Chroma H-Alpha Narrowband Filter
Best narrowband filter for astrophotographers using fast, high-performance telescope optics.
Designed for serious astrophotography, this filter isolates the specific H-Alpha wavelength to reveal deep-sky details with high contrast. Its precise construction ensures it remains parfocal with other filters, streamlining imaging workflows.
$1200.00
at
Astroshop
More H-alpha Filter options
Who it's for
- Astrophotographers seeking maximum contrast in light-polluted skies
- Owners of fast imaging systems like RASA or Hyperstar
- Serious imagers prioritizing long-term durability and optical precision
Who should skip it
- Budget-conscious hobbyists looking for entry-level equipment
- Imagers with limited time for long, multi-hour integration sessions
- Beginners struggling with complex optical train alignment
Performance breakdown
Fast Optics Compatibility
Engineered specifically to maintain contrast on systems as fast as f/2.
Bandwidth Precision
Tight 3nm tolerance effectively isolates H-Alpha emissions from light pollution.
Manufacturing Standards
Rigorous American quality control ensures consistent performance across every unit.
Coating Durability
Advanced custom coatings resist degradation even under demanding environmental conditions.
Signal-to-Noise Ratio
Exceptional light transmission maximizes detail while suppressing unwanted background noise.
Versatility
Standardized sizing options accommodate a wide range of professional imaging setups.
Key Specs
Central wavelength
656 nm
Bandpass
3 nm
Filter thickness
3 mm
Shape
Square
Size
50 mm
Transmitted wavefront
Better than 0.25 waves/inch
Parallelism
Less than 30 arcsec
Country of origin
USA
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Ask Metto anything about the Chroma H-Alpha Narrowband Filter before you decide.
