This lens has several shortcomings. It has a pronounced coma and the focus barrel requires a considerable amount of turning to get it right, thus making it challenging to fast focus when you need to. Camera sensor clearly influences colours’ rendition. Despite the ‘personality’ of this lens, the overall picture’s feel is clearly (to me, at least) that of the classic ‘cold’, slightly bluish Pentax (or, should I say, Sony) sensor. At f4 (all the images published here were taken at this aperture), the bokeh is pleasant. Nothing exceptional, but for a lens that sells for around 15 euros, the results are good enough. That said, a core question, asked…