Mounted - Open-faced or covered filters (without edge sealant) can be supplied in metal mounting rings, if desired. The rings are constructed from aluminum and are black anodized. Mounting a filter reduces clear aperture and increases the outside diameter as outlined below.
Diameter Information for -N, -B, -W and -VBB Filters
NOTE: Filters are supplied open-faced unless otherwise specified
* 2.0“ Diameter 122-157nm filters are 5mm thick