Optical Filter Astronomy Hb & OIII Nebula EBAY 2"

A Precision Interference Filter for  EBAY Astronomers that selectively transmits the Hydrogen beta and Oxygen III emission of Galaxies. Specifically produced for EBAY customers, this filter has had significant development to produce excellent transmission of the Oxygen lines at 496.9 nm, 500.4 nm, as well as the 486 Hydrogen, while attenuating most of the background light from other sources. This is a relatively wide pass band nebula filter. The filter is Mounted in a standard 48 mm eye piece ring. Specifications follow: Central Wavelength, To pass 494, and 486 to 500.4 nm with typical 90%, as well as > 50% (Typically 50% of 656.3nm; Size, 1.78 +0-.006 inches (45mm); mounted in 48mm eye piece ring. Thickness 2.1 mm. Filter supplied with actual spectral data.

If you don't find your need, try a wild card search. Go to my BJOMEJAG EBUYER STORE and add an * or so to the description, to get close matches.

For a most comprehensive assortment of filter solutions, follow the link at my store, under "Technical Data" to the Omega 'Build A Filter' tool. Millions of potential matches are available. Prices are very reasonable if you indicate "cosmetic seconds acceptable".

Powered by eBay Turbo Lister
The free listing tool. List your items fast and easy and manage your active items.

Sellers: Get your own map today. Click here now. Simple."