- 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 Clear Filters
Chroma Clear Filters are used worldwide for astrophotography and scientific research. Clear filters are ideally paired with Photometric filters for framing targets. Clear filters are also used to keep CCD/CMOS sensors clean without compositing sensitivity.
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