Micro 4:3

OM has introduced a new spec for 4:3 system, camera body cam be much smaller, and the "Mount to Focusing Plan" distance is reduced to 20mm, great for modifying old lenses player:

Micro 4:3

After entering the digital photography world, a lot of people (like me) are favor to put the old lenses on the newest DSLR body, to enjoy the great sharpness & tone range from the old lenses, plus the easyness of the nowadays digital photography.

You may know some old school lenses are not able to modify to use on Nikon or Canon DSLR, even the standard 4:3 are not alright, since the "Mount to Focusing Plan" for the above systems are greater than the lens design, such as the great Leica M, Contax RF lenses, OM Pen-F, Pentax Auto 110, and most movie lenses.

Even some lenses can be modify to fit Canon or Nikon DSLRs, but that is an extra cost need to paid to those tec masters, and also need to wait for weeks or even months in order to play with the reborn babies, such as the great German Contarex lenses. 

After the micro 4:3 has been introduced, theridically, a 20mm "Mount to Focusing Plan" distance, should have good enought space for those masters to work on adapters to make most RF lenses (Leica M, Leica M39, Contax RF, Nikon-S, Cannotnet, etc) and the half frame camera lenses (OM Pen-F) to fit on a Micro 4:3 camrea body.  Movie lenses for 16mm may be ok too. However, lenses for 110 and 8mm movie lenses are still out of the picture due to the coverage prower are smaller than the 4:3 format.

Hope OM will make their Micro 4:3 system faster, and I'm waiting for a model with the body build-in anti-hand shake feature.