Pentax K-50 review: attractive performance but is there any improvement on earlier iterations?

By Kevin Carter - Monday July 22 2013

Sensor Review
Introduction | Pentax K-50 sensor performance | Pentax K-50 versus competition | Conclusion

Pentax K-50 vs Pentax K-30: same sensor, same DxOMark sensor scores…


Against its predecessor the K-30, the new 2013 model achieves very similar results. Indeed, they’re close enough to confirm that the firm is using the same sensor in both models. 


Although the K-50 boasts a new image processor and a higher maximum sensitivity setting of ISO 51,200, there has been no real improvement in raw noise levels over the K-30 or earlier K-5 II, which share the same sensor.

No advance over since the K-5 II is slightly disappointing when you consider that Nikon has moved on from this sensor (it was used the Nikon D7000) but it’s an excellent performer all the same.

Pentax K-50 vs NikonD5200 vs Canon EOS 700D


Compared with similarly priced offerings from rival makers, the K-50 can easily out-do the $749 (body only) Canon EOS 700D/ Rebel T5i achieving quite a substantial 18 points more in the DxOMark Sensor Score over that model. At base ISO the sensor has a Color Depth equivalent to around +1.5 stops more than the Canon, and a wider dynamic range of +1.8 Evs. The difference in Low light scores are lower, something that Canon still does relatively well with despite the older sensor architecture but even then the Pentax has close to +2/3 stop advantage.

Against the $799 (body only) 24M-Pix Nikon D5200 the Pentax sensor is good but not quite up to the best. Not only is there a pixel count advantage but the Nikon is ahead in every category. The most significant is the +0.9 Ev extra in dynamic range, though in real world use the differences are less than the figures suggest.