Explore Scientific L-Pro Broadband Light Pollution Filter 1.25" — Block Light Pollution for Deep-Sky Views

The Explore Scientific L-Pro 1.25-inch broadband light pollution filter brings deep-sky contrast to smaller focusers and filter wheels. This broadband filter gently blocks the wavelengths of artificial skyglow while passing a wide range of useful starlight, so galaxies, star clusters, and nebulae keep their natural color even from suburban backyards.

Made by Optolong, this multi-bandpass filter suppresses the common yellow-orange glow of streetlights without the heavy color cast of aggressive narrowband filters — ideal for balanced, general deep-sky imaging.

Who it's for

Perfect for astrophotographers using 1.25-inch filters who shoot a mix of galaxies, clusters, and nebulae from light-polluted skies. New to imaging? See our astronomy 101 stargazing basics guide.

Key features

• Broadband multi-bandpass design that blocks light pollution while passing useful starlight.
• Natural color balance across galaxies, clusters, and nebulae.
• Compact 1.25-inch format for smaller filter wheels, cameras, and eyepiece trains.
• One-shot-color compatible with DSLRs and color astro cameras.
• Versatile deep-sky performance beyond emission nebulae alone.

Frequently asked questions

How is L-Pro different from the narrowband filters?
L-Pro is broadband and preserves natural color across many deep-sky targets, while L-eNhance and L-eXtreme are narrowband filters aimed specifically at emission nebulae.

Will it fit my 2-inch wheel?
This is the 1.25-inch version, sized for 1.25-inch filter wheels, cameras, and eyepiece adapters. Choose the 2-inch model for larger wheels.

Does it work with a DSLR?
Yes, it's suited to one-shot-color cameras including DSLRs and color astro cameras.