The 55mm C2 Hoya Blue Cooling Color Correction Filter cools the ambient light entering the lens by 200° Kelvin, a -20 mired shift by adding blue to the overall exposure. This filter helps fine-tune the color or look of your scene to match your film's white balance.
The Hoya C2 filter is helpful when:
- You are using tungsten-balanced film, the light source is warmer than the traditional 3200K, and you need a specific amount of color correction to match your film type. Candles and low-watt incandescent bulbs are examples of warm light sources.
- You are shooting at sunrise or sunset with daylight-balanced film (5500K), and the overall scene is too warm. The filter will help cool the scene for a more natural look.
- Hoya Multicoat (HMC) filters are recommended for enhancing the performance of today's multicoated lenses. These popular filters minimize reflection, reduce flare and ghosting, and result in over 97% average light transmission.