キヤノン レンズダストキャップ E - リアレンズキャップ

Finally, a rear cap that fits snugly on my EF tele-extender without any wobble—the sturdy plastic gives me confidence when it’s tossed in my bag. Takes two seconds to click on, and the contacts stay fully shielded.

Snaps onto my 24-105mm with a satisfying click, and the build quality feels solid enough to trust in my bag. I like that it covers the rear contacts completely without being fussy to remove.

Keeps the contacts on my 70-200mm EF lens protected when I swap lenses in my bag, and it clicks on securely without feeling flimsy. Exactly what you need for peace of mind.