With digital SLR cameras so affordable now, it's inevitable for techies and budding photographers alike to snap them up like hot cakes. But while the cameras are cheap, the lenses are not. But fret not, because you can actually buy used lenses instead! Used lenses are a real bargain but there are some things you should be aware before you buy them. And that's what this guide is all about! Link : Used Lens Buying Guide!