OM System LR-2 Lens Rear Cap

The rear element and the electrical contacts are the parts of a lens that never get cleaned, so they are the parts that must not be exposed. The LR-2 is the OM System rear cap, fitting any Micro Four Thirds or OM-D lens.

There is no such thing as owning too many of these. Every lens off the camera needs one, and they are the accessory most reliably left behind in the bag pocket of a previous trip.