ZWO 36mm SII 7nm Unmounted Narrowband Filter

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Black Friday & Holiday Sale 2024 - Huge savings on most ZWO products.

Sale Ends Midnight, 3rd January 2025 subject to availability.

About this product

New & Improved with higher light transmission and less reflection (reduced halos around bright stars). 

The ZWO narrowband S-II filter passes light at 672nm wavelength with a bandpass of 7nm.

Use with H-alpha and OIII narrowband filters (SHO Set) for astrophotography. 

Also suitable for visual observation of most emission nebulae, planetary nebulae and supernova remnants. 

Transmission Curve

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