camera optical glass filter ND1000

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Product Overview

Description


FOWO

1.Reduce light,lower the shutter speed,extended exposure timeusing large aperture
2.T6061 aerospace aluminum alloy,corrosion resistance,high toughness,excellent oxidation
3.Exinction of thread and other accessories
4.Laer etching process,not easy fade,durable

 

PropertySpecification
MaterialB270 optical glass
Coatingwaterproof, oil-proof, scratch-resistant
Size37mm to 86mm Neutral Density Filter
ShapeRound nd filter
Thickness1.6+/-0.1mm
Frame thickness3.1mm
Edge Finish   Ground and beveled
Surface Quality   60-40 scratch-dig
Surface Flatnessλ/4 @ 633 nm
Parallelism    ≤3 arc min (≤0.9 mrad)
Transmistance  >85%
Clear Aperture  >90% of central diameter

 

Neutral Gray Filter ND1000.jpgND1000 .png

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0.0152 s.