Don Libby
Well-known member
My original intent was to use a step up ring to fit the 67mm filters I already use on the 2-lenses (color,590,720T and 830nm) until I found 2-55mm filters sitting in a junk drawer (720 & 830nm) so now I'm thinking of using a 52-55 step ring which might actually work better on this lens. The good news is that I already have the step rings so all I need to do is wait for the lens to get here and I do the cutting before I have to make up my mind.