Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.
Astronomik Filters CCD Canon EOS XL H-Alpha clip-filter (43703)
The Astronomik H-alpha 12nm filter is a narrowband filter specifically designed for CCD astrophotography. It allows H-alpha light from emission nebulae to pass through while blocking nearly all other wavelengths where CCD cameras are sensitive. With a full width at half-maximum (FWHM) of 12nm, this filter is optimized for use with common CCD cameras and fast optics, offering a transmission rate of up to 99%. The "Halo-Free" design, introduced in 2008, ensures superior image quality by eliminating halos around bright stars.
330.55 $ net price (non-EU countries)
Anatolii Livashevskyi
Product Manager /
+48721808900 +48721808900
+48721808900
[email protected]
Description
The Astronomik H-alpha 12nm filter is a narrowband filter specifically designed for CCD astrophotography. It allows H-alpha light from emission nebulae to pass through while blocking nearly all other wavelengths where CCD cameras are sensitive. With a full width at half-maximum (FWHM) of 12nm, this filter is optimized for use with common CCD cameras and fast optics, offering a transmission rate of up to 99%. The "Halo-Free" design, introduced in 2008, ensures superior image quality by eliminating halos around bright stars.
This filter also supports guiding stars for cameras with built-in autoguiders, unlike narrower filters such as the 6nm version. It is effective for aperture ratios ranging from 1:2.8 to 1:15, with minimal chromatic distortions or transmission losses unless used with extremely bright aperture ratios of 1:2 or faster. Additionally, it completely suppresses artificial light pollution from mercury and sodium lamps, making it ideal for capturing high-contrast images of nebulae even in heavily light-polluted areas.
Please note that while the Clip-Filter system is compatible with Canon EF lenses and third-party lenses (Sigma, Tamron, etc.), it cannot be used with Canon EF-S lenses.
Specifications
- Capacity:
- Half-value width (nm): 12
- Connection: EOS Clip
- Coating of optical system: Multiple
- Frame: Clip-Filters
- Appropriate for: Canon EOS
- General:
- Series: H-alpha 12nm
- Type: Filters
- Type of build: Line filter
Area of Application
- Useful for photographs: Yes
- Hydrogen nebulae: Yes
- Anti light-pollution: Yes
- Visually useful: No
Data sheet
Official permits of the Ministry of Development and Technology
Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.