Sanming Foreign Trade Development Co., Ltd. Fujian [China]

Detailed Product Description

Absorption glass Neutral density filter (ND filter)

Material: Optical Neutral Density Glass
Flatness: 2l per 25 mm
Surface Quality: 80/50

Parallelism: 3'

Dimension: circle (dia.25.4mm typical) or square

Dimension Tolerance: +/-0.2mm

Optical Density Tolerance : ±5%