While popular with vloggers, Panasonic’s mirrorless cameras have been held back from true greatness by the lack of a phase-detect autofocus system. Finally, the company has rectified that problem with the launch of the S5 II. It has a new 24-megapixel sensor with phase-detect pixels that should get rid of the wobble and hunting that have plagued the contrast-detect AF on Panasonic cameras over the years.