- Parfocal for systems f/4.0 or slower
- Transmitted wavefront better than 0.25 waves/inch
- Parallelism: less than 30 arcsec
- Made in America
- Clear Filter
Chroma Luminace Filters
Chroma Luminance Filters are used worldwide for astrophotography and scientific research. Luminance filters are ideally paired with RGB filters for detecting contrast in targets. Luminance filters are also used to keep CCD/CMOS sensors clean without compositing sensitivity.
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