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Vixen SD103S Apochromatic ED Refractor

Vixen SD103S Apochromatic ED Refractor

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7.00 kg
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Vixen SD103S Apochromatic ED Refractor with Dovetail Adapter, Tube Rings and Flip Mirror

Dual Speed Focuser is available as optional upgrade.

Model 76147

Vixen’s new improved range of SD (Super ED) refractors have redesigned baffle positions in the draw tube to allow the use of full-frame DSLR sensors. The objective lenses on all the scopes are the same on the SD models as they were with the ED models and use Ohara FPL53 glass.

The high definition ED lens in Vixen's SD103S gives excellent optical performance in a short optical tube for easy handling.

The new lenses feature brighter images from the f7.7 focal ratio and capture crisp, pinpoint star images. Vixen’s ED glass produces clear and high contrast viewing, virtually free of false colour.

Vixen’s new optical system focuses the full visible spectrum of light to a critical point much more accurately than earlier models resulting in images that are almost free of chromatic aberration in all colours and are sharp edge to edge.

Offering a larger aperture than the SD81S, this tube offers 217x light gathering power and is supplied with dual speed focuser tube rings and dovetail mounting plate.


Effective Aperture: 103mm
Objective lens: ED Apochromatic, multi-coated
Focal Length (Focal Ratio): 795mm (F7.7)
Resolving Power, Limiting Magnitude: 1.13 arc sec, 11.8
Tube Size & Weight: (OD) 115mm x (L) 810mm, 3.6kg (7.9 lb)
Finder Scope: Optional
Adapter Thread / Visual Back: 60mm on scope body. 42mm for T-mount and 31.7mm push-fit. (Optional: 50.8mm push fit on flip mirror diagonal)
Eyepieces sold separately.
Highest Useful Magnification: 206x
Light Gathering Power: 217x
Photography: suitable for astrophotography (prime focus, eyepiece projection and afocal imaging) with optional photo accessories.
Total weight: TBC

Main image is for demonstration purposes only (it doesn't show the otherwise included dovetail plate)

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