ZWO OIII 7nm 31.75mm Filter for Astrophotography - ZWO

Name: ZWO OIII 7nm 31.75mm Filter for Astrophotography - ZWO
Brand: ZWO
SKU: zwo-zwoiii7_125
Price: 169.00 EUR
Availability: InStock

ZWO OIII 7nm 31.75mm Filter for Astrophotography - ZWO

SKU: zwo-zwoiii7_125

Available within 7 days

€169,00 EUR

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Optimize your astronomical shots with the ZWO OIII 7nm filter of 31.75mm, specially designed for astrophotography. This narrowband filter targets the wavelength of 500 nm, significantly improving the contrast of nebulae and allowing for exceptionally clear images.

Features
Benefits
Compatibility
Included Items

FWHM bandwidth of 7 nm (+/-0.5)
90% transmission on the O-III line (500.7nm)
Cut-off in infrared (700/1100 nm)
High-quality Schott glass with a thickness of 1.85 mm
Precise optical polishing ensuring a wavefront at lambda/4 and parallelism < 30 arcsec
Double-sided optical coating with anti-reflective treatment
CNC machined aluminum construction for high precision
Available in 4 sizes: 31.7 mm, 50.8 mm, 31 mm and 36 mm unmounted circular

Significantly improves the contrast of nebulae in astrophotographic images
Reduces the effects of street lighting through precise wavelength selection
Enables the creation of "Hubble" style images in combination with H-Alpha and S-II filters
Increased durability and precision thanks to CNC machined aluminum construction