Vixen Optics f/5.2 Focal Reducer for the ED81S, ED103S,  Telescopes, Binoculars, Spotting Scopes, Microscopes, Riflescopes, Astronomical Accessories,Refractor,Reflector,Monoculars,Night Vision,Cassegrain,GPS,Optical Tubes,Digital Camera,Eyepiece,Filters,Barlow,Lenses,Diagonals,Prisms,Tripods,Mounts,Finder Scopes,BinoViewers,Optics,Astronomy,Astrophotography,Laser Range Finders,Rangefinders, For Sale
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VIXEN OPTICS F/5.2 FOCAL REDUCER FOR THE ED81S, ED103S, & ED115S SCOPES 3666

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Vixen: Vixen Optics f/5.2 Focal Reducer for the ED81S, ED103S,  Telescopes, Binoculars, Spotting Scopes, Microscopes, Riflescopes, Astronomical Accessories,Refractor,Reflector,Monoculars,Night Vision,Cassegrain,GPS,Optical Tubes,Digital Camera,Eyepiece,Filters,Barlow,Lenses,Diagonals,Prisms,Tripods,Mounts,Finder Scopes,BinoViewers,Optics,Astronomy,Astrophotography,Laser Range Finders,Rangefinders
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Vixen Optics f/5.2 Focal Reducer for the ED81S, ED103S, & ED115S Scopes

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MSRP: $350.00
Sale Price: $249.99
Buy Vixen Optics f/5.2 Focal Reducer for the ED81S, ED103S,  Telescopes, Binoculars, Spotting Scopes, Microscopes, Riflescopes, Astronomical Accessories,Refractor,Reflector,Monoculars,Night Vision,Cassegrain,GPS,Optical Tubes,Digital Camera,Eyepiece,Filters,Barlow,Lenses,Diagonals,Prisms,Tripods,Mounts,Finder Scopes,BinoViewers,Optics,Astronomy,Astrophotography,Laser Range Finders,Rangefinders Now!
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VIXEN 0.67X FOCAL REDUCER FOR ED81S/103S/115S 3666

Item No. 705-03666
Manuf. No. Vixen 3666

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Vixen Optics f/5.2 Focal Reducer for the ED81S, ED103S, & ED115S Scopes, 3666

The Vixen Focal Reducer for the ED81S, ED103S, & ED115S telescopes is a high-quality reducer for imaging use, designed to shorten the effective focal length of your refractor. Shortening the scope's effective focal length quickens exposures and widens the field of view.

To use this focal reducer, you'll need both the Vixen #3878 Direct Wide Photo Adapter and a camera-specific T-mount for your SLR camera. The outer portion of the T-mount is removed, and the remaining element of the T-mount affixes to the Direct Wide Photo Adapter. You then attach both pieces on to your SLR like a lens, and on the other side of the Direct Wide Photo Adapter you screw in this focal reducer. Together your SLR + T-Mount + Direct Wide Photo Adapter + focal reducer thread in to the rear of the focuser barrel upon the refractor.

  • With ED81S, effective focal length & aperture becomes 419mm f/5.2
  • With ED103S, effective focal length & aperture becomes 533mm f/5.2
  • With ED115S, effective focal length & aperture becomes 596mm f/5.2


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