Ultra Wide for 1D?

I initially had my mind set on the 11-16 2.8....
But I hear that it works from 13mm on a 1D..
The sigma 12-24 seems like a good option, as it goes all the way to 12, and on FF will be ultra ultra wide....
I don't know about the sigma 10-20
And I do not really want the 10-22 due to it's rear element hitting the mirror thing....

What would you recommend?

ultra wide on a 1.6x crop is 10mm
ultra wide on a 1.3x crop is 13mm
ultra wide on a full frame is 16mm

So on your 1.3x crop 12mm should be as wide as you can go. The range is ultra wide(12mm) up to wide (24mm).

I think the only other option you would have is the 14L.

14L? (yum)

found a thread comparing them on a 1Ds here actually
https://photography-on-the.net/forum/showthre​ad.php?t=423531

I use the Tokina 11-16 on my Mark III with no problems. I don't hesitate to use the whole range. Vignetting is apparent from 11-13 but I don't give it any thought because I can just take it out with post.

Superficialodds wrote in post #6925202
I use the Tokina 11-16 on my Mark III with no problems. I don't hesitate to use the whole range. Vignetting is apparent from 11-13 but I don't give it any thought because I can just take it out with post.

Oh, so it's not like black barrel sort of vignetting, it's just darkening?

Here's a sample of the Tokina 11-16 @ 11mm 2.8 on a 1DMk3

Superficialodds wrote in post #6925225
Here's a sample of the Tokina 11-16 @ 11mm 2.8 on a 1DMk3

Sweet!!!

What does it look like at 12mm?

How does it work with the hood/filter?

11mm w/hood

Screenshot of an image taken with a Sigma (IIRC) 10-20mm on my 1D Mk2, at 10mm f/7.1.

I think (but am not sure) that this was without hood or filter.

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I think this might help you on the field of view and the sensor size:
http://lens-reviews.com …w-Visualisation-Tool.html

also:
http://www.cambridgein​colour.com …al-camera-sensor-size.htm

Merry CHRISTMAS