I currently am using a Leica Q (typ 116) with a fixed 28mm Summilux lens that has a maximum aperture of f/1.7.
I pared down a significant collection of lenses and bodies to focus on this particular camera, as I find that the limitations of one camera and one lens actually help me see the photos I want to take instead of worrying about which camera or lens to use. You will see photos here that were taken with Canon or Sony bodies and lenses, but newer work will be with the Leica.
For my infrared work I have used a Sony A7R converted to 590nm IR. Newer photos will be taken with a Fuji X100f converted to 590nm IR.
I use F-Stop and Peak Design bags and Really Right Stuff tripods and camera quick release plates.