Pegasus Astro Photographic Filter - Ha 2" Mounted Filter

Starting Price: $246.00
Price as Configured: $246.00
Brand: Pegasus Astro / SKU: PEG-FLTR-2M-Ha
Pegasus Astro has developed 2-inch mounted deep space photographic filters for broadband and narrowband usage.
Price as Configured: $246.00
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This narrowband filter has a 7nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, high and low pressure sodium vapor lights, and natural light caused by neutral oxygen emission in our atmosphere (i.e., skyglow). The narrowband H-alpha astrophotography filter allows for highest contrast and revealing subtle nebula details.

Filter Size: 2 inch
Polish: 1/4 wavefront, Parfocal
Transmission Range: T >80% 656 nm, 7nm FWHM
Coatings: Multilayer Anti-reflection
Type: Narrowband (7nm)
Shape: Round
Thickness: 5mm (filter) + 2.5mm (thread)
Thread: M48, 0.75 pitch