William Optics Fluorostar
Top Pick
William Optics

William Optics Fluorostar

4.6

Best premium refractor for dedicated astrophotography enthusiasts seeking optical perfection.

Engineered for high-end imaging and visual observation, this triplet apochromatic refractor delivers exceptional color correction and contrast. Its robust construction and precise focusing system make it a reliable workhorse for capturing deep-sky details or enjoying crisp, clear views of the night sky.

$7398.00

In stock

at

Williamoptics

Aperture Mm 156
132
156
Focal Length Mm 1217
Optical Design Refractor

Who it's for

  • Astrophotographers seeking professional-grade color correction and crisp star detail.
  • Night sky observers who value clever, time-saving hardware features.
  • Serious hobbyists looking for a durable, heirloom-quality optical instrument.

Who should skip it

  • Mobile observers who prefer lightweight, highly portable telescope setups.
  • Budget-conscious beginners looking for an affordable entry into astronomy.
  • Urban dwellers with minimal storage or small transport vehicles.

Performance breakdown

Optical Clarity

Triplet lens system delivers exceptional color correction and edge-to-edge sharpness.

Excellent

Focus Precision

The massive rack and pinion focuser handles heavy imaging gear effortlessly.

Excellent

Thermal Stability

Steel objective cell maintains critical alignment throughout long, fluctuating temperature shifts.

Excellent

Build Robustness

Premium construction feels substantial and ready for demanding, long-term field use.

Excellent

Imaging Versatility

Large aperture excels at deep-sky photography but requires a sturdy mount.

Excellent

Setup Convenience

Integrated focusing aids and included hardware streamline the initial assembly process.

Excellent

Key Specs

Aperture

156 mm

Focal Length

1217 mm

Focal Ratio

f/7.8

Optical Design

Triplet Apochromatic

Focuser

3.7 inches

Weight

17 kg

Total Weight

37.48 lbs

Tube Length

1120 mm - 1330 mm

Dovetail Type

Losmandy

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William Optics Fluorostar

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