EOS 6D Mark ii Upgrade Suggestions for Professional Product Photography

[denomane]

Hello, 

I'm looking for some thoughts on what mirrorless Canon camera I should upgrade to. I am a professional lifestyle product photographer, primarily using natural light and have been using a Canon 6D Mark ii for about 6 years. I know it inside out and it works well for me but I know it's time to upgrade! 

I need a camera that:

- works well in low light conditions

- has a flip screen

I mainly shoot still products so I don't need a camera for fast moving items/long distance etc. 

As I transition to new kit, will my existing lenses work as well with an adaptor or is it not worth doing?

Thank you so much in advance.

[TomRamsey]

Being that you are shooting professionally, I assume you may have a backup. But if you do not have a backup it would definitely be a good plan to buy a new camera and relegate the old one to the backup spot.  Then it could be very nice to be able to use two setups with different lenses and backdrops to improve your workflow.