Optical Tube Assemblies

Make the saxon 100 ED Refractor Telescope part of your astronomy journey with its quality optics and portability.

With an aperture of 100mm and a focal length of 900mm, this telecope is perfect for wide field photography of both land and sky objects. Weighing just under 4 kg, this OTA can easily be transported around and mounted on your choice of mount and tripod. 

For a high-performing telescope at an affordable price tag, your choice has to be the saxon 100 ED Refractor Telescope. 

• Air-spaced triplet optical design
• Japanese made Hoya FCD100 optics
• Advanced chromatic aberration correction
• ED glass
• EMD enhanced multi-layer deposition
• Dual-speed focuser

• 11" Schmidt-Cassegrain Optical Tube Assembly (OTA)
• Features Celestron's premium patented StarBright XLT optical coatings
• 2800mm focal length (f/10)
• Fastar compatible
• Tube constructed of durable and lightweight aluminum
• Includes: 40mm eyepiece (70x), 9x50 optical finderscope, star diagonal, 1.25” visual back, CGEM-style dovetail bar

NOTE: For solar observing the recommended solar filter is the Astrozap Glass solar filter 308-314 mm (Product Number 124447). This solar filter is a perfect fit for this OTA. 

• Fast, wide-field 11” f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature
• Large 43.3mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52mm for larger format sensors
• New Ultra-Stable Focus System (USFS) minimizes focus shift and mirror flop
• Integrated air-cooling system features a quiet, high-output 12V MagLev fan and vents with mesh filters to prevent dust ingress
• Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras