All Chroma Ha-LRGB Filter Sets contain 5 x individual filters.
- H-alpha 8nm
- Durable sputter coatings
- Filters designed for use with CCD and for f/4 or slower
- Transmitted wavefront better than 0.25 waves/inch
- Parallelism <30 arcsec
- Thickness: 3.0 +/-0.05mm
- Typical spectral performance shown below
(plots are measured data)
Please Contact Bernard at Modern Astronomy for Availability and Lead times.
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