The Mirrorless Camera
As the name suggests, there is no mirror or prism in the camera. Unlike a DSLR, there is no reflex mechanism at all. This saves a great deal of space inside the camera housing making mirrorless cameras smaller and more compact.
Advantages Of A Mirrorless System
COMPACT, LIGHTWEIGHT & STEALTHY
The latest technology has given rise to small mirrorless cameras with sensor sizes equivalent to DSLRs. Many photographers prefer more compact size cameras.
Shooting stealthy and blending into the surroundings can be an advantage in some photography situations.
Example. Candid moments can be easier to capture with a smaller camera. They are less noticeable than a big, “bulky” DSLR.
BURST SHOOTING & VIDEO
Since mirrorless cameras are built without a reflex mechanism, their systems are set up more efficiently to shoot in continuous, burst, and video modes.
Less moving parts mean more images (or frames) can be taken in less time.
A DSLR can only operate as fast as its moving parts will allow.
ELECTRONIC VIEWFINDER (EVF)
A what-you-see-is-what-you-get viewfinder. An electronic, pixel-by-pixel map of the scene that’s in front of you. A photographer can make changes to the exposure settings and see how a photo will look BEFORE it is taken!
DSLRs with an OVF system show you the scene as it looks to the naked eye, without an electronic preview. Photographers with only an OVF don’t have “what you see is what you get” view, and tend to “chimp” more (sneak a peek at their display screen after each shot).