ZWO 7nm Narrowband Filter Set - 36mm Unmounted
ZWO
ZWO 7nm Narrowband 36mm Filter Set is a SHO narrowband filter set in 36 mm for mono emission-line imaging.
Specifications
Filter
- Filter type
- SHO narrowband filter set
- Filter size
- 36 mm
- Glass thickness
- 2 mm
Spectral
- Passbands
- H-alpha 656.3 nm (7 nm) / OIII 500.7 nm (7 nm) / SII 672 nm (7 nm)
- Band count
- 3 bands
- Narrowest bandpass
- 7 nm
- Blocking
- Blocks common artificial light and airglow outside SHO emission lines
Construction
- Substrate / coating
- Optical glass; Multi-layer anti-reflection coating
Use
- Camera use
- Mono astronomy cameras
- Best for
- Emission nebulae, SHO / Hubble palette imaging
Astrophotography Fit
Best for isolating emission lines with a mono camera and filter wheel.
ZWO 7nm Narrowband 36mm Filter Set is a midrange SHO narrowband filter set (36 mm). Passbands: H-alpha 656.3 nm (7 nm) / OIII 500.7 nm (7 nm) / SII 672 nm (7 nm).
Best for isolating emission lines with a mono camera and filter wheel.
Choose filter size around the sensor diagonal, telescope speed, and filter-wheel or drawer geometry. Flats are still required; a filter can improve contrast, but it will not rescue tilt, bad focus, or poor calibration.
Best paired with
- Monochrome camera, matching filter wheel, and autofocus offsets
- Ha/OIII/SII emission nebula projects
- Long integrations with darks, flats, and careful star handling
Not recommended for
- Unmodified color cameras as the primary workflow
- Targets dominated by broadband continuum signal
- Users who want natural star color with minimal processing
Where To Buy
Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.
| Retailer | Price | Availability | View Offer |
|---|---|---|---|
| Cloud Break Optics Cloud Break Optics | $199.00 | In stock Updated 5/10/2026 | View Offer - $199.00 |
| ZWO USA ZWO USA | $549.00 | In stock Updated 5/15/2026 | View Offer - $549.00 |
Price History
Chronological retailer pricing with out-of-stock points shown at reduced opacity.