Formatt Hitech 80D Color Conversion Filter (5.65 x 5.65")

The Formatt 5.65 x 5.65" 80D Color Conversion Filter is blue. It is used to balance daylight film under artificial, tungsten or standard (household) incandescent lighting.

An 80D filter is the least "powerful" of the 80 series. When using daylight film and you'd like to leave even more yellow than if you were using and 80C filter, the 80D is the way to go. An 80D doesn't bring the temperature up to daylight as much as an 80A, B or C.

This filter allows you to somewhat "balance", i.e. bring back, correct color tone to your images. There is some loss of film speed that may require the use of a tripod but, at least, your photos will demonstrate the proper tonality they so richly deserve.