ZWO 31mm H-alpha Filter - 7nm
The 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
- Increase the contrast between the imaged nebula and the night sky without brightening the nebula.
- Bandwidth: 7nm.
- Wavelength: 656nm.
- Type: Hydrogen Alpha.
- Size: 31mm.
Original: $149.00
-65%$149.00
$52.15
Description
The 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
- Increase the contrast between the imaged nebula and the night sky without brightening the nebula.
- Bandwidth: 7nm.
- Wavelength: 656nm.
- Type: Hydrogen Alpha.
- Size: 31mm.












