When Olympus and Panasonic released the Micro Four Thirds system they provided
the engineering to produce adapters that allowed the use of normal Four Thirds lenses. a very smart move, because it immediately opened up the library of available lenses. The Micro Four Thirds goal is SLR cameras that are smaller and lighter. The unanticipated benefit is compatibility
with hundreds of lenses we all thought we would never again use.
The fact is, the sensor size on the Four Thirds and Micro Four Thirds is identical. The difference is that by eliminating the mirror, the back-focus distance is less in Micro Four Thirds cameras, and the ability to adapt foreign lenses became wide open. You cam still use your favorite old lens from now-retired 35mm SLR isn’t through yet. The same
goes for all Leica screwmount, M- or R-series leness. By using the right adapter, they can still be used on one of the new state of the art Micro Four Thirds cameras
You can now adapt Canon, Leica, Olympus, Nikon, Panasonic, Pentax, Sony, Voigtlander Zeiss and Four Thirds Lenses to Micro Four Thirds Cameras and Four Thirds Cameras
You won't have complete functionality, depending upon the lens and to a certain degree, the adapter brand you get. You’ll be manually focusing, and setting the exposure can require some effort to learn. But what a charge to use that old 35mm f/2 Leitz Summicron that you never again expected to leave the cabinet.
Micro Four Thirds cameras are available from Leica, Olympus and Panasonic. These companies make cameras that deliver solid performance at prices that are affordable. Popular models include the rangefinder-style Panasonic Lumix DMC-LX100 and the retro-looking Olympus OMD-EM5 II. These companies also make sub-$500 models. And don’t pass up the first generation Olympus E-P1 camera or the Panasonic DMC-G1 camera.
I'm assuming that you possess a legacy lens. If it’s one of the top brands you’re in luck. For more than 60 years, Novoflex has been helping photographers adapt lenses. They now offer Micro Four Thirds adapters for: Canon FD, M42 screw thread, Pentax, Contax, Leica M, Leica R, Sony/Minolta AF, Minolta
MD, Nikon, Olympus OM, Pentax, along with T-mount (T2) mounts.
Voigtlnder also produces high-quality Micro Four Thirds adapters for in-demand models, too. Adapters are available from other manufacturers, to but I can’t haven't reviewed them. Several offer very attractive prices, especially those with names that are not too well known, and many remind us of the old adage “you get what you pay for.” A Canon EOS to Micro Four Thirds lens adapter I acquired from an online auction site fit so loosely that I needed to use the “twist and hold” approach to make sure it didn’t come loose from the camera.
Predictably, results were affected.
Novoflex adapters let you to open and close the aperture on those lenses which only contain internal aperture control. Fully rotate the knurled blue ring clockwise (viewing from the top) to assure the aperture diaphragm is open during installation.
First-rate, name brand Micro Four Thirds adapters are open tubes precision milled to exact tolerances. On one end there is a three-flanged bayonet mount which is universal to all Micro Four Thirds cameras. On the opposite end, there is a lens mount, complete with locking device. Adapters engineered for use with lenses that contain
manual aperture rings (such as Leica's M-series lenses) require no other moving parts.
Adapters that are employed with lenses that only feature internal aperture control feature a large knurled ring which is turned to fine-tune the f/stop. You should fully rotate this ring clockwise (looking from the top) to assure the aperture diaphragm is open during installation. For best results, use your tripod until you really get more expertise .
Set the camera to Aperture Priority. (On Panasonic cameras you must first locate the setup menu and advise the camera to operate without an attached lens —check your Owners Manual for precise details.) Focus with the aperture totally open. Then, just before releasing the shutter, close the aperture an applicable amount. What’s
applicable? Of course it all depends upon the subject. Let experience be your guide, and experiment until you get the hang of it.