Vixen SD81S Telescope

Product code: 76146
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Vixen SD81S Telescope
Vixen SD81S Telescope 

At only 625mm in length the SD81 is the smallest and most portable in Vixen’s new SD range. Perfect for observation and imaging on the move.

The Vixen ED refractor range has been redesigned in order to allow the use of full frame DSLR camera sensors and yet are still compact and portable. The range is now designated SD (standing for Super extra low Dispersion glass) and includes the same 81mm, 103mm and 115mm variants.

Thanks to an improved baffle system, the incoming light near the edge of field of view has been increased when compared to the previous generation models.

The SD range now has its own dedicated field flattener and focal reducer. These help to deliver pin sharp star images across the field of view of a 35mm full-frame image sensor.

Shown with eyepieces sold separately.

The 60mm visual back on the ED range can accept either an optional extension tube or diagonal to accommodate 50.8mm (2”) eyepieces.

Model    SD81S    
Objective lens    81mm ED apochromatic, multi-coated    
Focal length (Focal ratio)    625mm (f7.7)    
Resolving power, limiting magnitude    1.43 arc sec., 11.3    
Light gathering power    134x    
Tube size & weight    (OD) 90mm x (L) 585mm, 3.6kg (7.92lb)    (
Finderscope    XY red dot    
Adapter thread / visual back    60mm on scope body. 42mm for T-mount, 31.7mm push-fit, 50.8mm* push fit on included flip mirror    
Accessories included    Dovetail adapter, tube rings, finder, carry handle    
Photography**    Prime focus, eyepiece projection and afocal imaging    
*A 50.8mm mirror diagonal or a 50.8mm extension tube is needed to use a 50.8mm eyepiece.
**Optional photographic accessories are needed.
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Brand Vixen
Condition New
Product Code 76146