Chroma Technology - SII 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 SII 3nm Highspeed Narrowband filter is a geared mainly for astrophotography of deep sky emission sources of the SII 670nm 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 SII signal while removing far more light from beyond the specific SII wavelength.
Chroma Technology SII 3nm Highspeed f/3 Narrowband Filter - 2" Mounted
Features
- Chroma SII 3nm Highspeed Narrowband filter is designed primarily for astrophotography, specifically targeting deep sky emission sources emitting the SII 670nm 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 SII signal and effectively blocking extraneous light beyond the specific SII wavelength with its extremely narrow 3nm bandpass.
- This configuration is a 2" mounted version.
3nm Centered Bandpass at 670NM SII Line
The Chroma SII 3nm Highspeed Narrowband filter is a geared mainly for astrophotography of deep sky emission sources of the SII 670nm 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 SII signal while removing far more light from beyond the specific SII 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 SII 3nm Highspeed f/3 Narrowband Filter - 2" Mounted