Photron 150mm f/9

The iOptron Photron 150mm f/9 is a professional-grade Ritchey-Chrétien catadioptric telescope featuring low thermal-expansion quartz optics with 99% reflective dielectric coatings, delivering coma-free and chromatic aberration-free imaging. With its 1370mm focal length, fixed primary mirror, and precision dual-speed Crayford focuser with 10:1 reduction, this compact telescope is ideally suited for both astrophotography and visual observation of galaxies, nebulae, and deep-sky objects. The RCT design, used in the Hubble Space Telescope and other world-class observatories, provides edge-to-edge sharp images with exceptional contrast and color fidelity. The telescope's moderate f/9 focal ratio allows for shorter exposure times while maintaining excellent light gathering power in a portable package compatible with mid-sized equatorial and alt-azimuth mounts.