2" Optolong L-eNhance Light Pollution Reduction filters
The dual-band pass filter allows you to image in heavily light-polluted areas. It effectively isolates the Hydrogen-Alpha, Hydrogen-Beta, and Oxygen III nebula emissions with a maximum transmission of up to 90%.
2" Optolong L-eXtreme Light Pollution Reduction filter
The filter blocks the weaker H-beta emission line at 486nm to deliver better contrast in the fainter regions of nebulae. The narrower bands of the filter are especially important in blocking moonlight and broadband light pollution found in many suburban areas.
2" ZWO Duo-Band filter
Focuses on the H-alpha and OIII wavelengths and it deals well with light pollution. It helps improve the contrast and visibility of deep sky objects such as emission nebulas. Narrowband imaging doesn't get more convenient.
2" Antares Moon filter
It provides 13% light transmission which helps with the lunar glare.
1.25" Murnaghan Near-Infrared filter
Transmits the infrared completely blocking UV/Visible light. Red light begins in red 700nm and ends at 1100nm which is the maximum of most CMOS detectors, but beyond the sensitivity of our eyes. The near-infrared light can pass thru nebula dust.
1.25" Murnaghan Infrared Exclusion filter
Eliminates infrared light from 690nm to >1100nm, but visible light from 325 - 390nm is transmitted. I have used these specialty filters since 1997...provides you with a different view of the deep sky objects.
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