If there is an accessory that's harder to keep up with lens caps, then I'm not sure I want it. Lens caps are, of course, super important. They protect the front element of our expensive lenses from debris like dust, dirt, and sand, and they do a mighty fine job of protecting them from scratches when in storage.
As great as they are, though, they can be a pain to keep up with and are easily lost. An image of a fully automatic screw-on lens cap recently appeared on the web though, and we wondered, just how many of you knew about it? Keep on reading after the break to see the ingenious design of this cap. . thephoblographer.com