I'm thinking about an ultrawide for a D300s...tossing up between the Nikon 10-24mm f/3.5-4.5, 12-24mm f/4 and Tokina 11-17mm f/2.8
Obviously the Tokina has a better aperture, but no AF motor (I hate hate hate slow AF) and a short focal range.
Both Nikons have get out of the ultra-wide territory and into the wide region, so offer a little more versatility, both have an AF motor (but lets face it, generally you don't need fast AF for landscapes). Both have crappy apertures (do you really need a 2.8 on an ultrawide though?). And I can't see much difference between a f/3.5-4.5 and an f/4.
As you can see, I can't decide........are there any other points to think about when comparing these 3 lenses? I'd love to hear some pros and cons from anyone who owns one