The Four Thirds system was developed by Olympus as well as Kodak to enable cameras to be compatible with camera accessories and lenses from any make, not just one company. Both these companies are now coming up with DSLRs that are compatible not just with lenses made by their own companies but also those of other companies. For instance the Olympus E620, which is a Four Thirds camera that comes with resolution of 12.3mp and comes with a kit lens that offers 3x zoom, ranging from 14mm to 42mm.

Design and Functioning

For a feature loaded DSLR, which is also compatible with any lens irrespective of the make, the Olympus E 620 is rather lightweight at 520gs. It comes with six in-camera Art Filters, which allow the user to replicate dramatic effects as the shot is taken, using the Autofocus Live View LCD. One can choose from Pop Art, Soft Focus, Pale and Light Color, Grainy Film, Light Tone and Pin Hole Camera filters. Its Shadow Adjustment Technology brings out more details in shadows, capturing scenes exactly as they are seen and ought to look like. Also, its On-screen autofocus with Live View works as seamlessly as a point-and-shoot to display subjects, in focus, on the LCD the instant the shutter is pressed half way. This camera is compatible with Compact Flash cards of Type I and II, Microdrive as well as xD-Picture Card for storage.