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Enabling the use of daylight-balanced film under tungsten-lit conditions, this 40.5mm 80B Color Conversion Filter from Formatt-Hitech is a cooling filter used to increase the color temperature from 3400K to 5500K. The blue color of the filter has a filter factor of 3x, requiring an additional 1.6 stops of exposure to achieve normal results.
This filter is constructed from Schott glass to maintain high image clarity and color fidelity, and it features a lightweight yet durable aluminum filter ring with 40.5mm front threads.
Blue color conversion filter increases color temperature and provides a cooling effect.
Converts 3400K to 5500K for using daylight-balanced film under tungsten lighting.
Filter factor of 3 requires approximately 1.6 stops of additional exposure to maintain normal results.
Constructed from Schott glass for optical clarity.
Aluminum filter ring is both lightweight and durable.