Astromania 1.25" IR/UV Blocking Filter - Keeps Your Planetary Images Sharp

Really sharp planetary images are only possible using an IR/UV blocking filter; this Astromania filter only allows the visible light between 400 and 680nm through; the UV and IR regions of the spectrum are completely blocked SHARP IMAGES: A CCD camera is not only sensitive to visible light but to other wavelengths; planets are out of focus in the IR region; the Astromania filters only lets through the visible light; meaning sharp planetary images 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 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 1.25inch aluminium housing This is a very high quality filter that allows you to view more clearly