Micro four thirds is a camera standard or design created via a partnership between Olympus and Panasonic. The design does away with the mirror and prism system found on traditional DSLRs so the result are very compact cameras.
Blueberries - P 20mm 1-7mm
Panasonic 14-45mm f3.5-5.6
Camera mounts can be used to marry traditional or legacy lens to M4/3 cameras or of course the growing line of lens created for the M4/3 design are available from Olympus, Panasonic (with lens designed by Leica).
One of the big advantages of the M4/3 camera is the compactness of the lens. Because the len sits closer to the sensor, the effective focal distance doubles. So a 20mm M4/3 lens is the equivalent to a 40mm traditional lens.
Quite a number of the available M4/3 lens turn out to be a huge cost savings when you compare them to lens in traditional formats. For example the Panasonic 100-300mm is around $600. Compare that to the cost of a 200-600 mm lens from Cannon or Nikon.
Over the past year I've been taking images with a Panasonic DMC-G2 with a 12 mp sensor and recently upgraded to the DMC-G3 with a 16 mp sensor.
I ditched the kit lens as it wasn't sharp enough for consistent acceptance and currently have three M4/3 lens:
Panasonic 20mm f1.7 - Tiny "pancake" lens that's great for walking around town. Only issue is occasional lens flare issues in studio lights. Fantastic low light capabilities and boken or background blurring.
- This is the superior replacement to the current kit lens. Nothing overly exciting or exotic about this lens but its a good overall lens.
Dog Running - P 14-45mm
Panasonic 45-200mm f4.0-5.6
- very good on tripod. I've moved towards this as my favorite in the studio. I can get very sharp images out of this lens. Hand holding can be trickier unless you have enough light to use fast shutter speeds. A real bargain for around $250.
Using the LCD screen for touch focusing on the spot you want to focus is key to the great result. Relying on the camera to pick a focal point just ain't going to cut it.
Barnyard Chickens - P 45-200mm
So my point in writing this was to see what other's in the "M4/3 club" might think about M4/3 lens. Comment below and let me know what you think about your M4/3 lens...