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H-Alpha Filter 7nm ZWO 36mm Round Unmounted - ZWO
H-Alpha Filter 7nm ZWO 36mm Round Unmounted - ZWO
SKU: zwo-zwha7_36c
Available within 7 days
Unable to load pickup service availability
The ZWO H-Alpha 7nm filter is specially designed for astrophotography, focusing on the wavelength of 656nm. In combination with the O-III and S-II filters, it allows for images similar to those of the Hubble Space Telescope. This filter selectively reduces the transmitted wavelengths, eliminating the effects of street lighting and the Moon, while providing significant contrast for celestial objects emitting in H-alpha.
- Transmission wavelength: 656nm (H-Alpha)
- Bandwidth: 7nm (FWHM)
- Material: High-quality Schott glass
- CNC machined aluminum cell for maximum precision
- Availability: 31.7mm and 50.8mm, as well as 31mm and 36mm unmounted circular
- Double-sided anti-reflective optical coating
- Glass thickness: 1.85mm
- Parallelism < 30" arc on both surfaces
- Enhances the contrast of hydrogen nebulae
- Reduces the intensity and number of bright stars in the image field
- Eliminates the effects of street lighting and the Moon for clearer images
- Easy to combine with O-III and S-II filters for "Hubble-like" images
- Compatible with O-III and S-II filters for advanced astrophotography
- Suitable for CCD photography systems and modified digital photography housings
- 7nm unmounted circular H-Alpha filter
- Machined aluminum cell
