Jostein wrote: > The reason is simple. If you measure the diameter on inside of the Cokin P > holder, it's 75mm. I know it is proclaimed to work with some lenses of > larger diameters, but don't count on it. It produce detectable vignetting > with lenses like 645A*300/4, 645A45/2.8, FA*400/5.6 and to some extent on > FA*24/2 and FA20/2.8.
It does not vignette with the FA645 45/2.8 lens. P�l

