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View Poll Results: If You Could Just Pick One..
Pentax DA 12-24 3322.00%
Pentax DA 10-17 74.67%
Pentax DA 15 5033.33%
Tamron 10-24 106.67%
Sigma 10-20 3221.33%
Sigma 8-16 1812.00%
Voters: 150. You may not vote on this poll

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12-12-2010, 08:13 PM   #16
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ohyouloveme: So here's where you guys decide for me. I'll just get the one that is chosen most in this poll.
I would select for yourself if I were you. After all, this is "Pentax Forums," not Sigma, Tamron or Zenitar forums. I had to make the same decision your are forced with. I took my time, looked at tons of images, and read the reviews, technical & owner. Then I factored in things like warranty & price.

The Sigma 10-20 was the clear winner, but the 3.5 version & the 8-16mm were not available then, nor was the Tamron 10-24. So your decision is even tougher--Mind your way.

12-12-2010, 08:21 PM   #17
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The Sigma 10-20mm f/4-5.6. It lives on my camera most of the time, most of the others are quite wide enough. It has its warts for sure, but it's a good performer IMO.

Wish the Tokina 11-16 f/2.8 was available in the Pentax mount, but oh well.
12-12-2010, 08:41 PM   #18
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Edited for completeness and readability. Here is what my 3 choices would come down to.

DA 15mm - advantage size and my probable first choice since I do long distance backpacking
Sigma 10-20 - advantage ultrawide zoom range but is rather hefty. About $200 less than the 12-24 and I haven't seen any reason the pentax is better (although it's been widely debated). My rec to the original post since they like the zoom that they currently carry and it's supposed to be good at 16mm. This wouldn't duplicate the range as much like the 15mm or to a lesser extent the 12-24.
Zenitar - advantage cost. It has developed quite a following but I need to look at more pictures of it. Is the weight 330 grams (there's a typo in the database)? very tempting

If I didn't discuss a lens I either haven't researched it or seen enough pictures.

Last edited by abacus07; 12-12-2010 at 09:10 PM.
12-12-2010, 08:46 PM   #19
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QuoteOriginally posted by abacus07 Quote
I voted for the 15mm because of the way the poll is titled. I personally don't see much reason to get other than for its compact size. If you/your wife is happy with a zoom on your camera then the sigma 10-20 is a great lens for a great price. The Zenitar 16mm FE is developing quite a following as a low cost alternative and I need to spend some time looking some pictures to determine how much I like it.
+1 Unless you don't mind the extra weight, the 15mm really is the way to go IMO. 15mm for landscape and city architecture without the extra weight!

12-12-2010, 09:10 PM   #20
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My apologies for posting it in the wrong forum - the combined effect of a late night, with the ability to open multiple tabs

I read each and every of your replies and i'd like to thank each of you for your comments. To substantiate my question, I use a k-5, and my current widest is a Tamron 17-50mm.

To Ivan, I am aware that the 10-17 is a fisheye. While a fisheye was not my initial plan, it was included because a lookup on pictures has showed me that the Fishiness is quite low from 15-17, and I don't think I'd mind a Fishy 10-15.

To Jewelltrail, thanks for the advice. I'm pretty sure that there were many factors affecting the decision of each of the person who voted here. The factors may not apply to me, but(so) i don't mind looking at a globalised result in terms of popularity, all factors thrown into the mix.

To idkjai, ok, if size is not a factor for you(it isn't for me), then what would be your choice?

Another thought - Which lens is the downright sharpest? Is it the DA12-24 like what i perceive around here? It appears that people are steering away from it because of it's price - If you had no restriction on budget, would that be your choice?

Sincere thanks to all of you once again.
12-12-2010, 09:34 PM   #21
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ohyoulovemeIf you had no restriction on budget, would that be your choice?
I think the Sigma 10-20 is at least as sharp as the Da 12-24 & sharper than the 15. If price did not count, I would still buy the Sigma 10-20mm.
12-12-2010, 09:47 PM   #22
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I think I'm entering the market for a rectilinear ultrawide for my K20D. I need to accumulate more cash. Oh darn, gotta sell more old lenses...

What I have in that neighborhood now are the DA10-17 and the Zenitar 16/2.8, both fishy. The 10-17 is what led me to Pentax in the first place, but I use the Zenitar more because it is noticeably faster at 16mm, very useful in not-bright indoor situations. When traveling, the 10-17 rides in my backup bag, while the Zenitar has a permanent place in my carry bag. The 10-17 is more flexible, the Zenitar is handier, at least for me.
12-12-2010, 09:56 PM   #23
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The 10-20 for me is the one that gives me the greatest creative flexibility. It trumps the 8-16 because it can use filters (esp. polarizers, grads, etc.), which can really make a difference in ultrawide photography. It's also capable of going as wide as I could reasonably want to. In fact, I often find that it looks cartoonish through the viewfinder until I've got the composition just right. I'm usually more comfortable with it zoomed-in slightly (12-15mm-ish), but there have also been times where I really wanted to "go nuclear" and go out to 10mm to exaggerate the perspective in a way that worked for the shot (i.e. not just to fit it all in). Also, being a zoom, it gives you the flexibility to move the camera back and forth, while adjusting the focal length until you get the composition and leading linds you really want. I've even used this technique to hide distractions behind my subject. Yes, it's heavy (and frankly, not as aesthetically appealing as the DA 12-24 or the DA Limiteds), but as a creative and photographic workhorse, it's tough to beat. When you factor-in it's price being less than the alternatives, it's no wonder that it's so popular.

12-12-2010, 11:42 PM   #24
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I had the same dilemma a while back when shopping for a UWA. At the end of the day I chose the

I had considered the sigma 10-20, sigma 8-16 and the tamron 10-24mm. The sigma 10-20mm and tamron 10-24 are well regarded in terms of UWA lenses. The 8-16mm whilst tempting just came out and reviews were scarce.

The images are very sharp, even in the corners (even @ 100%). You have to be careful of CA and purple fringing though. But once you get the hang of it and its limitations, it is a spectacular lens.

It is currently my most used lens along with the M50 f1.4 - see the landscapes sets for examples of the lens in action
12-13-2010, 06:49 AM   #25
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QuoteOriginally posted by ohyouloveme Quote
To idkjai, ok, if size is not a factor for you(it isn't for me), then what would be your choice?
Hmmm, if weight was not an issue, then I would most likely go for the sigma 10-20
The 12-24 would also be a choice but given that the 10-20 is $200 cheaper and performs as good if not better optically than the 12-24.
(If anything people have said the 12-24 has CA - not a big problem with PP)
You can probably find a nice copy of the sigma here at the marketplace for about $400-450. The 12-24, probably about $600-650.
Also, the extra 2 on the wide end would also make a HUGE difference IMO - and if I were to do landscapes, the 10mm could really be utilized.
IMO, I see the sigma as the biggest bang for the buck in terms of build quality/optical quality/versatility in the bunch - so the sigma 10-20!
Hope this helps!
12-13-2010, 07:11 AM   #26
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Of the lenses on your list, the DA 15mm is the only one I own so I guess that's my vote. It was agonizing to sell the Sigma 10-20mm but it was just too cumbersome for me.

Last edited by dadipentak; 12-13-2010 at 08:08 AM.
12-13-2010, 07:13 AM   #27
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Size and weight can be an issue with the better quality long lenses, but it hardly an issue with me for anything under 100mm.
12-13-2010, 07:15 AM   #28
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I voted with my $ for the DA14 and love it, I'd still buy it if I was choosing today (though the DA15 may get me on size)
If I was to choose a zoom in this range (kind of pointless I can zoom that much with my feet or change lenses) it would be the 12-24 as my other Zoom is 24-70
12-13-2010, 07:20 AM   #29
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12-13-2010, 08:30 AM   #30
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I voted for the Pentax DA 12-24. But if you can't afford that, opting for the Sigma 10-20 f/4-5.6 makes sense. That doesn't mean I can't see the appeal of the DA 15 Limited. But the 12-24 is very good and very flexible - and not as large and heavy as some people seem to think. And, for those with the DA 16-45 (or even the DA* 16-50) who are concerned about softness or distortion in their lenses at 16mm, that focal length is reached in the middle of the 12-24's zoom range. Again, this choice is if you can have only one of the lenses listed in the poll.

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