However the current generation of multigrade filters are not like this. They seem to be a perhaps more sophisticated set of colours. #00 looks orange. There is then the more or less expected progression to magenta through grade 3 1/2. Then a change in colour again at grade 4 onward, which seems (to the eye) to be less "magenta" than grade 3 1/2.
Hi Michael, my Ilford MG filters are also like yours. If you need an explanation of why that is, don't ask me 'coz I know sweet FA why. However, if you need some reassurance that they work 'perfectly' then take it from me, they do.
Norman is an island.Time and tide wait for Norman.