Since the histogram on DSLR is not real reflection of RAW data, I have been trying to use UniWB method to recalibrate my Sony A700 settings to get a better histogram.

Based on trials and errors, here’re my current settings: Create Style -> Neutral; Contrast -> 0; Saturation -> 0; Brightness -> +3. My UniWB setting is 3900KG9 based on a fully blown out image. Here’s how to set up UniWB.

The histograms (mainly around right side) look closer on camera and in Lightroom (imported without any preset changes).

When shooting a high dynamic range scene, I first get a reading on the main subject and then check both highlights and lowlights (+/- 2-3 stops without clipping); shoot one and check the histogram and adjust exposure to push the highlight to the right side for maximum utilization of camera’s capabality.

I’m also using the zone system for exposure.

The alternative is just using exposure bracketing of +/- 0.5 to 1 stop.