The CLS 2" nebula filter from Explore Scientific is specially designed to enhance the observation of deep sky objects by eliminating bothersome artificial light, such as that from street lamps and other public lighting sources. This filter blocks the typical wavelengths of mercury and high-pressure lamps, allowing the emissions from celestial objects to pass through and be observed with greater clarity and contrast. Ideal for observing galaxies and nebulae that are otherwise invisible under light-polluted skies, such as galaxy M101, this filter is an indispensable tool for amateur astronomers.

Features:

• Diameter: 2’’
• Eliminates artificial light from public lighting (mercury and high-pressure lamps)
• Optimized for observing dim deep sky objects

Benefits:

• Significantly improves contrast and clarity under polluted skies
• Allows viewing of deep sky objects that are invisible without a filter
• Perfect for amateur astronomers looking to explore galaxies, nebulae, and other dimly lit objects

Compatibility:

• Compatible with all 2’’ eyepieces

The CLS filter from Explore Scientific is essential for all amateur astronomers who wish to optimize their observations under illuminated skies.