This Meopta Meostar S2 20-70 Eyepiece is specifically designed for the MeoStar S2 82 HD spotting scope. This eyepiece offers extra magnification with a 45° - 63° field of view, sharp images, a push button quick release bayonet mount, twist-up eyecups, and waterproof exterior with nitrogen purging. Meopta Meostar S2 20-70 Eyepiece 541650