A:Answer Do you understand how a single lens reflex (SLR) camera works (whether a film SLR camera or a digital SLR (i.e. DSLR) camera)? They use a mirror to transmit the image from the lens to the viewfinder/LCD screen (no LCD screen for film cameras), which must flip out of the way of the sensor (the film is the "sensor" for film cameras) when taking a picture. A mirrorless camera does not use this scheme, so without a mirror it seemed natural to call it "mirrorless" to distinguish it from DSLR's. At some point the older technology becomes rare and few people will remember, and then you'll have people asking why is it called "mirrorless". In any case, this really isn't the proper forum for such general questions. There are plenty of websites and videos which more clearly explain the difference using pictures / diagrams so it is easier to understand. Learn to use the internet.
This is a more than 5 year old camera and a low end model at that. For sports action shots you would be better served with a newer model with better auto-focus performance. DSLR's are "dying" in the marketplace and you'd be wise to choose a mirrorless camera.
