This will allow you to use a Carson 5x magnifier on the following mirrrorless cameras:
•Nikon Z6/Z7,
•All Sony Alpha Cameras
•Canon EOS R,RP,M50,R5/R6
•Panasonic GH4, GH5, S1
•Olympus
•Fuji X-T3,X-T30,X-T4
This is for the loupe extender only, the Carson magnifier must be purchased separately: the Carson Magnifying Loupe