Schott N-WG320

I needed a 2mm thick longpass filter for my spectrometer setup—this one fit perfectly and the transmission curve is exactly what I expected from the Schott N-WG320.

The 2mm thickness is spot on for my optical setup, and the cut was clean with no chipping along the edges. Arrived well-packaged and the transmission curve matched the spec sheet exactly.

I was worried about getting the exact cut I needed for my optical setup, but this 2mm thick filter fit perfectly. The 400nm cut-on transition is sharp and clean, exactly as specified. Works great for my fluorescence imaging rig.