A great range for 1.5x crop-factor sensors, the Tokina 50-135 f/2.8 fits right in where the 70-200 range used to be on 35mm SLRs. I love my Sigma 70-200 f/2.8, but sometimes I sure wish I could get that extra 20mm that this new Tokina offers. Check out Popular Photography’s review of this new lens. Also, note that Sigma’s got a similar lens with their little brother to my beloved 70-200, the Sigma 50-150 f/2.8 EX HSM.