers with a superb instrument for their observational and astrophotography pursuits.