- Parfocal for systems f/4.0 or slower
- Transmitted wavefront better than 0.25 waves/inch
- Parallelism: less than 30 arcsec
- Made in America
- Blue Filter
Chroma Blue Filters
Chroma Blue Filters are used for recording blue wavelengths in monochrome CCD/CMOS Astrophotography and tricolor imaging. Made for precise color separation, optical quality, and signal purity.
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