Irix Rear Lens Cap

A rear cap is the part that goes missing first and matters most: the back element and the contacts sit exposed the moment a lens comes off the body. This is the cap Irix ships with its own lenses, so the bayonet lugs engage the way they should rather than sitting loose the way a generic cap often does.

Order it by mount, not by lens. Irix lists the Canon EF cap for the Blackstone and Firefly 15mm f/2.4, the Blackstone and Firefly 11mm f/4 and the Dragonfly 150mm f/2.8 Macro in Canon fit, with the Nikon F and Pentax K caps covering the same lenses in their mounts. Pick the mount above before adding to the cart.