About this product
Part Number: 77237
Designed for Vixen's R200SS Newtonian Reflector telescope, the “Corrector PH” employs a Wynne-type (3-elements in 3- groups) optical design to correct coma aberrations from the telescope's parabolic mirror.
Delivers a broad 44mm diameter imaging circle (covers a 36x24mm full frame DSLR sensor) with pin-sharp stars over the entire imaging field.
A large 50mm aperture provides ample edge of field illumination, anti-reflective AS coatings (also used for the VSD 100f/3.8 Astrograph) provide high light transmission and a matte-black interior minimises ghosting from internal reflections.
Back-focus is 55mm.
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