Quote Originally Posted by erno james


if trying to do landscapes on a cropped sensor, go with a 10-22 Canon EFS or a 10-20 3rd party lens. When you go full frame, you'll have a backup that can do both.
<div style="CLEAR: both"]</div>

Yes, you can use a 1.6 crop ultra wide on a full frame with the focal lengthzoomed in. But the image quality is not very good in the corners. Better off getting a 17-40mm, 12-24mm or something if you even want that focal length later on. A general purpose lens is much more usefull for most people and generallyshould be the first lens you should consider.


John.