Vixen’s new SD103S apochromatic refractor features high-performance Super ED Glass (=SD) made of leading-edge 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 (Item #37246) , you will have a 44mm image circle with full-format (D)SLR cameras.
The Reducer SD, sold separately (Item #37245) , includes the SD Flattener DH and is essential for wide field astrophotography with the SD Scopes. Eyepieces sold separately. Optical Design: SD Apochromatic Refractor
Focal Lengt: 795mm
Focal Ratio :f/7.7
Coating :Multi Coating
Resolving Power :1.13 arc sec
Light Gathering Power :217x
Finder Scope: 7x50
Adapter Thread: 60mm/42mm for T Ring
Astrophotography: Prime Focus, Eyepiece Projection & Afocal Imaging
Visual Back : 50.8mm and 31.7mm Push fit with the supplied flip mirror diagonal
Optical Tube Length : 32" (810mm)
Optical Tube Diameter: 4.5" (115mm)
Optical Tube Weight: 12lb
Accessories: Tube Rings; Flip Mirror Diagonal; Dovetail Plate; Carry Handle
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