Sony FDAEP21 Eyecup F/A1 Mark II

This Sony FDA-EP21 Eyepiece Cup is a spare or replacement part for an included eyepiece with the a1 II mirrorless camera. Made from silicone rubber and polycarbonate, the FDA-EP21 is a deep-type cup designed to protect your viewfinder from dirt, dust, and other debris while also helping to block unwanted light.