For keying a single person, one of our favourite pieces of kit is the very handy and extremely portable #Elgato #Gaming Collapsible Green Screen.
Pops up and down in seconds. Available from Amazon https://amzn.to/2Cum00B
For those editors out there, the key you can see was achieved in real time using #Adobe #PremierePro #CC2019 Ultra Key - amazing!!!! Shooting in 4K really does help achieving a professional key. If we used #AfterEffects then render time alone for this job would have taken over 30hours since the programme was over 90mins in length.