Sigma 50-150 vs Canon 55-250
Well, did some more test shots today in fairly good light. AF is reasonable, no back focus as initial concern but I would say not as perfect as I would like to. Sharpness is also a tad lacking but fine for my need. At this point, I can save some hassle sending the lens for calibration.
Also attaching a shot on my kid. When the AF is spot on, it can be good but it is not easy. maybe I need to practice more.