Unlike a digital SLR, compact cameras with interchangeable lenses do not use a mirror to bounce an image of the viewfinder lens (on film cameras, the mirror flips up and out of the way to capture an image in the film). Rather, these cameras are based on an electronic viewfinder.
Micro Four Thirds camera, created by a joint venture between Panasonic and Olympus four-thirds sensor model and are included in this category.
Most compact cameras with interchangeable lenses are sent wide angle prime or zoom lenses base offering a focal range of about 16 mm to 55 mm, suitable for close-ups and standard snapshot. However, the real benefit is that you can easily replace the standard lens and snap a distance of 200 mm telephoto lens, and sports photography. Companies like Sony also offers adapters for some of the compacts that allow interchangeable lenses designed for digital SLR larger.
Note, however, that a fast, long focal length lenses may cost more than the camera itself - it is not unusual when you consider the best of the lens, the sharper the image captured and capabilities of the camera ( speed and resolution are not based on megapixels alone). larger lenses can also add to the weight of these cameras, which are usually manufactured with a lightweight and durable metal compound such as magnesium alloy.
Points to consider in the selection of a compact camera with interchangeable lenses including the size of the image sensor (which vary in size but are much larger than sensors found in point-and-shoot and ultrazooms), the size and quality in the viewfinder I the presence of an optical viewfinder, and the speed and accuracy of autofocus mechanism (which may be slower than the technology available to the DSLR). Also check out the functional "feel" of the camera, since the designs can vary and it is better to have a device that fits comfortably and can be used.