Specifications of 1.25" ND3 Filter
- Filter Size : 1.25 inches
- Reduction Factor : 1,000
- Transmission : 0.1>#/li###
- Optical Quality : Multi-layer anti-reflection coating, non-cementing optical substrate coating
- Material : Schott B260 substrate glass, aluminum frame
- Surface Quality : 60/40 according to MIL-O-13830
- Surface Parallelism : 1/4λ, <30 parallelism over both surfaces
- Thread : Standard M28.5x0.6mm
- Shape : Round
- Net Weight : 3g / 0.12oz
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