Review on 📷 Kiorafoto 3x3 Easy Carry Professional Camera White Balance Card: Grey Card Film Filter & Color Checker for Temperature Calibration by Drew Springer

let me tell you this is probably the best $10 I've spent on my camera gear. After taking hundreds of pictures in different lighting conditions, the white correction hum in post-processing is gone. Opening times saved. Gray card white balance can be delicate at times when I think about taking a new picture for every change in light. This filter is great. I take a well-exposed shot with a filter and create a custom white balance on the fly. It only takes a few seconds and the correction is carried out precisely. Should have done that many years ago. Some other products are 4 or 5 times more expensive, but why spend so much money? It is great.