Hi everyone, I’m shooting a test roll at the moment (my first) on a Nikon R10 but I can’t work out whether inserting the filter key turns the internal filter on or off? My understanding from the manual is that inserting the key turns the filter off - but I’m not sure if I’m interpreting it correctly. It’s confusing as it references old film stock (Kodachrome Type A) which I think was tungsten balanced film, and then talks about artificial light which I’m guessing from the time would mean Tungsten lighting. I thought someone on here would probably know from their own experience shooting with the camera. I've read too that the R10 can work it out itself based off the film cartridge, but I've been inserting the key for different shots so am wondering too if this will have any effect to my shots so far? Hopefully me inserting the key has had no effect. Thanks Dave