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Location: Main > Optical Filters > Neutral Density Filters > NDF-AK-S20
Name: 50x50mm Absorptive Neutral Density Filter Kit
P/N: NDF-AK-S20
Keywords:50.0x50.0mm,OD from 0.04 to 5.0,14pcs/kit
Unit Price: S$650.00/set
Available: In stock
Request: Add to Request List
Introduction:
50.0x50.0mm Absorptive ND Filters, T from 0.001% to 92%, Total 14 types

In photography and optics, a neutral density filter or ND filter is a "grey" filter. An ideal neutral density filter reduces light of all wavelengths or colors equally. The purpose of standard photographic neutral density filters is to allow the photographer greater flexibility to change the aperture or exposure time, allowing for more control, particularly in extreme circumstances.
More large pictures

 Substrate Material:

 Absorptive optical glassneutral density type
 (vision light)

 Outer Dimension:  50.0x50.0,-0.2, +0.0mm
 Surface Quality:  Double side optical polished,60-40 S/D
 Optical Density
 Tolerance:		  < +/-5% @ 546nm
 Accessory:  Unmounted
 Optical Density:
 OD = Log10 (1/T) or T = 10OD

 OD=0.04  T=92%  +/-2%
 OD=0.1  T=79%  +/-2%
 OD=0.2  T=63%  +/-2%
 OD=0.3  T=50%  +/-2%
 OD=0.4  T=40%  +/-2%
 OD=0.5  T=32%  +/-2%
 OD=0.6  T=25%  +/-2%
 OD=0.8  T=16%  +/-2%
 OD=1.0  T=10%  +/-2%
 OD=1.3  T=5%  +/-2%
 OD=2.0  T=1.0%  +/-2%
 OD=3.0  T=0.1%  +/-2%
 OD=4.0  T=0.01%  +/-2%
 OD=5.0  T=0.001%  +/-2%


 
 
 
 
 
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