Sony ALCF55S 55mm Front Lens Cap

The spring-loaded center pinch mechanism makes it super easy to pop on and off one-handed, which I really appreciate when switching lenses quickly. Snaps into place securely with a satisfying click, and it fits my 55mm thread perfectly without being too tight.

Fits my 55mm lens perfectly and snaps on with a satisfying click. The plastic feels sturdy enough to survive being tossed in my camera bag.

The center pinch mechanism on this cap makes it easy to grip even with gloves on, and the fit on my 55mm filter thread is snug without any wobble. It's a simple piece of plastic that does exactly what it's supposed to do, and I don't have to think about it.