Astro Essentials CLS Filter 1.25" v2

Astro Essentials CLS Filter 1.25" v2 – Light Pollution Filter

Brief Overview

The Astro Essentials CLS Filter 1.25" v2 is expertly designed for astronomy enthusiasts seeking to enhance the visibility of deep-sky objects. This City Light Suppression (CLS) light pollution filter is ideal for both amateur and professional astrophotographers, helping to reduce unwanted light from artificial sources and improve contrast and detail in your celestial observations.

Key Features

• High Transmission: Provides high transmission of main nebula emission lines, including H-alpha (656nm), OIII (496nm and 500nm), SII (672nm), and H-beta (486nm).
• Compatibility: Suitable for use with colour CCD and CMOS cameras as well as modified DSLRs.
• Versatility: Effective on most emission nebulae, planetary nebulae, and supernova remnants.
• Enhanced Contrast: Noticeable improvement in contrast and visibility of fainter outer details.
• Mount Sizes: Available in 1.25" (Also available in 2")
• Protective Case: Supplied in a durable protective plastic case.

Detailed Description

The Astro Essentials CLS Filter 1.25" v2 is meticulously engineered to combat the adverse effects of light pollution, a common obstacle for urban astronomers. By selectively reducing the transmission of specific wavelengths from artificial lighting sources such as mercury vapour lamps and high & low-pressure sodium vapour lights, this filter helps to mitigate the impact of skyglow and neutral oxygen emissions in the atmosphere.

The filter excels in transmitting the primary nebula emission lines, including OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha (656nm), and SII (672nm). This optimises the visibility of deep-sky objects, making it an invaluable tool for astrophotography. Whether you're capturing the intricate details of emission nebulae, the distinct forms of planetary nebulae, or the remnants of supernovae, this filter enhances the contrast and detail in your images.

Importantly, this filter is designed for astrophotography and should not be used for observing or photographing the Sun, as it could cause serious and permanent eye damage.

Benefits

• Ease of Use: Simple to attach to your telescope setup, allowing you to quickly start improving your observations.
• Durability: Built to last, with high-quality materials safeguarding it against wear and tear.
• Enhanced Observations: Significantly boosts the contrast and visibility of celestial objects hidden by light pollution.

Specifications

• Transmission:
  • H-alpha: 656nm
  • OIII: 496nm and 500nm
  • SII: 672nm
  • H-beta: 486nm
• Compatibility:
  • Colour CCD and CMOS cameras
  • Modified DSLRs
• Size:
  • 1.25"
• Included Accessories:
  • Protective plastic case

What's in the Box

• Astro Essentials CLS Filter 1.25" v2
• Protective plastic case

Transform your astronomical observations with the Astro Essentials CLS Filter 1.25" v2. Enhance the contrast, detail, and visibility of deep-sky objects and make your astrophotography sessions more rewarding.