Tokina 12-24 f/4 or Sigma 12-24 f/4-5.6 on Full Frame

Hello everyone, I've been tossing up the idea of exchanging my month old Canon 17-40 f/4L for a much wider Tokina 12-24 f/4 or the Sigma 12-24 f/4-5.6. I've read that even though both lenses are made for cropped bodies they will still work with out vignetting or atleast not much on a full frame. Does anyone have any first had experience with either lens on a Canon 5D?

Please post examples aswell as your experience.

Thanks.
Rafael Sanchez

The Sigma is made for full-frame. The Tokina is reported to vignette up to around 15mm.

Damn, I was hoping the Tokina was the better of the two. I liked the Tokina because it excepts 77mm filters, constant f/4, lower price, and from what I read just as sharp as the Canon 10-22.

Sigma is the only option on FF to be usable at 12mm.
I had one. Check the 12-24mm thread for posts by me. A lot of them are with a 5D. All my exifs should be intract.

Yes, the Tokina vignettes at 16mm on my 1DmIII, which is 1.3x. Generally it's not a pretty picture at FLs beyond vignetting either. I might keep it though, as I understand I should trade my 1Diii in on a 450D...

Thanks guys, so would you recommend it Ben? I might just keep the 17-40 and buy a 15mm Fish Eye, but I figured I would try and find some different options.

This post is what actually got me thinking...
http://www.soocool.com​/forum/viewtopic.php?t​=6678

hmp wrote:
="hmp"]I know I overused the Wide Angle here but I think it's cool. I just have too much fun using my new lens the sigma 12-24 at 12mm on 5D.

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DEMO wrote in post #4774721
Thanks guys, so would you recommend it Ben? I might just keep the 17-40 and buy a 15mm Fish Eye, but I figured I would try and find some different options.

Tough call.
On a 1.3, the sigma 12-24mm is the only option IMHO. I'm a wide angle junkie and I loved that lens on my 1DmII. When I went FF, I didn't swap lenses because it can cover FF and 12mm on FF is insanely wide.... It was a lot of fun, but optically it's a bit soft on full frame. I also used it at 12mm and nothing else...

So I sold mine and picked up the 17-40mm and 15mm FE. This way when I want crazy wide I get the distortion of the FE (because you get mild distortion with the 12mm anyway, and that's what made it fun, the fisheye is wider and has more distortion for when you want that). Then when I don't need/want the distortion, I have the 17-40mm which is wide enough, and a better lens optically. There have been a few times where I miss the 12~16mm ends though. Especially on the boat where you can only get so far away, and the distortion of the FE gets a bit much with all the lines that should be straight on the boat...

If I had to pick between the 17-40mm & 15mm FE -or- 12-24mm again, I'd get what I have, but there are times when I've missed the 12-24...

Here are 8 using the 12-24mm:

8 with the FE:

8 with the 17-40mm:

honestly, if the 12-24mm has a constant f/4 and the corner IQ was a bit better I would have kept it. It's an awesome lens. And if I didn't have a 1.3 I wouldn't have considered selling it. But on FF, I'm glad I made the switch because I've noticed a distinct IQ gain with the 17-40mm and 15mm FE... I don't know what it is, but I'm much happier with the out of the camera shots with the new lenses.

Thanks for all the great examples Ben. I'm also planning buying a 15 FE, so I should be fine.

Wow this is great:

I am considering getting a Canon 10-22mm I may have to look harder at this lens instead. (Tokina 12-24)

I've used the tokina 12-24 on full frame, and found that it was only usable without vignetting at 18mm. I was hoping for wider. The Tokina 11-16 is a different story though. It works around 14.5mm on full frame beautifully, which is why I use that lens instead of the very expensive 16-35 or 14L.

picturecrazy wrote in post #8282225
The Tokina 11-16 is a different story though. It works around 14.5mm on full frame beautifully, which is why I use that lens instead of the very expensive 16-35 or 14L.

you should really stop saying that unless you can prove me wrong:

jacobsen1 wrote in post #8178857
something I did for another thread:

Here it is with the hood on:

then w/o at each whole FL:
11mm

12mm

13mm

14mm


15mm


16mm


15 is close to in the clear, but it's still got black corners, 16 has normal vignetting from a wide open lens (and interestingly, the 5Dii know the lens and corrects for it in camera with it's peripheral whatchamacallit correction).

from that test, 16mm is usable, 15mm IS NOT. So 15.5 might be, but who cares? Sure it's an inexpensive 16mm 2.8 prime, but that's all you're getting...