FLT 151 Triplet APO

Product Code: A-F151
In Stock
Price: 266,940NT$

Available Options

Adjustable Reducer/Flattener(P-FLAT4):


Experience the best of the line: the Williams Optics FLT151 Triplet APO f/6.6 Refractor with  All-New 2014 model 3.5" R&P Focuser.

FLT151 Features a top-quality triplet air-spaced objective using outstanding Ohara FPL-53 type glass which provides superb correction for these refractors. In addition, this lens combination provides very high contrast and a flat image field. For visual observing and also with astrophotography you will discover a wealth of detail and tremendously clear image reproduction.

Optically unbeatable

  • Features a top-quality triplet air-spaced objective with FPL-53 glass; 
  • This scope delivers extremely sharp images and has a great color correction. It is ideal for astrophotography.

    R & P Focuser

  • Extra-smooth All-New 2014 model 3.5" R&P Focuser: a treat to use during astrophotography. No more image shifting! 
  • 360 deg. rotatable.
  • Extra-heavy duty.
  • Graduated scale for precise camera alignment
  • Two-speed microfocuser is STANDARD on all units
  • Large aluminum knobs and protection dual speed cap.

    Simply Beautiful Finish

  • Solid CNC-machined mounting rings.
  • Pure William Optics quality fit and finish: powder-painted white CNC-machined aluminum tube, red color finish, retractable dewshield, anodized 360 deg. rotatable R&P focuser, dewshield cap. 
  • Despite of its 151mm objective, the scope is still very compact and solid. 
  • Highly precise CNC machined lens cell.

    Total Quality Package

  • 2" & 1.25" adapters included. 
  • All with brass anti-marring compression rings. 
  • 168mm mounting rings included in the price. 
  • Though you will never need it, you have a 2-year warranty from WO, and the certainty that we will be there to assist you even beyond that, if you need!
  • Aluminum knob's protection cover Included .
  • Thermometer knob included .



Aperture 151mm
Focal Ratio F/6.6
Focal Length 998mm
Objective Type Air-spaced Triplet, Apochromatic objective with FPL53 glass.
Lens Shade Retractable
Focuser All-New 2014 model 3.5" R&P Focuser:, rotatable design
Intergrated 1:10 fine focus
100 mm Focuser Travel Length
1.25" Adapter Provided
Type of Mount Mounting Rings
Tube Length 930mm (Fully Retracted) 
1100mm (Fully Extended)
Tube Weight 14 kg



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