Vixen FL55SS fluorite Apochromatic Refractor

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  • High-performance, top-of-the-range fluorite apochromat
  • Compact, lightweight and transportable
  • Very high quality standards, fluorite optics
  • Suitable for full-frame photography
  • Razor-sharp star images across the entire field of view
  • Perfect for air travel and excursions
  • High-quality workmanship, made in Japan
  • Dimensions: 80 x 282 mm
  • Weight: 1.5 kg

The Vixen FL55SS fluorite apochromatic refractor delivers extremely sharp and bright star field images to the very edge of a full frame imaging sensor (95% light transmission at 44mm image circle).

The FL55SS has a compact 55mm f5.5 (300mm focal length) apochromatic objective lens and is a small, lightweight, grab and go telescope, ideal for the more demanding astronomer who is looking for a high quality telescope for use on the move. The FL55SS turns into a fast f/4.3 astrograph with the addition of the optional flattener lens and focal reducer. Despite its small aperture, the FL55SS, with a high resolution HR eyepiece, delivers stunningly clear views of the moon and bright planets.

High-performance, top-of-the-range fluorite apochromat for mobile astrophotography and observers. 
Thanks to its small size and lightweight design, this high-quality fluorite refractor is ideal for excursions and air travel.
It displays razor sharp and bright stars across the entire field of view of the full-frame image sensor (95% illumination with 44 mm image circle).
The FL55SSS turns into a fast F/4.3 astrograph with the optional flattener and focal reducer. It allows you to use extremely short exposure times and a provides a large field of view for large nebulae or comets.
Despite the small aperture, the FL55SS features a high-resolution HR eyepiece that produces stunningly clear images of the moon and the bright planets. 
When used for astrophotography, it delivers razor-sharp images of stars that are guaranteed to impress. 


  • Objective lenses: 55 mm fluorite
  • Focal length: 300 mm F5.5
  • Resolution and limiting magnitude: 2.11, 10.5
  • Light-gathering power: 62x
  • Dimensions and weight: 80 x 282 mm; 1.5 kg
  • Adapter and connections: 31.7 mm receptacle, 60 mm thread


  • 55 mm optical tube with fluorite APO
  • Dovetail adapter
  • Extension Tube 60 mm
  • Dew cap
  • Dust covers

Technical Data

Field of application
  • Deep Sky Observation
  • Deep Sky Photography
  • Land observation
  • Land object photography
  • Lunar observation
  • Lunar photography
  • Planetary observation
  • Planetary photography
Focus Group
  • Advanced Amateurs
  • Specialists and Research
  • Visual enthusiasts
Optical design Apochomatic Refractor
Mirror/Lens diam. 55 mm
Focal length 300 mm
Angular resolution 2.11 arc seconds
Type of coating Fully multi-coated
Transportability very good
Colour white
Dust protection caps Dust protection caps for front lens and eyepiece holder
Mount Type Optics without Mount
Total length 282 mm
Total width 80 mm
Net weight heaviest part 1.5 kg
What's in the Box
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