Fluorostar 132 in Space Gray: the top-class all-around apochromat
The William Optics Fluorostar 132 Space Gray combines a large aperture with exceptional sharpness. The FPL-53 and lanthanum glass triplet lens delivers a color-pure image where star points truly shine: double stars are sharply separated, and Jupiter's cloud bands and Saturn's rings are clear and sharp.


Lots of light, short exposures
With a 132 mm aperture and 925 mm focal length (f/7), you capture a lot of light: nebulae and galaxies require shorter exposures, and the image scale is large enough for serious planetary work. The 3.7-inch rotating focuser with 1:10 fine adjustment supports heavy camera trains without sagging and rotates the composition without loss of focus. Expect an EQ6-class mount.
In the box
- Optical tube Fluorostar 132/925 triplet, Space Gray
- 3.7 inch rotary focuser with 1:10 fine adjustment
- Losmandy-style dovetail
- Handle
- Vixen/Sky-Watcher accessory shoe
- Bahtinov mask
- Transport bag
Featured accessories
The William Optics Flat68III flattener (869 euros) flattens the field to full-frame; a UniGuide 50 mm guidescope (from 189 euros) fits directly into the accessory shoe.
For whom yes, for whom no
For advanced astrophotographers and visual observers seeking a refractor for life. Not for those who photograph with mobile or lightweight mounts; the Fluorostar 91 is the logical choice then.
Specifications
| Optical design | Apochromat, FPL-53 triplet with lanthanum glass |
| Opening | 132 mm |
| Focal length | 925 millimeters |
| Opening ratio | f/7 |
| Focuser | 3.7 inch rotary focuser with 1:10 fine adjustment |
| Attachment | Losmandy-style dovetail with handle |
| Accessory shoe | Vixen/Sky-Watcher |
| Execution | OTA (loose tube), Space Gray |
Unsure about the right tube for your camera and mount? The telescope selection aid helps you choose. Also view all Refracting telescopes and the full range of William Optics.





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