DPReview , a trusted review
They are going to be very very similar if you are only interested in that one specific spec. How about things like, what glass do you already own? What type of photography do you do? That would be relevant and make this an actual question and not just trolling...
|big gourd by rok urankar|
|crashing waves-1 by stickpointed|
from The Wild Rugged Coast
|'Red 18' by Private Custard|