Photographer will set your Tonemapper to Camera mode with settings that won't interfere with Photographer. Disabling the Tonemapper won't work with Photographer because it offsets the default Exposure, but your remark made me think that this would be a much better way to do it instead... I was just stupid and will do that instead.
Light Intensities and Units
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.