Schott RG780

Cutting through my near-IR laser test patterns with zero bleed at 780 nm—exactly what I needed for my spectroscopy setup. The optical density is noticeably cleaner than the generic glass I was using before, and the 3 mm thick substrate makes handling and mounting straightforward.

The 3mm thickness feels substantial and well-made, it fits perfectly into my optical setup. Cuts on cleanly at 780nm just as expected, no noticeable stray light leaking through. Exactly what I needed for my fluorescence imaging rig.

Ordered one of these to replace a scratched longpass in my imaging setup and the cut-on is dead clean, exactly what I needed past 780nm. Shipping from the UK was quicker than I expected for a small optics order. Glass arrived spotless, no chips on the edges.