Illumination with a 44mm image circle for full format
Pure-color, high-contrast images
Description
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.
What's Included
Optical Tube
Tube rings with carrying handle
GP dovetail adapter
Flip mirror
Dust covers
Specs
Optical design
Apochomatic Refractor
Mirror/Lens diam.
103 mm
ED Glass
Yes
Focal length and Aperture ratio
795 mm f/7.7
Angular resolution
1.13 arc seconds
Eyepiece adapter
50.8mm (2 inches) and 31.7mm (1.25 inches)
Visual limiting magnitude
11.8 (approx., mag)
Viewfinder
7x50 with illumination unit
Dimensions and weight
115 mm x 810 mm, 5.4 kg
Warranty
Vixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:
