Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Only Someone Who Hasn't/Doesn't Read Reviews Would Buy This Unusably Slow Lens

This lens is bad. Not horrible, cuz Canon doesn't make horrible lenses. But considering the other offerings available for the same, less or slightly more money, buying this lens should only become an option if its price point drops to twenty or thirty dollars and then only as a backup. It just isn't worth more money than that.At 3.5-5.6 it is veeeeeery slow. If you are taking photos indoors, it is unusably slow. Buy the IS version if you need a wide angle zoom. Or for a hundred fifty bucks more than the IS version of this, buy the tamron or sigma f/2.8 wide angle zooms. Much better build qualities than this lens and faster as well.