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Vixen  |  SKU: ES26144

Vixen Optics AX103S 103mm f/8 Apo Refractor Telescope


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Vixen Optics AX103S 103mm f/8 Apo Refractor Telescope



  • 103mm / 4" Apochromatic Refractor
  • 825mm Focal Length
  • f/8 Focal Ratio
  • Extra-Low Dispersion (ED) Glass Lenses
  • Field-Corrector Lens, Multi-Coated Glass
  • Dual 2" Eyepiece Holders
  • 90° Internal Flip Mirror
  • 7x50 Illuminated Finderscope
  • Mounting Ring Set with Carry Handle
  • Vixen-Style Dovetail Plate
  • OTA Only; Mount and Tripod Required


The Vixen Optics AX103S 103mm f/8 Apo Refractor Telescope is an ideal optic for astronomy and astrophotography.

Optically, it's designed with a fully multi-coated 3-lens apochromatic extra-low dispersion (ED) glass lens system that corrects both spherical and chromatic aberrations. This correction creates a wide flat field of view without distortion and removes the blue-tinted "halo" effect for true high-contrast color transmission.

A rear field corrector lens further corrects astigmatism and distortion at the edges of the lens so views remain crisp and sharp from edge to edge.

An optional focal reducer can reduce the aperture ratio to 1:5.6 in order to provide quicker results for astrophotographers. The built-in field flattener lens provides a sharp image across the entire field of view – an essential requirement in astrophotography. The 60 mm ring on the focuser allows you to attach a 2’’ eyepiece and a camera adapter.

The AX103S is specially designed for photography, but also offers stunning visual performance, especially for observing the moon and the planets. The AX 103S is corrected for full-frame photography and provides razor-sharp pictures right into the corners of the image field.

This telescope is guaranteed to provide a lifetime of outstanding performance!

  • AX103S ED apochromat with triplet ED objective
  • Fully coated triplet ED objective
  • Optimized for full-frame photography
  • Build-in field flattener lens for sharp images
  • Very high sharpness and contrast

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Vixen Optics AX103S 103mm f/8 Apo Refractor Telescope | ES26144 | 4955295261444

Vixen Optics AX103S 103mm f/8 Apo Refractor Telescope





103 mm | 4"

Focal Length

825 mm

Focal Ratio


Field of View



1.13 arc seconds resolution

11.8 limiting magnitude

Extra low dispersion (ED) glass

Fully multi-coated

Barrel Size



687mm x 115mm


10.1 lb | 4.6 kg
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