This Astromania filter only allows the visible light between 400 and 780nm through. The UV and IR regions of the spectrum are completely blocked.

The advantages in a nutshell: Only lets through visible light; blocks the UV and IR range; particularly useful for planetary imaging with webcams; optically polished and coated; continued in a robust 1.25" aluminium housing. Blocking UV light: The harmful UV rays that can contribute to cataracts are filtered out. The filter is also essential when using a Herschel wedge. CCD exposures of planets and stars - sharp images: A CCD camera is not only sensitive to visible light but also to other wavelengths. Planets not only shine in visible light, but also in the infrared for example. But they are out of focus in the IR region. The Astromania filters only lets through the visible light, the light that is really 'wanted', meaning sharp planetary images. Really sharp planetary images are only possible using an IR/UV blocking filter. This Astromania filter only allows the visible light between 400 and 780nm through. The UV and IR regions of the spectrum are completely blocked.

Water Resistance Level: Not Water Resistant. Photo Filter Effect Type: Ultraviolet. Photo Filter Thread Size: 1.25 Inches. Material: Aluminum. Brand: Astromania. Manufacturer: Astromania. Date First Available: April 21, 2016. Is Discontinued By Manufacturer: No. Best Sellers Rank: #56 in Telescope Filters. Customer Reviews: 4.6 out of 5 stars 45 ratings 4.6 out of 5 stars. Item model number: SKU_AM_ZF1IR. : B01EL9G626. Item Weight: 0.2 ounces. Product Dimensions: 2.79 x 2.74 x 0.56 inches.