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07-08-2007, 07:25 PM   #1
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Anyone using the Sigma 10-20mm EX DC?

I've been quite satisfied with the performance of the Sigma 17-70 and the 70-300 APO DG on my K10D. I'm considering the 10-20mm lens, and would appreciate any comments from those of you who are using it.

Thanks in advance
Clem Nichols

07-08-2007, 08:29 PM   #2
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Everytime you're in a confined space, you'll give thanks for your 10-20. Whether it be in churches, narrow corridors, taking photos of something massive and unable to go back any further before you hit the road (or the building on the opposite side of the road) it's a very good lens.

I used it on the K10D for the first time on the weekend... will see if I can find a shot. Sometimes I have trouble focussing it correctly, that's about the only complaint I have.
07-09-2007, 01:32 AM   #3
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My Party Lens

My 28-70mm, f/2.8 is my walk around lens, the 10-20mm lens is a great lens for those real close up wide angle shots that look great for where I am working.

I was at a party the other week and used it exclusivley, gave a real fun aspect to the pictures.

Between 15-20mm it is good lens, under 15mm you really start to see the disortion at the edges of the image. Great for indoors too.
07-09-2007, 01:40 AM   #4
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I dont have this lens myself, although I did consider getting one at one point. But now I actually find that I like the fisheye better for extreme wide, I actually think its more natural because as mentioned here, a rectangular ultrawide going as wide as 10mm will stretch things quite a bit. of course, you have the oportunity to zoom a bit more if you want to reduce the stretch effect.

photozone has a test of the 10-20 up here Sigma AF 10-20mm f/4-5.6 EX DC (Pentax K) - Photozone Review / Test Report

07-09-2007, 04:57 AM   #5
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I have this lens. I love it! You have to be careful with your framing and composition (and keep your loved ones out of the edges unless you want them to never talk to you again)
Here's one at 15mm -


More at Valley Forge Spring 2007

This along with my Tamron 28-75mm are my two main walkaround lenses.
07-09-2007, 05:06 AM   #6
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Original Poster
Thanks for all your responses.

Clem Nichols
07-09-2007, 09:09 AM   #7
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I too have the 10-20, and compared to the competition it's 2mm wider, and of comparable IQ and build-quility, while being cheaper.
07-09-2007, 08:04 PM   #8
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The Sigma 10-20 is a fine lens, I have no hesitation recommending it to anyone looking for an ultrawide zoom..

07-09-2007, 09:00 PM   #9
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I the 10 to 20 as well as the 28 to 70, they both get a workout and can recommend them both.
07-10-2007, 10:32 AM   #10
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Thanks again to all of you who've taken the time to respond to my query. After considerable checking on the internet I've come across only one negative comment about this lens (someone on the Photography review website), and most have, in fact, been very glowing. I'm a little surprised that on this web site I didn't hear from someone recommending the Pentax 12-24mm lens over the Sigma, particularly as the reviewer at Photozone gave it a somewhat higher rating. For the extra 2mm in the lens and the extra $250 or so in my pocket, however, I think I'll go with the Sigma.

Clem Nichols
07-10-2007, 03:48 PM   #11
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I agree the Pentax 12-24 is better, but not worth twice the price (which it is here).. The 10-20 is still a very good lens though, definately good enough for my needs.
01-08-2008, 12:31 AM   #12
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Sigma 10-20mm is really a good lens and the auto-focus speed is good on my K10D.
Here's a photo taken at Las Vegas, FYR...

01-08-2008, 01:04 AM   #13
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QuoteOriginally posted by Clem Nichols Quote
I've been quite satisfied with the performance of the Sigma 17-70 and the 70-300 APO DG on my K10D. I'm considering the 10-20mm lens, and would appreciate any comments from those of you who are using it.

Thanks in advance
Clem Nichols
I am using Sigma 10-20
The best Sigma lens
01-08-2008, 01:52 AM   #14
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Great lens, buy it
01-08-2008, 03:20 AM   #15
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I have the 10-20 and have been quite pleased with its performance

Took it to france and shot over 1000 shots with this lens. (I posted one some time ago from Versailles)

The other options really are the pentax 12-24, or the sigma 12-24 EX DG.

I have read some reviews that the 12-24 sigma is a better lens, and it is a full frame lens, which may be important to those who either still shoot film, or believe that some day there will be a full frame pentax.

It was not an issue for me, because if I want full frame at an equivelent field of view, I have the Pentax 18-35mm that came with my *istD. although it is not quite as wide, it is wide enough on a film body
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