How often did dust or fluff ruin an observation session on your eyepiece or telescope? A harmless -looking hair streak, which is scattered over the lens in your photos or astrovers, can require cleaning for hours in an image editing program, and a greasy thumbprint or a stain on the look can lead to an otherwise perfect image in the trash. This is where the Celestron lenses is used, an optical cleaning device with a double function that is small and light enough to stay in your telescopic accessories or camera bag, so it is always at hand when you need it. The lensing is two cleaning tools in one. One end contains a soft brush to remove dust and other particles from any optical surface. The other end of the lensing takes care of stains and spots that cannot be wiped away. This device has a special cleaning tip that works without liquids and therefore never dries out. A cap protects the tool for removing stains if it is not used while the brush is securely sunk in letting. When cleaning optics, it is always best to use the brush first, even if you think it is unnecessary. Brush the entire surface carefully and then check your work. If you discover stains or spots, remove them with the cleaning element by slight touch. The Celestron lenspen is a great tool for all of your optical equipment, including eyepieces, telescopes, spending, binoculars, microscopes, cameras, lenses and more.