Melles Griot Neutral Density Filter 0.1%

Description

These BK7 substrate filters have a nominal transmittance value of 0.1 percent as measured at 550nm.

Density value is 3.0 (plus/minus 5%)
Surface flatness is better than 2 lambda over the diameter of the filter
Clear working aperture is 23mm
Diameter is 25mm (plus/minus 0.2mm)
Thickness is 2mm (plus/minus 0.2mm)
Parallelism is better than 3 arc minutes
Melles Griot catalog number is 03 FNG 069.

Filters are in like-new condition.

Photo set 1189.

Feel free to call us at 781-871-8868 prior to purchase with any questions.

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***MPN 03 FNG 069
***OEM Melles Griot
***SKU*** 18353