Optolong CLS-CCD Filter

Optolong CLS-CCD Filter - Unveil the Cosmos in Crystal Clear Detail

Embark on a celestial journey with the Optolong CLS-CCD Filter, a cutting-edge 2" light pollution filter meticulously designed for astronomy imaging and astrophotography. Let the wonders of the universe come to life as this filter enhances the visibility of deep sky objects, providing astrophotographers with unprecedented clarity and contrast.

1. Optolong CLS-CCD Introduction: Enhancing the Cosmic Canvas

The CLS-CCD broadband filter is engineered to mitigate the impact of light pollution, selectively reducing wavelengths produced by artificial light sources. This includes mercury vapor lamps, high & low-pressure sodium vapor lights, and unwanted natural light caused by neutral oxygen emission (skyglow). With exceptional transparency in main nebula emission lines such as OIII, H-beta, NII, H-alpha, and SII, this filter is a powerful tool for capturing the intricate details of celestial objects in light-polluted areas.

Main Use:

• Different from CLS with infrared wavelength 700-1100nm cut-off.
• Tailored for color CCD cameras and modified DSLRs for astrophotography.
• Ideal for emission nebulae, planetary nebulae, and supernova remnants.
• Noticeable boost in contrast and visibility of fainter outer details.

Important Note: Light pollution filters enhance contrast between nebula and the night sky, rather than brightening the nebula itself. They don't eliminate the effects of light pollution or increase the object's brightness. Also, these filters are not designed for sun observation, and looking at the sun with Optolong filters can result in blindness.

2. Optolong CLS-CCD Spectrum and Characteristic: Precision Unleashed

• Substrate: Optical glass
• Thickness: 1.85mm
• Transmission Average (Tave): T>90%
• Blocking Range: 300-1100nm
• Blocking Depth: Light pollution line blocking >99%
• Transmitted Wavefront RMS: λ/4
• Diameter: 2 Inch
• Parallelism: 30s

3. Coating Technology: Elevating Durability and Performance

• Multi-layers anti-reflection coating
• Non-cementing optical substrate coating
• Precision coating based on Ion-assisted deposition technology for durability and scratch resistance.
• Stable CWL (central wavelength) with no deviation affected by temperature change.
• Planetary rotation system ensures precision and homogeneity of coatings, guaranteeing high transmission and optimal optical density.

Unleash the full potential of your astrophotography with the Optolong CLS-CCD Filter – where precision meets the cosmos. Capture the universe with unrivaled clarity and detail, and let every image tell a cosmic tale.

Optolong CLS-CCD Filter - Illuminate the Night Sky like Never Before.