qn -
.. the vignetting that 503CW has overcome is only appearant on the viewfinder, does it also appear on the film? I have a 150mm lens, thinking of gettingg a 501cm.
.. when i use the 72mm hoya CPL with a B60-67 adaptor plus a 67-72 step up ring on the 50mm CF lens (the version that has 2 focusing ring, 60mm dia. ), all 4 corners go black at higher f, but not appearant on the viewfinder. Anybody has experience with hoya CPL, if i use B60-72 would it be ok? or i need a bigger hoya CPL.. or the original hassy CPL???
Thanks!