What is micro contrast, and why is it important? How is it different than regular contrast?
Matt Grum mentioned it in his answer about larger-format cameras:
There are other advantages to medium format other than image resolution... better micro contrast on account of the format size... the genuine advantages of format size in terms of sharpness and micro contrast... will always hold out.
This is the first I'd heard of the term.
Answer
Micro-contrast refers to contrast as measured between adjacent or nearly adjacent pixels. It is often perceived as sharpness.
Contrast usually refers to the contrast of the entire image which is an indicator of the captured dynamic-range.
It is possible for an image to show high micro-contrast (being very sharp) and low image contrast (being a subject with very uniform tonalities).
The converse is also possible, as any scene which exceeds the dynamic-range of a sensor will have high contrast but if shot with a poor lens or at an aperture beyond the diffraction limit it will have low micro-contrast.
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