E-P1 Dynamic range

[bcaslis]

Reducing the brightness is probably the wrong term. The fact is that a number of cameras have a base ISO of 200. ISO 100 is simulated by overexposing the image (since you can't get lower than the base ISO) and then digitally lowering the output. This has the effect of preserving shadows but reducing the highlight range overall reducing the dynamic range.

 

[pellicle]

This has the effect of preserving shadows but reducing the highlight range overall reducing the dynamic range.

sounds desirable to me ... rather like non-linear encoding strategys. Unless of course that one exceeds the signal to noise capacity of the shadow areas and essentially only gets dirtier shadows.