The first step toward taking tighter control with a broader range of lighting situations is to use a handheld meter. Enter the new Sekonic LiteMaster Pro L-478DR (PocketWizard version). Out of the box, it measures incident light. This exposure meter will also prove valuable when working with studio (or any manual) flash or a mix of ambient light and flash.
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The New Sekonic L-478DR vs My Old Sekonic L-558R.
Compare the new with the old. My trusty, but huge, L-558R offers one distinct benefit - a built-in one-degree spot meter, whereas the new L-478DR is ultra-compact with a touch-control user interface, with added functionality (read the review for more details).