For a while I've been using the weaker front camera of my phone to record my little guitar videos because I can monitor the view on the phone at the same time. If only i can use the rear higher quality camera.
Lo and behold, after a moments clarity an epiphany emerged. Screen mirroring to the laptop to monitor what the phone is pointing at. Doh, obvs.
Probably very late to the party but after a quick search and evaluating others, I discovered scrcpy
Works superbly, very lightweight, does exactly what i needed. Mirrors the phone screen , via usb, with no perceivable latency and i can control the touchscreen of the phone via mouse pointer clicks.
So now i can use the higher quality of the rear camera to record videos , seeing all that my phone sees from the comfort of my laptop, controlling it with mouse and connected via usb cable for constant power. Splendid. Welcome to 2018.