User Activity

I received my R5 yesterday and took it out for a test today. I have found that the Lens IS is always active even when im not pressing any buttons. I would like the IS to only be activated when im pressing down the shutter button but i haven't yet fou...
When using the AV mode on my canon 1dx ii with the 500mm f4 it determines the shutter speed based on the focal length used for hand holding which means it usually aims for around 1/1000th of a second but while it aims for this said shutter speed it r...