Further readings for the Pentax smc DA 40mm f2.8 XS
To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.
The Pentax 40mm f2.8 Limited is one of two pancake type lenses from the firm and although this model is just 15mm in length it’s actually the larger of the pair. Read on to find out how well this refreshed HD version performs.
Announced this past June alongside the Canon EOS Rebel T4i DSLR camera, the new Canon EF 40mm f/2.8 STM is an ultra-slim, entry-level pancake lens that uses Canon’s Stepping Motor Technology (STM) to enable extra-quiet continuous autofocus, making it well-suited for video shooting.
The new lightweight smc Pentax-DA 40mm f/2.8 XS strives to be a versatile weapon in a photographer’s arsenal of lenses. But the dainty lens, weighing only 51 grams and measuring a slim 9mm in thickness, needs a little more beef – at least that’s what DxOMark determined after putting the lens’ optics through our rigorous tests.
Here is a new series featuring the results of Pentax prime lenses mounted on the compatible camera with the best resolution thus far, the Pentax K5. (But as usual, you can consult DxOMark to see the results for these lenses when mounted on other compatible camera bodies, such as the Pentax K7 or Km.)
I got this lens with my K01 and have been extremely pleased with it. Its allowed my K01 to fit in a coat pocket and with the camera set to AV, F2.8, auto iso 100-6400 it takes excellent pictures for the price. I have a picture of my GTO that i took and printed 13x19 and its just stunning (though after see it in print i did slightly over do the "punchy-ness"
I received the XS last week and took hundreds of photos with it, both indoors and outdoors this past weekend. I then imported the photos into Lightroom 4, so it's possible that LR4 compensated for any lens irregularities. In any case, I saw some fantastic results in terms of color, clarity, and depth of field. The 40mm focal length was quite liberating. I'm just an enthusiast and not a pro but I love this lens. And it's so tiny there is no reason not to carry it in your bag at all times.
I am surprised to see such a poor account of this lens, given how well it has done in other reviews, e.g. Photozone.de:
"The Pentax SMC DA 40mm f/2.8 exhibits a quite harmonious optical performance combined with excellent build quality. It is capable to produce impressively sharp images across the frame straight from the max. aperture. Distortions are marginal and CAs are a non-issue. Vignetting is visible at f/2.8 but not a show-stopper. The bokeh (out-of-focus blur) is slightly sub-average and bokeh fringing can be an issue at very large apertures. The lens does also suffer from a focus shift when stopping down - this can have an impact in close focus scenarios".
I wonder if DXO's boffins are really as good at reviewing lenses as *real photographers* who recognise the practical applications of lenses.