Check out our full line of Astronomik OIII filters! From 1.25” filters designed for visual use, to clip filters designed for imaging with your DSLR, whatever your goals we have the filters that you desire here at High Point Scientific! Astronomik OIII filters are specifically designed for revealing and enhancing very dim gaseous and planetary nebulae. The extremely narrow pass band of the two OIII lines brings a substantial contrast gain to these lines even under the best observation conditions. On faint supernova remnants or planetary nebulae, an Astronomik OIII filter can often make the difference as to whether you will see the object or not!
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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.