New Improved Generation 3 Lumicon 2 inch Oxygen III Filter

Some of our filters don't make the cut to be sold in our premium line, however they are still excellent by normal standards and we are offering them here at a discount.

Please keep in mind that even though we have "rejected" these filters they still exceed industry standard for optical filters. Have confidence that these filters will still produce the same high quality images as our other filters even though they have a minor imperfection.

These filters are offered at a discounted price and are limited to stock on hand. Returns will only be accepted if the filter is in exactly the same condition we sent it. We photograph each filter in transmission and reflection as part of our QC process and images are retained for reference. A 25% re-stocking fee will be assessed for returns.

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"I've used many O III filters over the years, but the Lumicon Generation 3 Oxygen III filter exceeded the performance of any of them." -Rod Mollise of Sky and Telescope Magazine

Generation 3 Lumicon 2 Inch Oxygen III Filter visually isolates the two doubly ionized oxygen lines (496 and 501nm lines) emitted by diffuse, planetary and extremely faint nebulae.

Oxygen III Filter helps faint objects become much more visible against the blackened background of space and produces near-photographic views of the Veil, Ring, Dumbbell and Orion nebula, among many other objects. This filter performs well under both light-polluted and dark skies.

Lumicon filters remain the world’s best and strictest quality control standards are employed throughout the production process. Each Lumicon Oxygen III Filter is individually inspected and scanned with the percentage of light transmittance of the OIII emission lines.

Nebula Bandpass Filters

Lumicon 1.25 Inch Hydrogen-β Filter

Lumicon 1.25 Inch Gen3 UHC Filter

Lumicon 1.25 Inch Oxygen III Gen 3 Filter

Lumicon 2 Inch Econoline Oxygen III Filter

Lumicon 2 Inch SCT Rear Cell UHC Filter

Lumicon 2 Inch Gen3 UHC Filter

Lumicon 2 Inch SCT Rear Cell Oxygen III Filter

Lumicon 2 Inch Gen3 Oxygen III Filter

Lumicon 2 Inch Gen3 Oxygen III Filter (2nd Quality)