Note that this filter gives a green tint to observed objects. This means that there is an enormous increase in contrast with diffuse, planetary and extremely dim nebulae. It substantially improves contrast and outperforms the UHC for most planetary nebulae while on apertures of 10 or more, it outperforms the UHC filter for all types of nebulae. The difference is that this filter only allows the light of doubly ionized oxygen through. Can be used at both light-polluted and dark sky sites; blocks the light from mercury and sodium-vapour lamps Completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized; increases contrast through selective filtration-Anti-reflection coated to prevent glaring and ghosting It's a great accessory for observations of nebulae due to its capability to suppress all light that lies outside its 4960-5010 angstrom (496-501 nm) passband. And for nebulas, every little bit helps! 10 Best Filter For Nebula [Buying Guide 2022] • Sacred Car Astronomik UHC-E Filter ★ im Online Shop von kaufen Günstige... TM Designworks Chain Guide Orion Mars Filter Astromania 2" UHC Filter - Bundle With - 2" 2.5X Barlow Lens Astromania 2 Uhc Filter - Bundle With - 2 O-iii Filter Kit The Astromania 2 O-III Filter is comparable to the Astromania UHC filter in its function. This is a special narrowband filter which allows an even smaller range of wavelengths than the Astromania UHC filter. This filter can be used for astrophotography as well. A prime example is the Veil nebula in the constellation of Cygnus. Even so, there are innumerable astronomical objects which can be first observed in detail with this filter or cannot be seen at all without it. The O-III 2 Filter has a standart barrel diameter so you can use it with a telescope of any brand.
