Vixen Optics ED103S Refractor Telescope with Dual Speed Focuser (ITEM #2609)

This ED103S Refractor Telescope bundle from Vixen Optics includes a dual speed focuser, an illuminated finderscope, plus a flip mirror diagonal. These accessories help to locate and accurately focus upon celestial objects, whether or not a camera is adapted to the telescope.

The ED103S Refractor Telescope is an apochromatic refractor with a focal length of 795mm and an aperture of 103mm. It combines the assets of "Super Low Dispersion" glass in the objective lens and a fast f/7.7 focal ratio to deliver clear, wide-field deep-sky imagery. The SD glass lenses produce a crisp, high-contrast field of view that is virtually free of false color. They are capable of focusing the visible spectrum with accuracy and chromatic aberrations are minimized as well.

The ED103S is stable and weighs 8.1 lb. A dovetail plate is provided, as well as a carry handle. This bundle includes a flip mirror diagonal to enable accurate, visual framing and focusing for astrophotography. The flip mirror diagonal can be configured with a 1.25" eyepiece and a camera. When an interesting object has been located, the Vixen Dual Speed Focuser offers a quick, or a fine 1/7th speed focus for critical observation.

Also included in this bundle is Vixen's 7x50 Illuminated Finderscope to aid in centering observed objects. It features a floating illumination 'dot' in the center of its field of view to help align the finderscope to the main scope.

Dual-Speed Focuser

• Quick, and fine 1/7th speed focusing
• Retrofits to the rack and pinion focuser on the telescope
• Can be attached on either side of the telescope focusing shaft

Finderscope

• Large exit pupil
• Bright and wide field of view
• Internally illuminated dot helps alignment to telescope
• Achromatic objective lens with Kellner-type eyepiece system

Diagonal

• 2.0" Focuser barrel accepts 49mm filters
  (use a 49mm to 48mm step-down ring to employ conventional astronomical 48mm filters)
• Each output of flip mirror has 42mm T-mount threading for prime focus photography with SLR cameras
  (camera-specific T-mount adapter is required)
• Add optional #3931 SX Camera Adapter to straight through path for eyepiece projection photography with SLR cameras
  (camera-specific T-mount adapter is required)