The Explore Scientific UHC 1.25" nebula filter is an essential tool for enhancing your astronomical observations. This filter blocks most artificial light, thus allowing you to reveal nebulae that you would not be able to see otherwise under a polluted sky. By only allowing the emission lines of hydrogen and oxygen to pass through, this filter optimizes the visibility of deep-sky objects, such as the Owl Nebula or the Cirrus Nebula.

Features:

• Diameter: 1.25’’
• Blocks almost all artificial light
• Allows the emission lines of hydrogen (486 nm, 656 nm) and oxygen (496 nm, 501 nm) to pass through

Benefits:

• Significantly increases contrast for better observation of nebulae
• Allows for the detection of celestial objects that are difficult to see without the filter
• Improves the clarity of observations under a slightly illuminated sky

Compatibility:

• Compatible with 1.25’’ eyepiece holders

This Explore Scientific UHC filter is ideal for amateur astronomers looking to enhance their experience of observing deep-sky celestial objects.