B+W Bay 60 Warm KR12

This reddish-brown filter allows the use of a tungsten-balanced film in daylight without a strong blue cast. It effectively absorbs the excess of daylight blue that is otherwise superimposed on all the colors. But the KR 12 filter is useful not only as a “savior in cases of need”, or for making good use of an otherwise useless remnant of film, because it can also be used effectively for overcoming extreme contrasts that are greater than a daylight reversal film can handle. A reversal film balanced for tungsten light has a flatter gradation curve, adding a possible high contrast control. Its filter factor is approximately 2.