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03-01-2009, 08:28 PM   #1
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Sigma 10-20 F4-5.6 or Pentax 12-24 F4?

OK first feeble post for me ... I can't believe that this choice hasn't been discussed before but I did try to search! I just bought a K20, coming from film and need to rationalize my lens inventory - so naturally I need to add something really wide. I have read the lens reviews on both of these lenses and had a quick look at both at the store as well. Both seem to be very well made. From where I sit right now it seems that the Sigma is the way to go - on price alone if nothing else - but the thing that drew me away from Nikon about 10 years ago was the affordability and quality of the lenses, flashes etc of the Pentax system. I am open to opinions; given that I probably can't go wrong either way. Thanks!

03-01-2009, 09:28 PM   #2
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Hi,

Oh, it has been posted before...

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/33025-pentax-1...a-10-20-a.html

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/32000-sigma-10-20-da12-24-a.html

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/31919-da-12-24-shots-anyone.html

And other misc. ones here...
PentaxForums.com - Search Results


Personally, I have the Sigma 10-20mm on my radar for my next lens purchase.

Welcome to the forum!

Jason
03-02-2009, 06:29 AM   #3
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if you are coming from film, I might make one additional suggestion

sigma 12-24.

they might be hard to find, but are reported to be a little better in sharpness and IQ than the 10-20, AND it is a full frame lens.

personally I have a 10-20
03-02-2009, 04:18 PM   #4
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If you are not in a hurry, new Sigma 10-20 F3.5 HSM soon to be announced at PMA might be worth waiting. Wider and faster than Pentax. No word on price though.

03-02-2009, 09:37 PM   #5
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any news on the tokina 11-16/2.8?
03-02-2009, 11:04 PM   #6
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QuoteOriginally posted by meand myK20 Quote
OK first feeble post for me ... I can't believe that this choice hasn't been discussed before but I did try to search! I just bought a K20, coming from film and need to rationalize my lens inventory - so naturally I need to add something really wide. I have read the lens reviews on both of these lenses and had a quick look at both at the store as well. Both seem to be very well made. From where I sit right now it seems that the Sigma is the way to go - on price alone if nothing else - but the thing that drew me away from Nikon about 10 years ago was the affordability and quality of the lenses, flashes etc of the Pentax system. I am open to opinions; given that I probably can't go wrong either way. Thanks!
I'm no speed daemon, but f/5.6 is slow even for me and I hate variable aperture lenses (side-note: both of my variable aperture lenses were gifts, in fact, so usually, I don't complain), because 99% of the time, I'm in either Av or M modes. I would definitely go with DA 12-24 f/4 for the constant aperture and superior IQ. EDIT2: If you don't care about SDM/HSM, then DA 12-24 f/4 + DA 16-45 f/4 sounds like a great zoom kit for a good price.

If you mainly shoot in Av mode, avoid zooms with variable aperture, unless you're really desperate! If they weren't gifts, I would sell mine. EDIT: I'm actually reminding myself of my rule here, to prevent me from wasting money on the new SIGMA 50-200mm F4-5.6 DC OS HSM.

EDIT3: To confuse matters further, consider also DA 14 f/2.8! It may cost you as much as a DA 12-24 f/4, but you may not be able to find an equivalent old prime for much less money.

Last edited by asdf; 03-02-2009 at 11:15 PM.
03-03-2009, 05:40 PM   #7
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And now look what Sigma did to confuse us even more - 10-20mm @ f3.5

https://www.pentaxforums.com/forums/pentax-news-rumors/52903-new-sigma-10-20-f3-5-constant.html
03-03-2009, 08:49 PM   #8
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Thanks everyone for helping me find previous posts (great pics!) and for sharing opinions.
The new Sigma sounds interesting but at what price??? I like the speed of the DA and wider angle of the Sigma. Open to more opinions; want to make the right choice! PS I prefer the zoom over a prime for easy travel use.

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