brevis with cf1 screen cant be used by hpx170?

[truehuss]

I have a chance to buy a cheap brevis but it has a cf1 screen and I was reading there site that said the cf1le is the one for anything above 58mm threads so does that mean I'll have to buy a new cinefuse screen to use it or would I still be able to use it , just not as ....(insert what i'm trying to say here..) ???

 

[astigmatic]

you'll still be able to use it, but you may get vignetting on some of your lenses.