Just got myself a nikon 17-35 2.8. loving it so far. 17mm is sooo wide on FX. I was really really torn between this lens and the 14-24. On one hand the IQ of the 14-24 is untouchable. On the other, it wont take filters and has a less usable range for me. What sealed the deal for me was finding a used 17-35 for $1100. Its sharp enough at 2.8 that I will use it there if I need too but it definitely isn't a razor at that aperture. Though it is sharper than the 28-70 2.8 that I sold to buy it. email@example.com with zero sharpening applied in post. but stopped down it really sharpens up... It distorts quite a bit up close at 17, but gets better quickly as subject distance increases and also as you move towards 35mm. All in all. Id say if I bought it new and paid $1700 for it I would be disapointed. For the price I paid I'm loving it.