Originally posted by hypermodern I'd be keen to know your thoughts, I might upgrade from K50 to KP one day. Is the Sigma 85mm f1.4 as good as people say?
So here's a few from this morning's walk which I think illustrate some of the strengths and weaknesses of the Sigma 85mm
Strength: sharpness - it can cut your fingers (admittedly, I exaggerated a bit in post but you get the point) at a few stops down, this is F6.3
Strength: sense of 3D or separation between subject a background. Also, strength: color rendition (even though this went through DarkTable, the color of the OOC jpeg is also lovely)
Weakness: sometimes slightly "nervous" looking out of focus areas with highlights (see the area left of Noam's head):
I had an idea that the combo KP/Sigma was front-focusing a teeny tiny bit but when I set up my focus finetuning chart I could not confirm it. Potentially purely incidental.