iOptron Photron RC12Truss Tube

The iOptron Photron RC12 Truss Tube is iOptron's top-of-the-line Ritchey-Chrétien astrograph with a 304mm primary mirror and a 2432mm focal length.

The open carbon fiber truss structure guarantees excellent rigidity, rapid cooling and low weight. Primary mirror has 1/12 wave accuracy. This model has fans behind the primary mirror.

iOptron's Ritchey-Chrétien telescopes have a much flatter field of view than other telescope designs, with zero coma and false color, making them particularly well-suited for astrophotography. The long focal length of iOptron RC telescopes is beneficial for imaging galaxies and planetary nebulae. Both mirrors are 99% reflective and are aluminized and quartz coated.

The telescope has a large 3" two-speed Crayford focuser. The primary mirror is permanently mounted, so there is no mirror flop that is common for many other Cassegrain telescope designs. 

ASCOM-compatible iOptron focus motor for RC telescopes available separately.

Technical Specifications

• Optical design: Ritchey-Chretien
• Primary mirror diameter: 304mm
• Focal length: 2432mm
• Focal ratio f / 8
• Focuser: 3" 10:1 dual-speed Crayford
• Comes with 2 x 25 mm and 1 x 50 mm extension tubes
• Losmandy mounting rails above and below OTA
• Finder saddle
• Tube material: carbon fiber truss structure
• Tube weight: 24kg
• Tube length: 850mm