Tecnosky 0.8X Field Flattener / reducer for 130mm apo Refractors

Three element corrector / reducer for triplet refractor 130 mm F7

It reduces the focal length of the instrument to F5.5 that transforms the refractor into a powerful wide field astrograph. At the same time it corrects the same field on full frame sensors

Screw directly on 3 "Tecnosky focuser with M68x1mm thread.

Imager side there is a thread M48x0.75mm

Diagonal corrected field of 42mm.

The length of the corrector / reducer is 80mm, the back focus is 55mm