Cokin Blue (80A) Filter

Blue Conversion filters help correct warm or amber light to neutral "Daylight". The 80A filter is a dark blue filter that corrects 3200K (Incandescent) light to 5500K (Daylight). This is a critical tool for film photographers because film has a fixed light balance, usually daylight, that should be corrected in-camera for the most accurate results.

Filter Dimensions	M (P) - 84mm x 84mm x 1.6mm L (Z) - 100mm x 100mm x 1.6mm XL (X) - 130mm x 130mm x 3mm
Thickness	1.6 mm
Filter Construction	C39 Optical Resin
Filter #	80A/020
Density	0.2
Filter Factor	1.5x (0.6 stop)
Effect	Cools entire image when used under daylight on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected Can be used with daylight film to accurately reproduce color under 3200K light sources
Mired Shift	-131
Color Temperature	3200K to 5500K

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