Duo-Band Filter 50.8 mm ZWO - for astrophotography

Name: Duo-Band Filter 50.8 mm ZWO - for astrophotography
Brand: ZWO
SKU: zwo-zwdb2
Price: 218.0 EUR
Availability: InStock

Duo-Band Filter 50.8 mm ZWO - for astrophotography

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€218,00 EUR

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In order to limit light pollution, a real scourge in astrophotography, ZWO offers the Duo-Band filter, a "2 in 1" solution combining the filters around the H-Alpha and O-III lines. Thanks to multilayer coatings with high reflectivity, the transmission in these characteristic emission peaks of nebulae reaches at least 90%, significantly improving the quality of your astronomical images.

Features
Benefits
Compatibility
Included Items

Bandwidth: H-Alpha (15 nm) / O-III (35 nm)
Transmission: 90% in the H-Alpha (656.3 nm) and O-III (495.9 and 500.7 nm) lines
Construction: CNC machined aluminum cell, moisture, dirt, and scratch resistant
Glass: Schott, thickness of 1.85 mm, precise optical polishing
Availability: 31.75 mm and 50.8 mm barrels
Compatibility: CMOS and CCD color cameras (One Shoot Color)
Treatment: double-sided optical coating, anti-reflective

Effectively limits light pollution emitted by mercury, sodium, LED lamps
Practical alternative to the combination of "monochrome camera + filter wheel + 3 narrowband filters"
High transmission optimizing H-Alpha and O-III lines for better contrast of nebulae
Manufacturing precision via CNC machining for reliable performance