Replacement Eyepiece for Corsac, Corsac 2

Like-for-like replacement: This is a replacement eyepiece identical to
the one that comes as standard with all Corsac and Corsac 2 devices.

Fits all Corsac and Corsac 2 models: No tools are required to replace
your existing Corsac eyepiece. Replace your old eyepiece in under 60
seconds!