ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 36mm Round Unmounted
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
- This item is out of stock.
- We have no ETA from the manufacturer at this time.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
Lower 48 States:
Orders over $50 ship free within the Lower 48 using a carrier and service we select based on your items and delivery location. Faster shipping options may be available at checkout.
U.S. Outside the Lower 48 (AK, HI, PR):
Free shipping on orders over $50 applies to many—but not all—items. Add items to your cart and enter your ZIP code to see available shipping options and any costs.
International Orders:
Free shipping does not apply to international orders. You’ll see available shipping options and costs during checkout. Some items can’t be shipped internationally due to size or manufacturer restrictions. Duties, taxes, brokerage fees, and tariffs are not included and are the customer’s responsibility.
Latest "New" ZWO version
The ZWO 36mm SHO Filter Set includes three 36mm round unmounted astrophotography filters that pass light in a narrow 7nm band from ionized sulfur (SII) at 672nm, Hydrogen Alpha (at 656nm), and ionized oxygen (OIII) near 500nm. By taking individual images with each of these filters and a monochrome astronomy camera (sold separately) and combining the images with standard processing techniques, you can create high-contrast images of emission nebulae (like the Orion, Lagoon, and Eagle Nebulae), planetary nebulae (such as the Ring, Dumbbell and Helix Nebulae), and supernova remnants such as the Veil Nebula.
The images made can also be combined with images from LRGB filters (sold separately) to create highly detailed full color images, even when captured in relatively light-polluted sky. These filters also block UV and IR light to ensure sharp star images.
Each of the filters in this set are 2mm thick and polished to ¼-wave and fully multicoated to ensure optimum image quality. With peak transmission of >80% at each of the three passbands, the ZWO narrowband SHO filter set is ideal for use with monochrome ZWO cameras and ZWO manual or electronic filter wheels that accept 36mm round unmounted filters (filter wheel sold separately).
This set is not suitable for imaging with DSLRs or one-shot color astronomy cameras. It is not suitable for cameras with full-frame sensors because the edges of such larger sensors are blocked by the filter apertures. For full-frame sensors, choose 2” mounted filters (for up to full-frame sensors).
Technical Data:
- FWHM：7±0.5nm
- Thickness 2mm
- Fine-optically polished to ensure accurate 1/4 wavefront over the both surfaces
- 80% transmission at H-alpha line 656nm (H-Alpha filter )
- 80% transmission at SII line 672nm (SII filter )
- 80% transmission at major OIII line 500nm (OIII filter )
Other Information
- Country of Manufacture: China
Latest "New" ZWO version
The ZWO 36mm SHO Filter Set includes three 36mm round unmounted astrophotography filters that pass light in a narrow 7nm band from ionized sulfur (SII) at 672nm, Hydrogen Alpha (at 656nm), and ionized oxygen (OIII) near 500nm. By taking individual images with each of these filters and a monochrome astronomy camera (sold separately) and combining the images with standard processing techniques, you can create high-contrast images of emission nebulae (like the Orion, Lagoon, and Eagle Nebulae), planetary nebulae (such as the Ring, Dumbbell and Helix Nebulae), and supernova remnants such as the Veil Nebula.
The images made can also be combined with images from LRGB filters (sold separately) to create highly detailed full color images, even when captured in relatively light-polluted sky. These filters also block UV and IR light to ensure sharp star images.
Each of the filters in this set are 2mm thick and polished to ¼-wave and fully multicoated to ensure optimum image quality. With peak transmission of >80% at each of the three passbands, the ZWO narrowband SHO filter set is ideal for use with monochrome ZWO cameras and ZWO manual or electronic filter wheels that accept 36mm round unmounted filters (filter wheel sold separately).
This set is not suitable for imaging with DSLRs or one-shot color astronomy cameras. It is not suitable for cameras with full-frame sensors because the edges of such larger sensors are blocked by the filter apertures. For full-frame sensors, choose 2” mounted filters (for up to full-frame sensors).
Technical Data:
- FWHM：7±0.5nm
- Thickness 2mm
- Fine-optically polished to ensure accurate 1/4 wavefront over the both surfaces
- 80% transmission at H-alpha line 656nm (H-Alpha filter )
- 80% transmission at SII line 672nm (SII filter )
- 80% transmission at major OIII line 500nm (OIII filter )
Latest "New" ZWO version
The ZWO 36mm SHO Filter Set includes three 36mm round unmounted astrophotography filters that pass light in a narrow 7nm band from ionized sulfur (SII) at 672nm, Hydrogen Alpha (at 656nm), and ionized oxygen (OIII) near 500nm. By taking individual images with each of these filters and a monochrome astronomy camera (sold separately) and combining the images with standard processing techniques, you can create high-contrast images of emission nebulae (like the Orion, Lagoon, and Eagle Nebulae), planetary nebulae (such as the Ring, Dumbbell and Helix Nebulae), and supernova remnants such as the Veil Nebula.
The images made can also be combined with images from LRGB filters (sold separately) to create highly detailed full color images, even when captured in relatively light-polluted sky. These filters also block UV and IR light to ensure sharp star images.
Each of the filters in this set are 2mm thick and polished to ¼-wave and fully multicoated to ensure optimum image quality. With peak transmission of >80% at each of the three passbands, the ZWO narrowband SHO filter set is ideal for use with monochrome ZWO cameras and ZWO manual or electronic filter wheels that accept 36mm round unmounted filters (filter wheel sold separately).
This set is not suitable for imaging with DSLRs or one-shot color astronomy cameras. It is not suitable for cameras with full-frame sensors because the edges of such larger sensors are blocked by the filter apertures. For full-frame sensors, choose 2” mounted filters (for up to full-frame sensors).
Technical Data:
- FWHM：7±0.5nm
- Thickness 2mm
- Fine-optically polished to ensure accurate 1/4 wavefront over the both surfaces
- 80% transmission at H-alpha line 656nm (H-Alpha filter )
- 80% transmission at SII line 672nm (SII filter )
- 80% transmission at major OIII line 500nm (OIII filter )
Other Information
- Country of Manufacture: China
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 36mm Round Unmounted