Sale! The SIICCD 7nm Photographic Extra Narrowband Filter is designed for nebula observation. Allowing 7nm bandwidth of light centered on a wavelength of 672nm through. Which adds in reducing the transmission of certain wavelengths of light, specifically those p
The SIICCD 7nm Photographic Extra Narrowband Filter is designed for nebula observation. Allowing 7nm bandwidth of light centered on a wavelength of 672nm through. Which adds in reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high- and low-pressure sodium vapor lights. Also including the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).
Cost: $25
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It usually takes [3-5] business days for standard shipping. Please note that this is an estimated time frame and may be affected by local holidays, and unforeseen circumstances.
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