12-25-2014, 01:32 PM
I had 10-24 for APS-C and still have 14-24 for FF, which is also comparatively fast. If you like to play with a shallow DoF, then I'd recommend FF lens as you can use those for APS-C as well. But if you always want to go for a large DoF, then the smaller lens is lighter. I like to see as much details as possible, therefore 36 MP and the 14-24 are the right way. I also had the Sigma before and did like it, too.