As much as everyone weighs up the advantages and disadvantages of the lens itself, it's probably worth thinking about whether you'd actually use it or not. OK, in comparison to a 600mm behemoth it's cheap, but it's still £70 you could quite easily have spent on something more useful. Personally I liked 50mm as a focal length when I had my D50, it was handy to have the sharpness available with primes without being restricted to my 85mm, but it's still very awkward for most applications. That is, of course, unless you always get to plan the situation in, and distance at which, you're shooting. Edit: And unless you really need the wide aperture for low-light or throwing the background of portraits out of focus, it's a bit of a gimmick as olv says.