It is also recommended for use with astronomical telescopes with 1 1/4" focuser. As a standard unifocal eyepiece it offers long eye relief, and bright, high-contrast images.

The rotatable eyecup offers an adaptor-mounting screw/thread when removed (single-focus models: 30.5mm in diameter with a 0.5mm pitch; zoom: 43mm in diameter with a 0.75mm pitch).

Compatible with the following: PF-65 and PF-65ED(A)II series spotting scopes, PF-80 series spotting scopes, PF-100 series spotting scopes.