Chroma Technology Ha3LRGB Filter Set
Starting Price: $1,075.00
Price as Configured: $1,075.00
Price as Configured: $1,075.00
Brand: Chroma Technology / SKU: CT-27109
The Chroma HA3LRGB set delivers both narrowband and broadband capability in a single, parfocal package — ideal for astrophotographers who image emission nebulae and want the flexibility to capture galaxies, clusters, and planets in full color. Chroma's 3nm H-alpha filter provides maximum contrast for hydrogen-rich targets, even from light-polluted skies. Deep Space Products carries the full range of Chroma filter sizes to match your camera and filter wheel. Contact us to discuss which configuration fits your imaging train.
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| H-alpha Center Wavelength | 656.3nm |
| H-alpha Bandwidth (FWHM) | 3nm |
| H-alpha Peak Transmission | >95% |
| Substrate Thickness | 3.0mm single substrate |
| Substrate Type | Single substrate optical glass (no lamination) |
| Cell Height (mounted versions) | 7mm |
| Thread Specification (2" mounted) | M48×0.75 |
| Available Sizes | 1.25" mounted, 2" mounted, 31mm, 36mm, 50mm round, 50×50mm square |
| Minimum Focal Ratio | f/4 standard (custom f/2 available) |
| Coating Type | Hard sputtered front + anti-reflection rear |
| Parfocal | Yes (within set) |
| Temperature/Humidity Stability | Spectrally stable through environmental extremes |
| Manufacturer Certifications | ISO 9001, B Corporation |
| Warranty | Lifetime warranty against defects; satisfaction guarantee |
