I give a full hands on review of the Tamron 15-30mm f/2.8 wide angle lens. With its wide variety, Vibration Control, distortion control and build quality, this is going to find a spot in my bag in the near future. It focuses quickly, test with the Pentax K-1 mainly, is sharp at f/2.8 to fully stopped. This is one of the best full frame wide angle lenses ever made. Thanks to BHPhoto for sponsoring this review!