Samsung NX200 Manual Book page 14

Samsung NX200
Guide Book
The mirrorless camera concept
Optical viewfinder
(OVF)
Pentaprism
Image
sensor
Mirror box
Display
Image
sensor
AF sensor
45.5mm(GX-20) 22.5mm
< NX200 >
< Digital Single Lens Reflex >
Mirrorless cameras have a larger image sensor than compact digital
cameras with a performance similar to a DSLR camera. Unlike a DSLR
though, both mirror and optical viewfinder are removed to reduce the
depth and size of the camera significantly, and users can take photos
using the display and electronic viewfinder on the back of the camera
instead.
Samsung's NX200 is a 20.3 megapixel APS-C mirrorless camera that has
an AMOLED display and no optical viewfinder, and it is smaller and lighter
than the NX10 and the NX100.