William Optics Fluorostar IV
Top Pick
William Optics

William Optics Fluorostar IV

4.7

Best premium refractor for dedicated deep sky astrophotography enthusiasts.

This triplet apochromatic refractor delivers exceptional color correction and sharpness, making it a versatile choice for both visual astronomy and deep-sky imaging. Its robust, precision-machined construction ensures stability, while the premium glass optics provide the clarity needed for high-resolution planetary and wide-field observations.

$4998.00

Out of stock
Aperture Mm 132
132
156
Focal Length Mm 925
Optical Design Triplet Apochromatic

Who it's for

  • Astrophotographers seeking professional-grade color correction and crisp star detail
  • Serious hobbyists who value durable equipment and smooth mechanical operation
  • Night sky photographers wanting a streamlined setup and precise focusing

Who should skip it

  • Mobile observers who prefer lightweight setups for quick travel
  • Budget-conscious beginners looking for an affordable entry into astrophotography
  • Impatient observers wanting to start imaging immediately after setting up

Performance breakdown

Optical Clarity

FPL-53 glass delivers virtually perfect color correction for crisp, high-contrast views.

Excellent

Build Integrity

Precision CNC-machined aluminum ensures rock-solid stability for demanding long-exposure astrophotography.

Excellent

Focuser Precision

The 3.5-inch rack-and-pinion system handles heavy imaging gear without slippage.

Excellent

Versatility

A balanced aperture makes this equally capable for planetary and deep-sky imaging.

Excellent

Portability

At nearly 20 pounds, it requires a sturdy mount for field use.

Good

Accessory Ecosystem

Thoughtful inclusions like the Bahtinov mask simplify setup for serious observers.

Excellent

Key Specs

Aperture

132mm

Focal Length

925mm

Focal Ratio

f/7

Optical Design

Triplet Apochromatic

Optical Coatings

Fully Multi-Coated

Focuser Type

Rack and Pinion

Focuser Size

3.5 inches

Optical Tube Material

Aluminum

Total Weight

19.8 lbs

Highest Useful Magnification

256x

Know before you buy

Still have a question?

Ask Metto anything about the William Optics Fluorostar IV before you decide.

William Optics Fluorostar IV

Ready to buy?

Telescopes.net
Telescopes.net
Out of stock
$4998.00
Buy