We have talked about Lenstag before here at SLR Lounge, but for those of you who have not heard of it, here is a quick refresher. Lenstag is an online database where you can store a list of your camera gear and their serial numbers. Then, if your gear is lost or stolen you can mark it as such and Lenstag marks that serial number as a stolen gear. So, if anyone buying gear checks the registry, they will see that the gear that is being sold to them is, in fact, stolen.