Filters of the Highest Quality
Our filters are crafted from durable quartz glass with a low reflective surface, making them resistant to extreme temperatures and providing a refractive index of 1.456.
Different Types, Many Possibilities
We offer a 4-part frame made from quartz glass, which allows for smoother filter adjustment than an aluminum frame.
Compare our filters to other materials:
| QuartzLine | B270 | Plastic | |
| Refractive index | 1.456 | 1.523 | 1.58 |
| Surface reflectance | 0.034 | 0.042 | 0.056 |
| Stress-relief temperature | 1120°C | 510°C | 463°C |
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