HOW TO CLEAN MY TELESCOPE
There's a good reason to ignore dirt, aside from reducing the things to worry about in life. A dirty lens or mirror can always be made clean, but a scratched one is scratched forever. Cleaning causes tiny scratches, or sleeks, if you don't do it right, and maybe even if you do. A few sleeks don't matter, but a lot of them will. So clean your optics rarely.
the traditional method for dusting optics is to brush lightly with a camel's-hair brush. Sold in camera shops, these brushes have soft bristles with minimum tendency to scrape grit against a lens. Brush very lightly. Store the brush in its container or a plastic bag.Camera shops also sell cans of compressed gas for blowing dust off lenses. Be careful with the kind that use liquid propellants; these have a reputation for spitting onto the glass and leaving a residue if the can is tipped or shaken in use. Blowing (instead of sucking) with your own breath is also likely to leave spit marks.
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