Vixen SD103S apochromatic Refractor

A new apochromatic refractor with high performance Super-ED glass (= SD). The FPL53 glass reproduces an extremely clear and sharp image by an exceptionally high degree of elimination of residual chromatic aberrations.

The advantage of these SD refractors is their short length and low weight. The SD glass is designed to bring all beams of violet, red, blue, yellow and green very precisely together on the same plane. The special lens material, reduces chromatic aberration across all colors. In combination with the new optional SD Reducer HD Kit or SD Flattener HD, these refractors allow illumination with a 44mm image circle for full format SLR cameras.

FEATURES :

• Lens diameter: 103mm

• Type of coating: Multi-coated

• Focal length: 795 mm (f7.7)

• Resolution: 1.13 arc seconds

• Visual limit value: 11.8 mag

• Max. magnification: 206x

• Tube length: 810mm

• Tube diameter: 115mm

• Tube weight: 5,4kg

• Viewfinder telescope: 7x50 with illumination unit

• Adapter 7.0 degrees FOV included

• Connections/adapters: thread 60mm and 31.7mm for T-ring

• Eyepiece adapter: 50.8mm (2 inches) and 31.7mm (1.25 inches)

• Backfocus without Reducer: 150,4 mm

• Backfocus with Reducer: 63,5 mm

• Flip mirror included

SCOPE OF DELIVERY :

• Optical Tube

• Tube rings with carrying handle

• GP dovetail adapter

• Flip mirror

• Dust covers