HOYA 52mm C8 Blue Cooling Color Conversion Filter

The C8 color conversion filter allows you to match the white balance of 3800K tungsten balanced (warm) ambient light sources entering the lens to match Daylight balanced 5500K films. C8 filters cool the light source by 1700K (-80 mired shift) by adding a dark blue to the overall exposure. The Hoya C8 filter is helpful when: You are using daylight-balanced film and the light source is warm and you want to to record accurate colors on the film. Examples of warm light sources are traditional light bulbs, and some halogen bulbs. You are shooting a daylight balanced film and you want to create a day-for-night look. The extra blue cast will help give daytime that night feel especially on overcast days. HOYA Multi-Coat (HMC) filters are recommended for enhancing the performance of todays multicoated lenses. These popular filters minimize reflection, reduce flare and ghosting, and result in over 97% average light transmission.