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06-01-2011, 10:10 PM   #1
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Sigma 15 mm 2.8 VS Pentax DA 15mm Limited

Sigma 15mm with a rating of 10.0 (4 reviewers) and average price of $366
vs Pentax DA 15 mm with a rating of 9.4 (40+ reviewers) and average price of $645
which one would you choose if you currently have neither? How is their IQ compare to each other?

06-02-2011, 12:59 AM   #2
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You're right about the average price in the Lens Reviews section, but if you look at current online prices Sigma is listed at $610 new, and Pentax at $510, so that would be more appropriate figures to compare, unless you wanna buy it used, in which case you need to do some digging to see what is around (I am currently in the market for the 15mm Ltd and these rarely come up in Pentaxforums Marketplace, and when they do they are sold within 15 mins so best of luck if you decide to go that way ).
As for the IQ, you’ll get better advice from those who actually own these guys, I'll just say that Sigma is a fisheye, so when you defish it with a software it’ll give you a FL of cca 12-13mm.
Me, I chose Pentax, because I’m not in need of a fisheye and I like Pentax rendering more, but you need to tell us something more about your shooting preferences and why did you chose to compare a FE with a non-FE (probably because you are interested in this FL??), and then you’ll get some better advice.
In the meantime, you might wanna read other threads on these lenses, like The 15mm Limited controls my mind thread or Stuck trying to decide on UltraWide lens thread.

Last edited by 1marek; 06-02-2011 at 03:46 AM.
06-02-2011, 01:35 AM   #3

Join Date: Dec 2007
Location: Prague
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yes, fisheye vs rectilinear lens cannot be compared directly based on focal length. That is a very misleading parameter.
If you are looking for f2,8 ultrawide, I can fully recommend the Pentax DA14. I love this lens.

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