Nebular Filters for visual Observing
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Low cost UHC filter from Astronomik with wider transmission for smaller telescopes.
TeleVue OIII Filter - for a maximum of contrast at planetary nebulae - 1.25".
Astronomik CLS filter for contrasty observing and photography at light polluted sky.
High quality Astronomik UHC filter - also for smaller telescopes from 80 mm onwards.
Astronomik O-III narrowband nebula filter for telescopes from 150 mm aperture onwards.
Astronomik line filter H-Beta for the visual observing of nebulas with telescopes of 20 cm aperture or larger.
TeleVue UHC Filter - free of false coloured stars - 1.25".