A mirrorless interchangeable lens camera (MILC, or referred to as a "mirrorless camera") has an interchangeable lens without a mirror reflex optical viewfinder.
It is designed to have the advantage of smaller size, lighter weight, and lower cost than SLRs, while users can still swap lenses, unlike most compact cameras.
It will not break your bank or cause any type of myalgia - the best choice for female or less muscular people.
The following is an illustration of the SLR.
MILC does not have the mirror reflex optical viewfinder. The lights reach the sensor through the lens directly.
Currently MILC has sensors of 3 sizes:
Major manufacturers include Olympus, Panasonic, Sony, Fuji, Nikon.
With its smaller size, portability, and decent image quality, it is the perfect camera to carry around.
Here are some nice accessories for MILC:
This site Mirrorlessons has a lot of information about MILS.
More reading: The Latest Compact Mirrorless Models - 2016