Filters measuring 1.5mm x 67-68mm will fit between the finger frame
retaining claws - filters measuring 1.5mm x 67mm x 72mm will fit
providing the 67mm distance is between the claws. Pro 4, Cokin A,
Cromatek without the frames, etc. will all fit the Pro 4 hood.
The Pro 4 hood will operate on all lenses used for portrait, weddings,
glamour etc, vignetting only occurs on lenses of a wider angle than 38mm
on 35mm and 60mm on medium format.