Solid Calibration Standards

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666-F1

Holmium Oxide Glass Filter for testing wavelength accuracy.

Filter for 0.25 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 0.3 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 1.5 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 2.0 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 0.7 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 0.5 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 2.5 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 3.0 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 0.04 Abs

Neutral Density Glass Filter for testing photometric accuracy.

Filter for 1.0 Ab

Neutral Density Glass Filter for testing photometric accuracy.