Top Pick
Top Pick
Who it's for
- High Transmission and Contrast
- Excellent Light Pollution Suppression
- Robust Optical Construction
Who should skip it
- Premium Price Point
- Requires Extended Exposure Times
- Unmounted Format Requires Accessories
Key Specs
Filter Type
H Alpha
Shape
Round
Size
31mm
Bandwidth
8nm
Transmitted Wavefront
Better than 0.25 waves/inch
Parallelism
Less than 30 arcsec
Filter Diameter
31mm
Still have a question?
Ask Metto anything about the Chroma H-Alpha Narrowband Filters before you decide.
