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OIII Filters

 
 

Looking for more thrills with your visual observing program? Then see what an Astronomik 2" OIII Visual Filter can do for you! Guaranteed to reveal hidden detail in the Veil, M97, the Owl, M27 the Dumbbell, Thor’s Helmet, and many others! Combining this filter with an eyepiece that yields between a 5mm and 7mm exit pupil will provide the most dramatic views regardless of which telescope you use.

Made in Germany with diffraction-limited optics, these filters will not degrade your image quality. With some of the toughest coatings that we have seen, your Astronomik OIII filter is protected from the impacts of scratching, aging, and humidity.