Gerald Undone posted his full guide for the Sony a7S III for exposure, picture profiles, dynamic range, color modes, gammas, ETTR, zebras, low light, and S-Log3:
And this is a new A7sIII video by Sidney Diongzon:
ThePhoBlographer reviewed the A7sIII and concluded:
So, who is the Sony a7s III for? As you all know, the Sony a7s III is not designed as a photography forward camera. However, it’s still a competent stills shooter. The Sony a7s III is perhaps the closest thing to a great all-rounder for documentarians who shoot video and stills. The same can be said for photojournalists too. The small size of the images (JPEGS are roughly 7MB) are the perfect size to be sent quickly and efficiently to editors. The photos have more than enough detail to be printed in newspapers and magazines, as long as they are not huge. They are also more than good enough to be used online. Modern photojournalists and documentarians need to shoot video too. The Sony a7s III is one of the most versatile cameras around for video production.