iOptron Filters OIII 1.25" (87504)
221.78 $
Tax included
This narrowband line filter is designed for astrophotography, specifically to enhance the visibility of emission nebulae by isolating key oxygen emission lines. By suppressing unwanted background light, it increases contrast and reveals fine structural details in nebulae. The filter is optimized for imaging rather than visual observing and is best suited for deep-sky photography under light-polluted or dark-sky conditions.