Askar 140APO 1x Full-Frame Field Corrector

Reference: Askar aplanisseur 140APO 1x

Condition: New product

Askar 140APO 1x Full-Frame Field Corrector

1x field corrector designed for the Askar 140APO refractor. It preserves the native f/7 focal ratio while correcting field curvature and coma. Its triplet optical design supports a 44 mm full-frame image circle and delivers sharp, consistent stars across the entire field with a standard 55 mm back focus.

More details

Available immediately from the supplier. Please contact us for more information.

More info

Askar 140APO 1x Full-Frame Field Corrector

Description

The Askar 140APO 1x field corrector is specifically optimized for use with the Askar 140APO refractor. It does not modify the telescope focal length or the native f/7 focal ratio, while effectively correcting field curvature and coma. The triplet optical design provides full-frame 44 mm coverage, ensuring uniform image quality from the center to the edges of the sensor. The corrector features a standard 55 mm back focus measured from the base of the M48 male thread. The front thread is M92x1. On the camera side, M68x1, M54x0.75 and M48x0.75 adapters are supplied, with the M48 adapter incorporating an internal 2-inch filter thread. The entire assembly is CNC machined and includes threaded metal dust caps to protect the optics when not in use.