UWA for crop
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**BobbyT** · 06-12-2008 09:04 PM

I am trying to decide between the tokina 12-24 f4 and the sigma 10-20 f4-5.6. I like the idea of a constant aperture, but for ultra wide the extra 2mm probably makes a difference in some situations. thoughts?

**jacobsen1** · 06-12-2008 09:06 PM

10 * 1.6 = 16mm
12 * 1.6 = 19.2mm

Need I say more?

**Markitos** · 06-12-2008 09:10 PM

Originally Posted by jacobsen1

10 * 1.6 = 16mm
12 * 1.6 = 19.2mm

Need I say more?

2mm is a really big difference on the wide end... not having a constant aperture never slowed me down. Just shoot on the wide end all the time!!

I also like that the Sigma has manual focus override, whereas with the Tokina, you have to move a ring on the barrel of the lens to toggle between the two.

**BobbyT** · 06-12-2008 09:12 PM

Well that is enough convincing for me. Sigma4less here I come. Thanks guys.

**thechickencow** · 06-13-2008 01:56 AM

Yeah, absolutely go with the sigma. I really like mine.

I used to love it until I got my 17-55.

**user errors** · 06-13-2008 06:53 AM

<3 Sigma 10-20

**ride5000** · 06-13-2008 07:00 AM

that sigma is probably the next thing i pick up too... i just wish i had the $$$!

**PhatheadWRX** · 06-13-2008 07:04 AM

Ok guys for my future reference, would you go:

Sigma 10-20 or Canon 10-22?

**user errors** · 06-13-2008 07:13 AM

The Canon is faster, has an extra 2mm, and is supposedly sharper, but it's also much more expensive.

I went Sigma.

**LucKie355** · 06-13-2008 07:23 AM

We just got the Sigma 10-20 last month, it's been great. Luca loves it and uses it almost exclusively now.

-K

**ride5000** · 06-13-2008 07:50 AM

afaik the only reason not to go canon is the money.

**PhatheadWRX** · 06-13-2008 07:57 AM

Anyone try both?

Edit - after looking through the Lens Forum (Marks Sigma Review and others), I think my curosity is satisfied

The sigma does look nice.

**jacobsen1** · 06-13-2008 09:34 AM

here's a good review between the 10-22 and the 10-20:
http://www.pbase.com/lightrules/uwatest
Basically he says neither is perfect, both have minor issues, but both are fantastic lenses. If you need the speed of the canon (AF and aperture) then maybe it's worth the extra $.

**thechickencow** · 06-13-2008 10:14 AM

I couldn't justify the extra money for the canon (i think that seems common)

**user errors** · 06-13-2008 02:58 PM

Originally Posted by thechickencow

I couldn't justify the extra money for the canon (i think that seems common)

Same here. Especially since I was able to pick up my Sigma used for only $400 shipped

**BobbyT** · 06-13-2008 04:56 PM

I agree. Looking at the POTN archives and the pixel peeper archives I do not see much of a difference at all. The extra 2mm on the long end seems counter intuitive to ultra wide angle. I have a Sigma 30mm 1.4 for that. This lens will rarely leave 10mm for me. And by the way, my new Sigma shipped today. Should have it by Wed.

**user errors** · 06-13-2008 04:57 PM

Nice!

**BobbyT** · 06-13-2008 04:58 PM

I can't wait. I will be at the American Ghost Conference as a guest next weekend. Should be fun to play with this in a conference environment.

**jjswee** · 06-13-2008 05:20 PM

Someone should really make a 10mm prime lens.

**Geekybiker** · 06-13-2008 05:24 PM

I just wish the UWA lenses weren't $500ish +

**BobbyT** · 06-13-2008 05:54 PM

Originally Posted by jjswee

Someone should really make a 10mm prime lens.

There are a couple, but they are fisheyes.

**jjswee** · 06-13-2008 06:04 PM

Originally Posted by BobbyT

There are a couple, but they are fisheyes.

Someone should really make a non-fisheye 10mm prime lens.

**BobbyT** · 06-13-2008 07:21 PM

It would be expensive. The Canon 14mm is $1750, the reason I went with a zoom for UWA.

**jacobsen1** · 06-13-2008 09:27 PM

yeah, I'd love some wider UWA primes, but they seem cost prohibitive. Plus each single MM wider is such a difference, zooms make a lot more sense with UWAs, otherwise you'd need 4~5 primes to cover the range.

**user errors** · 06-13-2008 09:31 PM

Yeah, I don't think a UWA prime is all that practical

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