Hey Jyotix and Shabs
well this is a black cardboard or black cloth mostly used during filming and still photography aswell its basically used to block off/ absorb excessive/unnecessary light to just get the right amount of light mainly in portraiture to get the right skin tone and surrounding color and the image does not looks over or underexposed. Hmm well a photography student hope that would help 😊
wow...i love photography...my course used to have it...but the year i took my course..they removed photography... must be interesting..