If your lens is not 77mm or 82mm and you want to use the NiSi Night Filter then don't despair there is a solution !!
Buy the 82mm NiSi Night Filter and add a step ring to suit your lens, they are available from 49mm to 72mm
CLICK link below to view Step Rings.
Buy the 82mm NiSi Night Filter and add a step ring to suit your lens, they are available from 49mm to 72mm
CLICK link below to view Step Rings.