Well this guy is extremely popular for covering weddings of most celebrities in Chennai. And he deserves this too. He has been my benchmark for a while now. I recently came across this photo taken by him: Instagram post by Ashok Arsh • Nov 4, 2017 at 3:45pm UTC And amazed!! There are only two possibilities I could think of: 1. Using a blue gelled flash to light background (BG): Still, how can he eliminate even its bounce to give the couple a blue shade The couple don't get any rim light either There are some non-blue portions as well in the BG 2. Dropping the WB to a cooler tone and lighting the subject with an opposite colored gel flash Wouldn't that light have affected even a small portion of BG? (Or... has it??) 3. At any case, how did the BG become so saturated and soft edged - Is it only a matter or smaller aperture no. or any digital blurring? Request your comments to my assumptions / questions / interpretations. Thanks. P.s. - Most gel photography tutorials I find in YT are indoor. If outdoor, it is only to correct the skin tone of couple while WB is adjusted to a cooler or warmer temperature. If someone finds a video to give an effect like the Insta post link I have shared, kindly share here.