Chroma Technology - H-Alpha 3nm Highspeed f/3 Narrowband Filter - 2" Mounted
***This is the Highspeed version of Chroma Technology Narrowband Filters. They are optimized to work with high-speed imaging systems like the Hyperstar and RASA by shifting the passband and center wavelength into the red. These versions are recommended for f/3 systems. Anything faster, the standard 5nm Narrowband filters should be used.
The Chroma H-alpha 3nm Highspeed Narrowband filter is a geared mainly for astrophotography of deep sky emission sources of the H-alpha 650nm spectral line by optimizing the narrow bandpass of 3nm. It is designed for faster focal ratios (between f/2.8-f/3.6) to account for bandshift. By having a bandpass this narrow (as opposed to a 5nm or 8nm version), it boosts contrast of the H-alpha signal while removing far more light from beyond the specific H-alpha wavelength.
Chroma Technology H-Alpha 3nm Highspeed f/3 Narrowband Filter - 2" Mounted
Features
- Chroma H-alpha 3nm Highspeed Narrowband filter is designed primarily for astrophotography, specifically targeting deep sky emission sources emitting the H-alpha 650nm spectral line.
- Designed to be used with fast focal ratios around f/2.8-f/3.6 to account for bandshift.
- Enhancing the contrast of the H-alpha signal and effectively blocking extraneous light beyond the specific H-alpha wavelength with its extremely narrow 3nm bandpass.
- This configuration is a 2" mounted version.
3nm Centered Bandpass at 650 H-Alpha Line
The Chroma H-alpha 3nm Highspeed Narrowband filter is a geared mainly for astrophotography of deep sky emission sources of the H-alpha 650nm spectral line by optimizing the narrow bandpass of 3nm. It is designed to be used with fast focal ratio optics around f/2.8 to f/3.6 to account for bandshift. By having a bandpass this narrow (as opposed to a 5nm or 8nm version), it boosts contrast of the H-alpha signal while removing far more light from beyond the specific H-alpha wavelength.
| Brand | Chroma Technology |
|---|---|
| Free Shipping | Free Shipping Available |
| Filter Shape | Round |
| Case Included | No |
| Filter Size | 2" mounted |
| In The Box |
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- Chroma Technology H-Alpha 3nm Highspeed f/3 Narrowband Filter - 2" Mounted