William Optics Fluorostar 132 Gold 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 Gold OTA · Specifications checked against manufacturer data on 2026-11-03
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.
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.
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.
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 Gold finish.
William Optics Fluorostar 132 manufacturer specifications
Prime-lens telescope: corrector compatibility and spacing are model-specific. Optional correctors are listed, not assumed included; corrector adapters may be required.
| Flat7a spacing | 69.24 mm backfocus; 14.24 mm adjustment |
|---|---|
| Flat8 spacing | 63.4 mm backfocus; 8.4 mm adjustment |
| Ultra flat132 spacing | 55 mm backfocus; fixed |
Data sheet
Specific References
William Optics Fluorostar 132 Gold 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 Gold OTA · Specifications checked against manufacturer data on 2026-11-03
