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The set includes a Luminance filter (UV/IR cut, 98% transmission across the entire visible spectrum 420-685nm) and the three RGB filters (Red 595-690nm, Green 490-580nm, Blue 400-510nm). The balanced design allows the same exposure time to be used for every sub-frame — essential for automated imaging sequences — while reducing stray light and reflections to a level never achieved before.
Each filter is coated with Reflex-Blocker™ treatment, which eliminates unwanted reflections even in the presence of auxiliary optics, and with Life-Coat™ technology: a hardened coating that does not flake, does not degrade and lasts the filter's entire lifetime even under the most extreme conditions. The edges are blackened all around, with a visual indicator on the front side for correct orientation during mounting. Each filter is individually polished and coated, with no exposed coating edges.
Available in 7 formats: 1¼" (31.8mm), 2" (50.8mm), 31mm, 36mm, 50.4mm, 50×50mm and 65×65mm, to fit any CMOS camera or full-frame sensor.
| Parameter | Value |
|---|---|
| Filters included | Luminance (UV/IR cut), Red, Green, Blue |
| Passbands | L 420-685nm / R 595-690nm / G 490-580nm / B 400-510nm |
| Luminance transmission | 98% |
| Recommended optical systems | f/15 to f/1.8 |
| Filter thickness | 2 mm |
| Coating | Reflex-Blocker™, Life-Coat™ |
| Brand | Baader Planetarium |
Ideal for astrophotographers using mono CMOS cameras who want to produce natural colour images of galaxies, star clusters and nebulae, with maximum colour accuracy and no compromises between the different imaging channels.
