ISO 100, OMD-EM1II and firmware 3.0?

Started 2 months ago | Questions thread
Richard Turton Regular Member • Posts: 238
Measured results
8

Measured in auto exposure mode with RawDigger.

Headroom is the difference between the camera's 18% grey level and maximum output (4095-255=3840 or 11.9 EV).  For the normal ISO range the average headroom is 4.1 stops.  For the low range it drops to around 2.4 stops.  Total noise is higher in the low ISO range, but the signal level increases even more so the Signal/Noise Ratio continues to improve.

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