William Optics Fluorostar Refractor
Top Pick
William Optics

William Optics Fluorostar Refractor

4.6

Best high performance triplet for dedicated deep sky astrophotography enthusiasts.

This is a serious instrument for astrophotographers who prioritize optical perfection over portability. By utilizing premium glass and a rock-solid focuser, it eliminates the frustration of chromatic aberration and image shift. You are trading a lightweight setup for uncompromising clarity and the mechanical stability required for long-exposure deep-sky imaging.

$4998.00

Out of stock

Who it's for

  • Astrophotographers seeking professional-grade image quality and color accuracy
  • Serious hobbyists valuing durable construction and smooth mechanical operation
  • Practical observers wanting streamlined setup and easier focusing workflows

Who should skip it

  • Mobile astronomers requiring lightweight gear for frequent travel
  • Budget-conscious beginners looking for an affordable entry into the hobby
  • Users with lightweight mounts unable to support heavy optical tubes

Performance breakdown

Optical Clarity

FPL-53 glass virtually eliminates color fringing for pristine, high-contrast views.

Excellent

Focuser Stability

The massive 3.7-inch rack-and-pinion handles heavy imaging gear without slippage.

Excellent

Build Integrity

All-metal CNC construction ensures long-term durability in demanding field conditions.

Excellent

Portability

Retractable dew shield helps, but the 9kg weight requires a sturdy mount.

Good

Imaging Versatility

Optimized for deep-sky astrophotography while maintaining excellent performance for visual observation.

Excellent

Focusing Precision

Integrated Bahtinov mask cover makes achieving critical focus quick and effortless.

Excellent

Key Specs

Aperture

132 mm

Focal Length

925 mm

Focal Ratio

f/7

Optical Design

Triplet, air-spaced, FPL-53 glass

Total Weight

19.8 lbs

Intended Use

Astrophotography

Experience Level

Advanced

Included Accessories

Dew Shield, 3.7" R&P focuser, 3" Roto Lock adapter, Bahtinov mask cover, CNC carry bar, Losmandy style Dovetail plate, Soft carry bag

Tripod Included

No

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William Optics Fluorostar Refractor

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Highpointscientific
Highpointscientific
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$4998.00
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