Sigma 30mm lens for Pentax K-7, K-5, K-5 II, K-5 IIs etc
Just wondered if anyone has this Sigma 30mm lens?
I have seen quite a few truly excellent photos taken with this lens. I'm just wondering what you'd consider to be it's plus points and any negatives?
Also how would you say it stacks up against the Pentax primes in terms of quality, resolution, dynamic range etc? Are there any Pentax primes you would say the Sigma 30mm would give a run for their money and compete favourably with? Would you rank this Sigma higher than any of the Pentax Primes and if so which ones?
Born in the United Kingdom of Great Britain. I reject EU citizenship.
Pentax Espio Mini / Panasonic Lumix DMC-LX5 / Hoping to get a Pentax K-5 dSLR at some point with a Prime Lens around 31mm!
Pentax has its 31mm f/1.8 limited, which is as close as it comes with respect to length and speed. The Pentax is a FF lens, the Sigma is not.The 31 is much more expensive: build is flawless, it's sharp to the edges wide open, and has beautiful bokeh - a very difficult combination especially on a wide-angle lens (on FF).
Sigma primes, and this one especially, focus on center sharpness. The edges are not too good wide open. This may not be a show stopper however. It's by no means a bad lens.I had a look at it a couple of years ago and decided to stretch for the Pentax.
Sigma just announced a higher-end line of primes including a 35mm f/1.4. I think this would be a more evenly-matched comparison.
Pentaxian with chronic LBA
By any chance, are you asking because this lens is available at both Amazon and B&H for $349 now? (back-ordered though). Most people consider that to be a good deal money/quality wise. Especially since we are stuck with crop bodies only and cannot fully appreciate 31mm LTD which is more than double the price even though being a slower lens (a stellar performer, still). Another down side for Pentax and Min0lta/S0ny mount version of this lens is no HSM or AF/MF switch ;-( We should really be charged less since those features come at the same price for Can0n/Nik0n/Oly/Panas...
The sigma is great, at 1.4 corners drop of but is extremely sharp from 2.8 and has great bokeh
Angad S. aka gooseta
K5iis with DA 17-70/4, 35/2.4, M 50/1.7, Tamron 70-200/2.8
Sony A55 with Tamron 17-50/2.8, 200-500/5-6.3, Samyang 8/3.5
This is one of my favorite lenses, at $349 its a steal. That said its not a lens that you use for everything, when its out of its element it shows. It is stunningly sharp in the center, with a sort of dreamy curved focal plane rendering that blurs out to the corners. I have some portraits from this lens that are some of my all time best.
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