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In late 2008, went on sale the first camera of its kind, the Panasonic Lumix DMC-G1, which inaugurated the Micro Four Thirds system and, months later, would be supported by the Olympus E-P1. Obviously, the main intention of the manufacturers was to provide use with cameras that allow any kind of lens adapter, but last time we have seen that this motivation has led many fans to get one of them, especially since the Currently some models are just over 300 euros.

Panasonic and Olympus, with models like the E-P2, were the first to go for a digital SLR interchangeable lenses without a mirror.

It was not until mid 2010 when they landed on the Sony NEX windows to be open other systems within this new segment. Months later, Samsung was the last to join the party with its NX system.

All three systems and the four manufacturers that now compete in this market have characteristics that differ and that the point of view of the photographer looking to mount a C-mount manual focus, for example, can make them choose one or another.

The NEX-5 (above) opened the NEX system from Sony. The third protocol currently committed without the reflex mirror is headed with models like the Samsung NX10.

Panasonic and Olympus share and Micro Four Thirds sensors with a 2x focal length multiplier. The advantages of the first include its image magnification system-very useful for manual focus, and viewfinder built into some models.

In regard to Olympus, for now there is no model with built-in viewer, but it has a trump card: built-in mechanical stabilizer in the body. It also has the practical system of on-screen magnifier to magnify an area of ??the image and check the focus.

In the case of NEX Sony and Samsung NX, the focal length multiplier is reduced to 1.5 x, and also the larger the sensor generally provides better results with high sensitivities. NX Since these have been the last to arrive, the availability of adapters to this mount is still somewhat limited.