The Baader Planetarium UV-IR Cut Filter (50.8x3 Round Unmounted) is a must for all digital imaging with Digital Cameras, CCD Cameras and modified webcams. Also useful for protecting valuable H-Alpha filters from heat stress and damaging IR (Daystar, etc.).Due to its extremely high optical quality, this filter may be stacked and used far in front of the focal plane (necessary for imaging uses). Like the Baader Planetarium Contrast-Booster, the UV-IR-Cut filter uses the very latest coating technology, to deliver the finest filtration quality.
- Filter Durability: Filter durability has always been a hallmark of Baader Planetarium. The multi-layer dielectric coatings are plasma-assisted and Ionbeam-hardened using the latest technology (the coatings are harder than the glass substrate itself.)
- Stackability: Unlike other filters, Baader Planetarium filters are truly designed to be stacked and combined. This is possible due to the high optical quality and highly efficient anti-reflection multicoatings"
- True Optical Quality: Baader glass substrates are of true optical quality. Most other filters are merely made from raw flame-polished, "optically flat," or sometimes a top quality commercially polished filter glass (fine for camera filters)