Sony FDA-EP17 アイピースカップ (一部のαカメラ用)

I was worried it wouldn’t match the a6600, but it slides right on with no wobble. The rubber texture is grippy enough to keep my glasses from getting scratched.

Fits snugly on my a6400 and feels exactly like the original cup that came with the camera. The slide-on design made it easy to replace after the old one wore down.

Slid right onto my a6400 and blocks stray light way better than the original ever did. The rubber feels dense and durable, exactly what you want for an eyepiece that gets daily use.