So you have backed up your footage and you are now ready to edit. If you have the computer to handle it and you know you will be the sole editor from start to finish on the project, then, great, proxies are probably not necessary. But, if your computer struggles at the sight of compute-intensive H.264 files, especially 4K or higher ones, or if you have even the inkling that the edit might be sent to someone else for coloring, audio, final touches, whatever, then proxies are a very good idea.… TL;DR creating proxies from your footage
The default ingest settings inside the Adobe Premiere Pro Ingest Settings tab are not very good, especially on a PC where Pro Res is not an option. To fix this, I created two presets within Adobe Media Encoder that convert footage, either 23.976 fps or 59.94 fps, down to 1080p DNX LB proxies at a target bitrate of 36 Mb/s.