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  • Substrate: UV Fused Silica
  • Spectral Range: 380-1200nm
  • Surface Quality: 60-40 Scratch-Dig
  • Wedge: <3 arcmin
  • Irregularity (per cm2): <λ
  • Optical Density Tolerance: +/-5% (each extreme)

    For Quantity Discounts, OEM and Custom Orders, please contact us directly.

Our continuously variable filters have an ND coating on the front with no coating on the back. The Optical Density (OD) is defined as follows:

D = log10(1/T), or T = 10-D

 
SorryAnerroroccurredwhenyourequestedthispage.Theerrorhasbeenloggedandwewillworktocorrecttheproblem.Weapologizefortheinconvenience.Pleaseemailwebmaster@thorlabs.comifyoureceievedthispagebyaccident.ReturntoThorlabsHomepage
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PART NUMBER PRODUCT TITLE
ThorLabs-Error
>FNL-10C-2		 Linear Variable ND Filter, 10mm x 50mm, OD Range 0-2.0
ThorLabs-Error
>FNL-10C-4
 Linear Variable ND Filter, 10mm x 50mm, OD Range 0-4.0
ThorLabs-Error
>FNL-25C-2		 Linear Variable ND Filter, 25mm x 100mm, OD Range 0-2.0
ThorLabs-Error
>FNL-25C-4		 Linear Variable ND Filter, 25mm x 100mm, OD Range 0-4.0

Thorlabs, Inc Nova Phase :: 43 Sparta Ave :: Newton, NJ :: 07860 :: Phone 973-579-NOVA (6682) :: Fax 973-383-6037