A:AnswerYou need to buy the adapter separately to use lenses other than RF lens. My EF and EF-S canon lenses as well as Tamron and Sigma 150-600 lens works well with the Canon adapter.
A:AnswerYou will need a higher power USB-C PD source, or it will not work, or you can use an LP-E17 Dummy Battery cabled to an external battery pack or AC Adapter.