Svbony CLS 1.25" Light Pollution Ultra High Contrast is a professional astrophotographic filter dedicated to cutting out the main lines that are part of urban light pollution.

This filter was made by depositing it on a glass substrate using the ion-assisted deposition method, thanks to which it is characterized not only by high thermal stability and no risk of moving the working window, but also is resistant to accidental scratches. This filter is characterized by high permeability for the Hα (656 nm), Hβ (486 nm), OIII (496 nm; 500 nm), SII (672 nm) bands, while maintaining the ability to effectively cut out spectral lines emitted by urban lighting, thus significantly improving the contrast in the images obtained.

The filter can be used with color astronomy cameras as well as digital SLR cameras.

The most important features of the Svbony CLS 1.25" Light Pollution Ultra High Contrast filter

• a broadband filter made by depositing on a substrate by ion-assisted deposition
• high transmission for main spectral lines emitted by nebular objects
• efficient cut-out of light pollution

Technical parameters

• filter type: broadband
• Filter diameter: 1.25"
• filter thickness: 1.85 mm
• passbands: Hα (656 nm), Hβ (486 nm), OIII (496 nm; 500 nm), SII (672 nm)
• maximum transmission in the permeability window: 90%
• blocked bands: lines of mercury and sodium lamps (589 nm; 435 nm; 578 nm)
• permeability for blocked bands: 0.1%
• thread: M28.5x0.6

Set elements

• Svbony CLS 1.25" Light Pollution Ultra High Contrast filter

Guarantee

12 months