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SKU : OL-UHC-2
Product Details
UHC Light Pollution Filter:
The UHC (Ultra High Contrast) broadband filter is designed to improve the visibility of various deepsky objects. By selectively reducing the transmission of wavelengths of light pollutants, specifically those produced by artificial lights including mercury vapor lamps, both high and low pressure sodium vapor lights, and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).
Together with the highly transparent in main nebula emission lines at OIII (496nm and 500nm), H-beta (486nm), NII (654nm and 658nm), H-alpha (656nm), as well as SII (672nm), the filter is suitable for enhancing the contrast and details for both visual and photographic purpose at sub-rural areas with heavy light pollution.
Main Use and Performance
Technical Data
Coating Parameter
Filter Cell
Sizes
Spectral Curve
specifications
Bandpass | Multi Bandpass |
Filter Thickness | 2mm |
Filter Type | High Contrast |
Free Shipping | Yes |
Shape | Round |
Size | 2" |
included items
Superfast shipping, nice careful packaging. Thank you!