This is a brand new Lumicon Deep Sky filter that's 1.25". I'm selling this due to the fact that I now use Lumicons 2" O-III filter when viewing nebulae now. This filter is in perfect condition with no scratches, etc. It will also be cleaned before shipping just to make sure it's in it's best shape when it arrives!
Lumicon Deep Sky Filter - 1.25"
This light pollution filter blocks all high & low pressure mercury and sodium vapor lamp light, neon lights and airglow, while transmitting the rest of the visible spectrum. Excellent for both visual and photographic applications. Visually, the Lumicon Deep Sky Filter is most useful under light-polluted skies, from where it reveals faint objects like star clusters, galaxies, nebulae and comets by darkening the background of space. Photographically, the Lumicon Deep Sky Filter enables deep space photos to be taken through city lights and blocks natural airglow at dark-sky sites, thus improving results in film and CCD astrophotography.
To ensure that your Lumicon Deep Sky Filter remains the World's Best, the strictest quality control standards are employed throughout the production process. Each Lumicon Deep Sky Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the primary emission lines.
Filed under: Eyepieces & Accessories