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MrStarGuy 1.25in O-III Nebula FWHM 25nm Filter has been discontinued by MrStarGuy and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Telescope Accessories yourself to try and find the perfect replacement for you!
The 1.25in O-lll filter is designed for visual observation of emission nebulae, particularly planetary nebulae. This filter passes only the 2 wavelengths of ionized Oxygen of light so that even the faintest details can be observed. The view if exceptional to very edge of the field of view with this high quality filter. The optical quality of your scope will be enhanced by these O-lll Filters with the industry's best light transmission of nearly 100% . Use of a large aperture scope is suggested. The O-lll Filters are best used for dark sky visual observation and DSLR photography, yet it will enhance some nebulae views in brighter skies. For use with CCD photography, we recommend an IR block filter.