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Today, I got a telescope that my neighbor was giving away for $5. It is a TwinStar AstroMark 80mm 16-40x Portable Refractor Telescope, which is normally valued at ~$40. I set it up tonight and looked at Venus, but the image had lots of water spots on it. I took the included lens wipe and wiped off the front lens, but the image did not improve very much. The viewing aperture and a few of the other lenses looked kind of smudgy, but I did not want to try wiping them without knowing more about it. Does anyone have any recommendations for cleaning the lenses of a telescope like this? Also, could there be a focusing issue on my part? I guess there could also be damage to the lenses, but I'm hoping that is not the case. I was going to look at the moon to see how well it is resolved, but the moon is not going to be above the tree line where I live until after I go to bed. If you have any recommendations for cheap, entry-level telescope accessories or even replacements in case this one is broken, please share. This is my first telescope, so thank you for any help you can provide.