ZWO
ZWO 2" Duo-Band Filter
ZWO 2" Duo-Band Filter
SKU:
Low stock: 1 left
Couldn't load pickup availability
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, and trusted local service for astronomers across Pakistan.
FAQs
Is the ZWO 2" Duo-Band Filter suitable for color cameras?
Yes. It is specifically designed for one-shot color (OSC) cameras, cooled CMOS cameras, and modified DSLRs for deep-sky imaging.
What does the Duo-Band filter do?
It passes Hydrogen-Alpha (Ha) and Oxygen III (OIII) wavelengths while blocking most light pollution, producing higher-contrast nebula images.
Can I use this filter under city skies?
Yes. The filter is designed to reduce the effects of light pollution, making it ideal for imaging emission nebulae from urban and suburban locations.
Does this filter work with monochrome cameras?
Yes, but it is optimized for OSC cameras. Monochrome users typically achieve better results with separate Ha, OIII, and SII narrowband filters.
Is the ZWO 2" Duo-Band Filter available in Pakistan?
Yes. Sky Deep Co. offers genuine ZWO filters in Pakistan with official warranty and expert after-sales support.
