Fast focus, strongly built with a solid feel, sharp throughout, a well built lens hood, cheaper than the Nikon 12-24mm f/4 and in my opinion just as good
A bit on the heavy side, some problems with flaring, the lens hood takes up a wide space in the camera bag, the ring to switch from AF to MF is rough, DX format makes this a 18mm-36mm
Here is a gallery of architectural images taken with this lens only: Click Here
All images © 2004-2015 by Walter Otto Koenig, Images may not be copied, downloaded, or linked. All rights reserved.