Advice on UWA

Hello All,

I am dithering between a choice between 2 UWA.

• 10 - 22 mm Canon f4-5.6

• 11 - 16 mm Tokina f2.8

I am going up to Hong Kong to buy the lens, the canon is offered at $USD 690 and the Tokina is cheaper by ninty bucks at USD $600. I am seeking practical advice for those who own the lens or have previously own the lens.

With the price so close, will the difference in 1mm wide make a differences. I anticipated myself to be doing a number of landscape. I cannot figure how much more horizon I can get with 1 mm.

However, I saw another thread here and the 1 stop difference seems critical if doing architecture interior shot.

How about fireworks, will the 1-stop make a difference?