Comparing Olympus 4/3lenses to FX "Full Frame" offerings

Started Jan 25, 2014 | Discussions thread
JiminDenver Veteran Member • Posts: 5,190
The sad thing is both sides are right

Which is often the case with equivalency discussions because in a sense we are comparing apples to oranges.

Does a full frame lens deliver more light to the sensor box than a 4/3s lens....YES

Does that extra light amount to a hill of beans on a 4/3s sensor...NO

Why? Because it is not light from the part of a full frame scene that a 4/3s lens CAN see. It is the light that would deliver the REST OF THE SCENE to a full frame sensor. That's why all that extra light doesn't change the shutter speed even if you use a full frame lens on a 4/3s sensor.

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