Hoya 62mm 80A Tungsten to Daylight Conversion Glass Filter

These are color conversion filters for the use of daylight type color films with artificial light source. 80A increases the color temperature from 3200K to 5500K for the use with 3200K lamps. 80B increases the color temperature from 3400K to 5500K for the use of photoflood lamps. 80C increases the color temperature from 3800K to 5500K for the use of clear flash bulbs.