There are a few excellent European masking frames.. the most popular are Ahel (France), R.R.Beard (Photon-Beard/Calument UK], Dunco (Germany) and Kaiser (Germany). Among the 4-bladed easels the Ahel (Marge- not to be confused with the cheezy Marge-3), Beard and the Kaiser are very good but quite expensive.
Originally Posted by photomc
I tend to advocate multiple 2-blade easels for different formats and my favorite 4-blade is the old Leitz/Leica from the Focomat era. Among the new, in production, 2-blade masking frames I tend to find the Kaiser TopMask in the smaller sizes and the R.R.Bead ProMask to be the best in the large sizes where the "limitations" of 1/4" quantums for top and left margins don't bother...