Ultrawide lens choice

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Archive 2009 · Ultrawide lens choice

jrscls
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p.1 #1 · Ultrawide lens choice

Now that I have both a 40D and 5D, I'm trying to decide the best wide angle lens choice-

I have a Tokina 11-16 f2.8 for the 40D right now. Would the 17-40 f4 L mounted on the 5D be at least as good or better than my current combo. I loose 1 stop of aperture, but the 5D is at least 1 stop better in low light.

I could sell the Tokina and get the f4 L without too much cost difference.

So what is the better combo-

40D / 11-16 f2.8

or

5D / 17-40 f4

Jul 04, 2009 at 08:36 PM

ovredal73
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p.1 #2 · Ultrawide lens choice

5d and 17-40 is a more versatile combo. It goes from ultrawide to moderate wide, while the 11-16 is pretty much an ultrawide. F4 on FF is probably also a DoF equivalent to 2.8 on 1.6x sensors? Somebody with more tech knowledge than me can inform better about that.

Jul 04, 2009 at 08:40 PM

jrscls
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p.1 #3 · Ultrawide lens choice

BTW, my other lenses include 24-105 f4 IS and the 17-55 f2.8 IS; however, I haven't made up my mind if I will keep the excellent 17-55 f2.8 IS glass since it can only be used on my crop body. If I get the 17-40 f4 L, it might be a bit easier to let the cropper glass go.

Jul 04, 2009 at 08:46 PM

vpk24_astro
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p.1 #4 · Ultrawide lens choice

Take a look at the Tamron 17-35 f/2.8-3.5 It's surprisingly good value. The corners are crappy on FF wide open but are decent once you've stopped the lens down some.

Jul 04, 2009 at 10:26 PM

Jman13
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p.1 #5 · Ultrawide lens choice

The aperture will matter for shutter speed, but not for DOF, as you'll have even shallower DOF on the 17-40L at f/4 on full frame for the same shot as you will at f/2.8 on the 40D.

I had the Tokina 12-24 on my 30D, and when I got my 1Ds II I swapped it for the 17-40L, and I've been extremely happy with the switch. The 17-40L is sharper in the center than the 12-24, but should be about the same as the 11-16. You might lose a small bit of corner sharpness going to the 17-40L, but you'll more than make up for it with the beautiful color rendition and then there's the benefits of the better camera sensor. Overall, I think you'll be pleased with the switch. Don't expect night and day differences with results, and you'll have to correct the 17-40's barrel distortion in post, but that's a one click fix for me (I use PTLens). You'll actually lose a bit of weight with the 17-40...it's a surprisingly light lens.

Jul 04, 2009 at 11:25 PM

phillipyan
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p.1 #6 · Ultrawide lens choice

17-40mm offers great image quality when slightly stopped down, and more flexiblity on your gear. Both 40D and 5D will take 17-40, while 5D is incompatible with 11-16 whatsoever.

Jul 05, 2009 at 12:09 AM

jrscls
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p.1 #7 · Ultrawide lens choice

Thanks all. My excellent copy of the Tokina 11-16 will be for sale on the B/S forum soon.

Jul 05, 2009 at 02:25 AM


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