Lightroom Tutorial: Underwater Black & White Conversion by Go Ask Erin

There are tons of ways to get Black and White images, but to make the picture great, it must have at least some pure black and pure white. Using only Lightroom, I'm able to completely drop out the background while keeping the subject properly exposed. This technique works best with a blue water background and a subject lit with at least a teensy bit of strobe. It's an amazing transformation.