- Bandwidth: 7nm
- Wavelength: 656nm
- Type: Hydrogen Alpha
- Size: 31mm
ZWO 31mm HA Filter - 7nmThe H-Alpha Narrowband filter transmits only H-Alpha wavelength light, which is found in most nebulae, star clusters, galaxies, and stars. This makes these filters ideal for complex false color imaging of such regions. H-Alpha filters such as this one are excellent for boosting contrast and are most definitely a must have for imaging in areas with high levels of light pollution. This particular H-Alpha filter has a bandwidth of 7nm. Unmounted, this filter will fit into filter wheels made to accept 31mm filters.
OPT Product Number: ZWO-HA7-31MM
WavelengthPasses light at 656nm
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