Newport 900 3-axis spatial filter, in excellent condition. Minor oxidation on the black-anodized thimble knobs.
Complete with micrometers and a matching set of a Newport 60x 0.85 NA objective and 900PH-5 pinhole, recommended for 3.5mm maximum input beam diameter.
Other objective and pinhole combinations may be available, please inquire.
For additional information and resources, refer to the manufacturer's website.