Description
ZWO ZWO-DB1.25 Overview
The 1.25″ ZWO Duo-Band Filter passes light in the hydrogen-alpha (656.3nm) and O-III (500.7nm) wavelengths. It improves contrast and seeing for deep space objects such as emission nebulae, and can be used to filter out moonlight or urban light pollution. With a one-shot color astronomy camera, it allows use of narrowband techniques that normally require a monochrome camera, filter wheel, and narrowband filters. The Schott-substrate glass is 1.85mm thick, optical-coated on both sides, and mounted in machined metal with engraved lettering.
Items Included
- ZWO Duo-Band Filter (1.25″)
- Limited 2-Year Manufacturer Warranty
Additional Resources
No additional resources available
ZWO ZWO-DB1.25 Specs
Size | 1.25″ / 31.75 mm |
Thickness | 1.85 mm |
Bandwidth | Ha: 15 nm O III: 35 nm |
Light Transmission | Ha: >80% at 656.3 nm O III: >90% at 495.9 nm and 500.7 nm |
Packaging Info
Package Weight | 0.06 lb |
Box Dimensions (LxWxH) | 3.6 x 3.3 x 0.9″ |
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