For working with tungsten-balanced film under daylight conditions, this 82mm 85C HMC Color Conversion Filter from Hoya is a warming filter used to decrease the color temperature from 5500K to 3800K. The amber color of the filter has a filter factor of 1.3x, requiring an additional 0.3 stops of exposure to achieve normal results.

The filter is constructed from optical glass and has a six-layer HMC coating to reduce surface reflections and glare in order to retain high image accuracy, clarity, and contrast. It is mounted within a durable, lightweight aluminum ring, which has a hard-anodized finish to guard against wear.

• Amber color conversion filter decreases color temperature and provides a warming effect


• Converts 5500K to 3800K for using tungsten-balanced film in daylight conditions


• Filter factor of 1.3 requires approximately 0.3 stops of additional exposure to maintain normal results


• The Hoya Multi-Coating (HMC) uses a six layer, three-per-side, design that helps to noticeably reduce surface reflections and glare for improved contrast and image fidelity


• Aluminum filter ring is both lightweight and durable and features a hard-anodized finish to guard against scratching and wear