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ZWO 2″ Duo-Band Filter

$173.26 $86.63

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Product Description

The ZWO 2″ Duo-Band Filter is a premium light pollution filter designed for one-shot color (OSC) cameras, cooled CMOS cameras, and modified DSLRs. It simultaneously transmits the Hydrogen-Alpha (656.3nm) and Oxygen III (500.7nm) emission lines while blocking unwanted artificial light, allowing you to capture brighter, higher-contrast nebulae even under light-polluted skies. Built with Schott optical glass and advanced multi-layer coatings, this 2-inch filter is an excellent choice for deep-sky astrophotography.

Technical Specifications

Specification Details
Product Type Duo-Band Light Pollution Filter
Filter Size 2″ (M48 Thread)
Passband 1 H-Alpha (656.3nm)
Passband 2 Oxygen III (500.7nm)
Bandwidth (FWHM) 15nm
Glass Material Schott Optical Glass
Coating Multi-Layer Anti-Reflection Coating
Transmission >80% (Ha), >90% (OIII)
Glass Thickness 1.85mm
Surface Quality 60/40
Compatibility One-Shot Color (OSC) Cameras, Modified DSLRs, CMOS Cameras
Best For Emission Nebulae & Deep-Sky Astrophotography
Brand ZWO

What’s Included in the Box

Filter: ZWO 2″ Duo-Band Filter
Storage: Protective Plastic Filter Case
Documentation: User Guide

Why Buy from Sky Deep Co.?

Sky Deep Co. is Pakistan’s only authorized ZWO dealer and the Official Learning Partner of the Lahore Astronomical Society. We provide 100% genuine ZWO products, expert guidance, nationwide delivery, and dependable after-sales support. Whether you’re starting astrophotography or upgrading your imaging setup, Sky Deep Co. ensures authentic equipment, competitive pricing,

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