28 December 2009

DA 12-24mm f/4 - the Pentax wonder wide-angle

When a group of friends met to see a friend off to study overseas to a US university, who would have thought it would lead to an ultra wide in my collection. As the group were keen photographers the talk quickly centered on lenses, their likes and dislikes, the respective merits of different brands and like all good discussions, the question "What would be a good ultra wide angle?" came up. For our seasoned Pentax expert who was at the gathering, the answer seemed simple enough: the Pentax DA 12-24mm f/4.





Two weeks later, and I'm in total agreement. You see that friend going overseas had to transit in Korea en route to the US and a quick phone call later, he's snapped up every copy of the 12-24mm in the airport duty free shop because it was going for a nice price. It was the DA 12-24mm but rebadged as the Samsung Schneider D-Xenon 12-24mm f/4. The name, colored ring and exterior grip pattern's a little different but essentially the same lens where it counts... the same optics and the same multi-coating.





So what exactly warrants the fine reputation of this rectilinear ultra-wide? It can't really be an obvious winner in the value stakes because it isn't exactly cheap. It doesn't go as wide as the more affordable Sigma 10-20mm in terms of angle of view. But it's a winner in my book because of it's stellar sharpness even from f/4 and distortions are well controlled. The zoom range is a little more versatile than the Sigma, especially at the long end and the overall build quality is good. To me the true test is flare performance because with that wide angle of view, one will quickly encounter having bright light sources like the sun in the viewfinder. In this area this lens really shines.




To me this lens definitely has a place in the bag for the photographer shooting scenic landscapes, architecture, documentary, street or travel. With the wide angle of view, ensuring the composition or horizon is level is crucial. This is where the K-7's built-in electronic level display comes in real handy. The lens isn't small and the large 77mm filter ring means buying filters can be pricy (I use the excellent Hoya HDs). It does provide a new way of seeing and users who haven't used it enough can be initially baffled on how to tame the wide angle of view and perspective. But spend time with it and it will deliver stunning pictures.



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