William Optics Fluorostar 132 f/6.9 APO Refractor (3.7" R&P Focuser)

William OpticsSKU: A-F132III-RP33R

Color: Red
Price:
Sale price$6,897.00 CAD
Stock:
On Backorder — ships when available

Flatten the field for imaging

0.79x reducer matched to this scope — faster, wider, round stars to the corners.

Dew protection

Sized for this tube. Dew ends more Ontario nights than cloud does.

Keep the glass clean

  • Description
  • Specifications

The William Optics Fluorostar 132 APO is a premium large-aperture 132mm f/6.9 triplet apochromatic refractor designed for serious visual observing and advanced astrophotography. With a 925mm focal length, excellent colour correction, and substantial light-gathering power, it is built for customers who want a high-performance refractor for lunar, planetary, galaxy, nebula, and deep-sky imaging work.

Who Is This Product Best For?

The Fluorostar 132 is best for experienced observers and astrophotographers who want a larger premium APO refractor for a capable backyard or semi-permanent imaging system. It is well suited to users who already have a mount that can handle a heavier optical tube and accessories.

Why Choose This Product?

  • 132mm triplet APO optics: Provides strong resolution, contrast, and colour correction.
  • 925mm focal length: Excellent for galaxies, lunar detail, planetary observation, and smaller deep-sky objects.
  • f/6.9 focal ratio: A versatile refractor focal ratio for visual observing and imaging.
  • Large-aperture refractor performance: More reach and light gathering than compact APO refractors.
  • Imaging upgrade path: Can be paired with compatible flatteners/reducers for astrophotography.

Recommended Uses

  • Advanced visual astronomy
  • Deep-sky astrophotography
  • Galaxy and nebula imaging
  • Lunar and planetary observing
  • Permanent or semi-permanent backyard imaging setups

Compatibility and Accessory Notes

For astrophotography, pair the Fluorostar 132 with the appropriate William Optics flattener or reducer and confirm camera spacing, focuser capacity, filter wheel clearance, guiding setup, and mount capacity. For visual observing, use compatible diagonals and eyepieces.

Important Limitations

The Fluorostar 132 is not a lightweight grab-and-go telescope. It requires a suitable mount and is best suited to customers who are comfortable managing a larger refractor system. For best imaging results, a matched field flattener or reducer is recommended.

Frequently Asked Questions

Is the Fluorostar 132 good for beginners?

It is best for experienced users or committed beginners with a suitable mount and a clear plan for visual observing or astrophotography.

Can it be used visually?

Yes. It is excellent for visual astronomy with compatible diagonals and eyepieces.

Can it be used for astrophotography?

Yes. It is a strong imaging refractor when paired with a capable mount, guiding system, camera, and appropriate flattener or reducer.

Our Recommendation

The William Optics Fluorostar 132 APO is a strong choice for customers who want a large premium refractor with serious visual and imaging capability. Choose it if you want more reach, aperture, and resolution than smaller APO refractors and have the mount capacity to support it.

Lens TypeTriplet APO refractor
Aperture132 mm
Focal Length925 mm
Focal Ratiof/6.9
Primary UseAdvanced visual astronomy and deep-sky astrophotography
Recommended Imaging AccessoryCompatible William Optics flattener or reducer

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