Four Thirds Standard in DSLR is a
matched standard for lens mounts. It was present from the beginning
regardless of lenses, cameras or sensor sizes. This allowed to solve
compatibility issues with legacy components and the compromises in the
design of new components. The first such camera with Four Thirds
Standard, was the Olympus E-1, which was introduced in 2003. The
standard of
Four Thirds Standard defines, among other things; the sensor dimension, the lens mount including the protocol, the imaging circle, the flange focal length (38.85 mm), optical requirements such as the maximum angle between incident rays on the sensor.…
Four Thirds Standard defines, among other things; the sensor dimension, the lens mount including the protocol, the imaging circle, the flange focal length (38.85 mm), optical requirements such as the maximum angle between incident rays on the sensor.…
Please read more- Four Thirds Standard in DSLR
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