William Optics Fluorostar 132 Space Gray OTA — 132 mm triplet apochromatic refractor The current Fluorostar 132 has a 132 mm aperture and 910 mm focal length at f/6.9. Its air-spaced triplet objective uses Ohara FPL-53 glass and STM coatings for colour correction. William Optics specifies a 45 mm image circle.
Manufacturer model: William Optics Fluorostar 132 Space Gray OTA · Specifications checked against manufacturer data on 2026-11-03
William Optics Fluorostar 132 Space Gray OTA — 132 mm triplet apochromatic refractor
The current Fluorostar 132 has a 132 mm aperture and 910 mm focal length at f/6.9. Its air-spaced triplet objective uses Ohara FPL-53 glass and STM coatings for colour correction. William Optics specifies a 45 mm image circle.
Visual observing and astrophotography
The optical tube supports detailed lunar and planetary observing as well as deep-sky imaging. Optional Flat68III, Flat7A, Flat8 and Ultra Flat132 correctors provide different imaging configurations; choose the adapter and spacing specified for the selected corrector.
Focusing and camera connections
A 3.7-inch rack-and-pinion focuser and rotator support focusing and camera framing. Manufacturer-listed connections include an M92 rotator and M92 to 2-inch RotoLock adapter. The specifications below list the separate backfocus settings for the compatible correctors.
Dimensions and mounting
William Optics lists a 9 kg optical tube, 780–1040 mm tube length, retractable dew shield and Losmandy-style mounting plate. This entry describes the current manufacturer model in Space Gray finish.
Prime-lens telescope: corrector compatibility and spacing are model-specific. Optional correctors are listed, not assumed included; corrector adapters may be required.
William Optics Fluorostar 132 Space Gray OTA — 132 mm triplet apochromatic refractor The current Fluorostar 132 has a 132 mm aperture and 910 mm focal length at f/6.9. Its air-spaced triplet objective uses Ohara FPL-53 glass and STM coatings for colour correction. William Optics specifies a 45 mm image circle.
Manufacturer model: William Optics Fluorostar 132 Space Gray OTA · Specifications checked against manufacturer data on 2026-11-03
