Users of this forum are fond of writing about their heroic struggles against adverse lighting.
However, here's a case where the light was imperfect and easily overcome using camera and software automation.
The event was indoors with typical display hall illumination. The task began with a Canon 60D and a non-stabilized Sigma 70-200mm f/2.8 lens, used with available light and no flash. The major camera settings were in automatic, with Auto ISO and auto white balance used, along with Program AE autoexposure. Cleaning up the images began with Adobe Lightroom, where the images were passed through the program's Auto Tone function. The resulting files were then sent to Imagenomic Noiseware, where they were processed through the program's default settings. The camera and the software did all of the work.