ZWO
ZWO 1.25" Duo-Band Filter
ZWO 1.25" Duo-Band Filter
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Product Description
Capture stunning emission nebulae even under light-polluted skies with the ZWO 1.25" Duo-Band Filter. Designed for one-shot color (OSC) cameras and compatible monochrome setups, this premium filter isolates the Hydrogen-Alpha (656.3nm) and Oxygen III (500.7nm) emission lines while blocking unwanted artificial light. The result is improved contrast, richer nebula detail, and cleaner astrophotography images. Built with premium Schott optical glass and multi-layer anti-reflection coatings, it delivers excellent optical performance and durability for serious deep-sky imaging.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | ZWO |
| Filter Size | 1.25" |
| Passbands | H-Alpha (656.3nm) & O-III (500.7nm) |
| FWHM | 15nm (H-Alpha), 15nm (O-III) |
| Glass Material | Schott Optical Glass |
| Coating | Multi-layer Anti-Reflection Coating |
| Primary Use | Emission Nebula Astrophotography |
| Compatibility | One-Shot Color (OSC) & Compatible Monochrome Cameras |
| Thread Size | Standard 1.25" Filter Thread |
What's Included in the Box
The box includes one ZWO 1.25" Duo-Band Filter, designed for capturing H-Alpha and O-III emission lines with improved contrast during deep-sky astrophotography. It also comes with a protective hard storage case featuring a foam insert to safeguard the filter from dust, scratches, and moisture when not in use. Depending on the latest manufacturer packaging, a quality inspection certificate or product documentation may also be included.
Why Buy from Sky Deep Co?
Sky Deep Co is Pakistan's trusted partner for astronomy equipment, supplying 100% genuine ZWO products backed by manufacturer warranty and expert technical support. As an Official Learning Partner of the Lahore Astronomical Society, we help beginners and experienced astrophotographers choose the right equipment with confidence. From product guidance to reliable after-sales service and fast nationwide delivery, Sky Deep Co is committed to providing an exceptional customer experience for every astronomy enthusiast.
FAQs
1. What is the ZWO 1.25" Duo-Band Filter used for?
It enhances deep-sky astrophotography by transmitting H-Alpha and O-III wavelengths while reducing light pollution.
2. Is this filter suitable for one-shot color cameras?
Yes. It is specifically designed for OSC astronomy cameras and also works with compatible monochrome cameras.
3. Can this filter reduce city light pollution?
Yes. It blocks most artificial light sources, making nebulae stand out with greater contrast.
4. Which celestial objects are best photographed with this filter?
It performs best on emission nebulae such as the Orion Nebula, Rosette Nebula, Veil Nebula, and North America Nebula.
5. Does the filter include a storage case?
Yes. Every ZWO 1.25" Duo-Band Filter comes with a protective storage case for safe handling and storage.
