The fast ultra wide market is not quite as populated as the rest of the lens market, so when something interesting comes out, it gets me plenty excited. The Sigma 18-35mm 1.8 became the fastest crop sensor zoom, and stores have trouble keeping them in stock. Now we have two new interesting pieces of glass to look at.
Tokina AT-X 11-20mm f/2.8 PRO DX
The apparent successor to the famed 11-16 2.8, which is one of the most popular ultrawides around. This gives a modest improvement to the zoom range. That extra 4mm may not sound like much, but at this extreme, 4mm is a fairly significant difference in FOV. Other than that though, things look unchanged.
Despite the smallish improvement, if they maintain the optical quality of the 11-16, this will surely be as popular as the 11-16. What will be interesting to find out, is whether it will be usable on full frame at longer focal lengths. As some folks know, the 11-16, also for cropped sensors only, actually covers full frame at 16mm. So, it may be possible that this new lens can be usable as a 16-20mm full frame lens. Time will tell
Tamron SP 15-30mm f/2.8 Di VC USD
This is even more interesting to me, for one because i don't typically have need for the insane wide-ness that is the 11-14mm cropped range. However, this little(big) fella is a full frame lens, meaning it's very wide, to a mid-normal/wide on full frame. On a cropped sensor, 15-30 covers a range i find very usable. it equates to a 24-48mm full frame, a nicely wide, to very normal. If you're in film/video like me, you can also think of it like having 3 major primes: 24, 35, 50(48).
Topping that off, it has VC, or Vibration compensation, Tamron's version of a stabilizer. For video, this is excellent to have. Also of course useful for photography but many find it not necessary for such a wide rang (in full frame at least)
One caveat is that this big little fella has a perminently attached hood with no theads, so if you're a fan of circular filters, this may not be the lens for you.