Waming 812 filter Warming 812 filter improves skin tones and is ideal for portraits taken on a cloudy day or outdoors, in shade on a sunny day.Size:25mm,27mm,28mm,30mm,30.5mm,34mm,37mm,40.5mm,43mm,46mm,49mm,52mm,55mm,58mm,62mm,67mm,72mm,74mm,77mm,82mm,86mm,95mm,105mm,112mm,127mmCoated: Un-coated. Warming 812 filter 49mm,52mm,55mm,58mm,62mm,67mm,72mm,77mm,82mm,86mm