I find my good, they are quite tough... mine's been droped more time than i care to remember, and even been underwater with out a casing... and still works good. only thing i would say is that there is no dust removal tech in them... which if your careful you don't need. Depends on how much you wanna spend. Just check out the specs on the Nikon web site on the ones you reckon you could afford, to check what your going to be using it for. Ie. flash sync speed for modeling, ISO for night/fast action shots. But if you've got lenses already stick with Nikon, saves so much cash.