Vaonis Vespera Dual Band Filter
The Vespera Dual Band Filter Provides Increased Contrast for Nebula and Other Celestial Objects!
Whether observing in a light polluted urban area or a more natural environment, this dual-band filter will increase the contrast of your images. This filter is especially useful for imaging nebula.
The dual band means that this filter restricts incoming light to the wavelengths of Hydrogen Alpha (H-Alpha or HA) and Oxygen III (O-III). These wavelengths are especially pronounced with nebula and results in increased contrast between the object and the background. Therefore, additional detail is visible for a higher quality image.
The Vespera Dual Band Filter Significantly Improves Photo Quality in Urban or Natural Environments!
This dual narrowband interference filter will significantly improve image quality. The dual bands allow light pass through only the wavelengths associated with H-Alpha, and O-III gases. This results in greater contrast between the observed object and the celestial background, especially with nebulas, as well as sharper, more refined stars and other details.
This dual band filter will especially improve contrast and detail for nebulae in emission, dark nebulae with hydrogen emission, planetary nebulae, and supernovae remnants. It will also sharpen the stars of globular clusters, among others.
The dual band filter is not designed for observing galaxies, the Moon, individual stars, or planets. In addition, this filter will not adequately filter light from LED sources.
The allowed transmission for this dual band filter occurs at a 12 nm width centered at 500.7 nm (for O-III) and at 656.3 nm (for HA).
Designed Only for the Vaonis Vespera
This filter has been specifically designed by Vaonis only for their Vespera smart telescope. This allows the filter to be used at full aperture, with no impact to the optical diameter of the instrument. The lens ring of the filter is equipped with an electronic micro-card that allows the Vespera to detect the filter and adapt its internal software for the best possible imaging. Installation is simple: just remove the standard Vespera lens ring and insert the dual band filter into the optical arm until a click is heard. The Singularity app will confirm that the filter has been detected.