Technical data sheet
Optolong H-alpha 3nm 2" Filter
With the Optolong H-alpha 3nm 2" Filter, Optolong offers a tool with attention to detail, precision, and built to last.
H-alpha filter: this narrowband nebula filter allows red light with a wavelength of 656 nanometers to pass through. This is the line where HII regions (hydrogen nebulae) shine.
Main features
Optolong quality for a reliable and satisfying observation experience.
- Type: Filter
- Connection (eyepiece side): 2"
- Frame: 2"
- Bandwidth (nm): 656
- Full Width at Half Maximum (nm): 3
- Connection (telescope side): 2"
Main technical specifications
| Brand | Optolong |
| Model | Optolong H-alpha 3nm 2" Filter |
| Type | H-Alpha Filter |
| Connection (eyepiece side) | 2" |
| Frame | 2" |
| Bandwidth (nm) | 656 |
| Full Width at Half Maximum (nm) | 3 |
| Connection (telescope side) | 2" |
| Type | Filter |
| Manufacturing technology | linear filter |
| Useful for photography | yes |
| Light pollution reduction | yes |
| H-alpha | yes |
| Planetary nebulae | - |
| Supernova remnants | yes |
| Usable for visual observations | yes |
| Emission nebulae | yes |
Take advantage of free shipping throughout Italy on orders over €199.99!
Optolong H-alpha 3nm 2" Filter
With the Optolong H-alpha 3nm 2" Filter, Optolong offers a tool with attention to detail, precision, and built to last.
H-alpha filter: this narrowband nebula filter allows red light with a wavelength of 656 nanometers to pass through. This is the line where HII regions (hydrogen nebulae) shine.
Main features
Optolong quality for a reliable and satisfying observation experience.
- Type: Filter
- Connection (eyepiece side): 2"
- Frame: 2"
- Bandwidth (nm): 656
- Full Width at Half Maximum (nm): 3
- Connection (telescope side): 2"
Main technical specifications
| Brand | Optolong |
| Model | Optolong H-alpha 3nm 2" Filter |
| Type | H-Alpha Filter |
| Connection (eyepiece side) | 2" |
| Frame | 2" |
| Bandwidth (nm) | 656 |
| Full Width at Half Maximum (nm) | 3 |
| Connection (telescope side) | 2" |
| Type | Filter |
| Manufacturing technology | linear filter |
| Useful for photography | yes |
| Light pollution reduction | yes |
| H-alpha | yes |
| Planetary nebulae | - |
| Supernova remnants | yes |
| Usable for visual observations | yes |
| Emission nebulae | yes |
Take advantage of free shipping throughout Italy on orders over €199.99!
SKU:73721
Optolong H-alpha 3nm 2" Filter
- Regular price
- €342,99
- Sale price
- €342,99
- Regular price
-
€479,00
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Paga in 3 rate da €114,33 senza interessi.
Optolong H-alpha 3nm 2" Filter
With the Optolong H-alpha 3nm 2" Filter, Optolong offers a tool with attention to detail, precision, and built to last.
H-alpha filter: this narrowband nebula filter allows red light with a wavelength of 656 nanometers to pass through. This is the line where HII regions (hydrogen nebulae) shine.
Main features
Optolong quality for a reliable and satisfying observation experience.
- Type: Filter
- Connection (eyepiece side): 2"
- Frame: 2"
- Bandwidth (nm): 656
- Full Width at Half Maximum (nm): 3
- Connection (telescope side): 2"
Main technical specifications
| Brand | Optolong |
| Model | Optolong H-alpha 3nm 2" Filter |
| Type | H-Alpha Filter |
| Connection (eyepiece side) | 2" |
| Frame | 2" |
| Bandwidth (nm) | 656 |
| Full Width at Half Maximum (nm) | 3 |
| Connection (telescope side) | 2" |
| Type | Filter |
| Manufacturing technology | linear filter |
| Useful for photography | yes |
| Light pollution reduction | yes |
| H-alpha | yes |
| Planetary nebulae | - |
| Supernova remnants | yes |
| Usable for visual observations | yes |
| Emission nebulae | yes |
Take advantage of free shipping throughout Italy on orders over €199.99!
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Terms and conditions
Terms and conditions
Paga in 3 rate da €114,33 senza interessi.