① memo 20180315 ~ Sensor ~ First shot yesterday with a new Sony Alpha A7 mark III camera , inspecting the sensor for dust over the blue sky, and focussing on some clouds – using a Sony FE 55mm F/1.8 prime lens at F11 with continuous autofocus. Later that day of testing and customizing this camera , I learned this new camera’s image quality probably equals the quality in low light of my Sony A7S mark II camera (with the Sony FE 28mm F2 prime lens) , and with a far better focussing experience with this camera/lens combination – accurate portrait auto focussing in the dark – a delight to use !