Product Details

• Description
• Specifications
• Included Items
• Reviews

• Vixen SD115S Refractor Telescope OTA with accessories.

  Vixen's new SD115S f/7.7 Apochromatic Refractor features high-performance Super ED Glass (SD) made of leading-edge FPL53 glass to deliver extremely clear and sharp images by eliminating color aberration. The SD glass is designed to gather all g-ray (purple), C-ray (red), F-ray (blue), d-ray (yellow), and e- ray (green) to about a "0" value, which makes this excellent lens material that reduces chromatic aberration over all colors. The light baffle positions in the drawtube are arranged to take advantage of the entire field of view of a DSLR camera with a full frame image sensor. When used in combination with the new optional SD Reducer HD Kit or SD Flattener HD Kit , you will have a 44 mm image circle with full-format (D)SLR cameras.

  Note: The Reducer DH, sold separately, includes the SD Flattener DH and is essential for wide field astrophotography with the SD Scopes. Eyepieces sold separately.

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• specifications

  Aperture	115 mm (4.5")
  Camera/Eyepiece Connection	Male T—Thread (M42x0.75)
  Dawes Limit	1.01 arcseconds
  Focal Length	890 mm
  Focal Ratio	f/7.74
  Highest Magnification	230x
  Light Gathering Power	270x
  Limiting Magnitude	14.1
  Optical Design	Doublet Refractor
  Tube Diameter	125mm
  Tube Length	930mm
  Tube Weight	13.5 lbs

• included items

  Included:

  • Vixen SD115S f/7.7 Doublet Refracting OTA Telescope
  • Finder Scope: 7x50
  • Tube Rings
  • Flip Mirror Diagonal
  • Dovetail Plate
  • Carry Handle