Eye cup (702-0273A)

The spare part eye cup (702-0273A) is compatible with: ATX eyepiece module, STX eyepiece module. Manual for exchanging the eye cup: Removal - You only need to twist out & unscrew the old eye cup (counter-clockwise) by grasping the metal ring. Installation - when threading in replacement eye cup(s), turn them (clockwise) until they are fully tightened and flush with the binocular. Once they are flush, give them a final snug twist to fully seat and retain the eye cup.