Askar - ColourMagic C Duo Band Filter Package - 2"
The Askar 2" ColourMagic C Duo Band Filter Package is tailored for color camera imaging. It includes H-Alpha/OIII and SII/OIII filters, effectively isolating narrowband emission lines common in deep sky objects, especially nebulae (both emission and planetary). This enables users without a monochrome sensor to substitute these filters for the typical narrowband ones used in monochrome imagery.
Askar ColourMagic C Duo Band Filter Package - 2"
ColourMagic D Duo Band Features
- The Askar 2" ColourMagic C Duo Band Filter Package is geared for color camera users.
- Includes both an H-Alpha/OIII and SII/OIII filter to isolate narrowband emission lines in deep sky objects, and in particular emission and planetary nebulae.
- Enables users without a monochrome sensor to use in place of traditional narrowband filters used in monochrome imagery.
- Narrowband filters restrict bandpass to specific emission lines, enhancing detail in deep sky objects as well as effectively reducing the impact of light pollution, making cosmic imaging more viable in light-polluted areas.
Ha/OIII and SII/OIII Filter Package
For imagers with a color camera, the Askar 2" ColourMagic C Duo Band Filter Package consists of an H-Alpha/OIII filter and SII/OIII which filters out consistent narrowband emission lines that are often found in most deep sky objects, and in particular emission and planetary nebulae. These filters allows users who do not have or aren't using a monochrome sensor to use in place of the regular narrowband filters that are used for monochrome imagery.
Since the filters are considered narrowband, thus only allowing a bandpass within a specified emission line, it helps generate more detail in deep sky objects as well as to an extent, removing the effects of light pollution making imaging the cosmos more suitable and obtainable in light polluted areas.
The following filter specifications are as follows:
- The full width half maximum (FWHM) of the H-Alpha and SII is approximately 15nm while the OIII is 35nm.
- The filters have a measured light transmission of approximately 90%.
- 2mm thickness.
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