Kodak Vision 500T dalight correction filter

[David Paul Carr]

The Kodak data sheet specifies the use of an "85" filter for use in daylight (not 85A or 85B). Could somebody please confirm that this is the most appropriate? 

I am aware that the difference between an 85 and an 85B is about 500°K and that this should be well within what can be adjusted when grading a decent scan. This is nerdy curiosity and because the 85 is what I have immediately available for a specific lens diameter.

[Mark Dunn]

85 and 85A are the same, correcting to 3400K (supposedly tungsten-halogen). The 85B is for 3200K (non-halogen). I don't think the 200K difference is significant for digital.

The slightly casual approach to nomenclature is long-standing- my 1980 Kodak guide refers to 85 when it means 85A. This is for colour neg; it would be more important to nail it for tungsten-balanced colour reversal, where it specifies 85B, but that no longer exists.

Edited July 27 by Mark Dunn

[Joerg Polzfusz]

There’s simply no „85A“ in Kodak‘s Wratten system. It’s only „85“ and then „85B“.

But there are some other filter companies who named their filters „85A“ instead of „85“. The reasons are unknown. (Of course, it’s more consistent etc..)

[David Mullen ASC]

85 and 85A are the same filter I think. There used to be Type A film and Type B film, Type A was balanced for 3400K (lighting under tungsten photoflood bulbs) and Type B was balanced for 3200K (regular tungsten movie lamps).