I had long been looking for a fixed focal length, because they are superior in image quality to standard zoom. Having compared the different versions of Tamron, Sigma and Pentax, I first read many reviews and test reports on the lenses. After the quality of the Pentax was 50 / 1.8 consistently assessed with good Ergebissen, decided ultimately because of the good price. A pricing as I imagine and not beyond good and evil as with many other lenses. Once I held the glass in his hands, the first impression was quite positive. Quality and solid workmanship. The criticized by some photographers plastic bayonet I do not see as a disadvantage. He is very solid and is certainly also 1,000 changing lenses and more. After initial tests convinced me the image quality. Even at full aperture, the sharpness is more than satisfactory. At f5.6 and f8 sharpness is excellent and much better than my 17-50-ies. Class lens with a great price -> Buy recommendation.
