Astronomik CLS Clip Filter
Best light-pollution filter for urban deep-sky astrophotographers using Sony mirrorless cameras.
This clip-in filter is the ultimate shortcut for urban astrophotography, stripping away light pollution to reveal deep-sky details without requiring permanent camera modifications. You sacrifice a bit of light throughput, but you gain the freedom to shoot high-contrast nebulae from your own backyard.
$189.95
Who it's for
- Urban astrophotographers shooting from light-polluted backyards
- Landscape photographers using multiple lenses without filter clutter
- Field photographers frequently changing lenses in dusty environments
Who should skip it
- Precision-focused users requiring perfect infinity focus
- Owners of APS-C Sony or non-Sony camera systems
- Daytime photographers needing natural color accuracy
Performance breakdown
Light Pollution Suppression
Effectively isolates nebular light from the harsh glow of urban environments.
Installation Simplicity
Snaps securely into the camera body without requiring any specialized tools.
Optical Transmission
Maintains exceptional clarity for critical hydrogen and oxygen emission lines.
Build Durability
Anodized aluminum and scratch-resistant glass withstand demanding field conditions with ease.
System Compatibility
Seamlessly integrates with Sony Alpha bodies without disrupting autofocus or lens performance.
Surface Protection
Advanced coatings provide reliable defense against humidity and environmental aging.
Key Specs
Filter Mounting
Clip mounted for Sony Alpha cameras
Filter Type
Light Pollution/City Light Suppression
Material
Optical Glass
Shape
Round
Transmission At Ha
97%
Transmission At Hb and Oiii
95%
Transmission Blocking
ultraviolet
Scratch Resistant
Yes
Anti-Reflective Coating
Yes
Mounting Type
Drop-in
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