Tokina 11-16 or Sigma 18-35 1.8

Trying to figure out which lens I want, obviously I have a crop sensor so I know these wont be the focal length listed. I currently have a Sigma 17-70 OS, 50mm 1.8 and a Rokinon 85 Cine.

Buying the Sigma would be kind of redundant, but I do like what I see from the lens, the 11-16 would give me my firsy wide angle lens.

I mainly shoot video (hince the cine lens) but I did want to get intro street photography, currently Im awful at photography but plan to really get into it, that and headshots.

The 11-16 is very wide but it is basically a pseudo-prime lens. The FL range is pretty limited. The Sigma will at least give you more FL and 1.8 if you need it.
They both have some weight on them and the Sigma is supposed to be built tough too (I know my Tokina is a tank).

BrickR wrote in post #16115383
The 11-16 is very wide but it is basically a pseudo-prime lens. The FL range is pretty limited. The Sigma will at least give you more FL and 1.8 if you need it.
They both have some weight on them and the Sigma is supposed to be built tough too (I know my Tokina is a tank).

Well that just makes me more indecisive, honestly thinking of leaning towards the Tokina, just because I currently have the 17-70, though its not nearly the lens the 18-35 is it still does me justice for minimal photography.

KeenanRIVALS wrote in post #16115391
Well that just makes me more indecisive, honestly thinking of leaning towards the Tokina, just because I currently have the 17-70, though its not nearly the lens the 18-35 is it still does me justice for minimal photography.

It can't be denied that the Sigma 18-35 is going to be one heck of a lens. That said I think the Tokina is an valuable tool for video work where you really need the wide shots, or also if you do any kind of journalism or interviewing out on the streets. Your 17-70 is already a decent lens, and your 85 Cine is great for half-body / headshots or distance shots. While 17 or 18mm is wide, sometimes its not wide enough and the few mm of range from 10mm to 16mm makes a huge difference on APS-C.

If you know you need the wider angle, I wouldn't hesitate to get the Tokina because its very good for video and wide landscapes as well. But if 17mm is wide enough for you, then you could opt for the Sigma if you want one of the sharpest normal to wide-angle zooms on APS-C and can live without the 36-84mm gap in range that you would be left with.

For video the 18-35 has something very nice its Parfocal as least as far as my testing and one review site can tell.

from Wiki
"A parfocal lens is a lens that stays in focus when magnification/focal length is changed. There is inevitably some amount of focus error, but small enough to be considered insignificant."

You really should goto Lenstip.com and read the reviews there.