Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Crap! Go with Canon or Tokina

I bought this lens never was happy with the results. Not very sharp and to much distortion. Very nice wide angle, but I did not feel the optics were very good. Recently purchased the Tokina 12-24 and could not be more happy! Only thing better would either be the Canon 10-22 or the Tokina 11-16. Save you money and buy one of these. I use my wide angle more then my kit, and it is worth investing in.