1" ND (Neutral Density) filter in 1.30"-20 threaded, stackable holder. Includes cap with alignment target.

Filter is mounted at 3° to axis. ND value specified at 675 nm. See charts for ND filter transmission curves.

PN : NDL-0.5 (1" ND (Neutral Density) filter in 1.30"-20 threaded, stackable holder)

PN : NDLSET2 (Set of 3 1" ND (Neutral Density) filters (ND 1, 2, 3, 4) in 1.30"-20 threaded, stackable holders)

PN : NDLSET (Set of 6 1" ND (Neutral Density) filters (ND 0.5, 1, 2, 3, 4, 5) in 1.30"-20 threaded, stackable holders)