Do you have a telescope diagonal that needs a good cleaning? Your telescope diagonal mirror is one of the most precise surfaces on the planed and requires special care! This is an in-dept guide on how to SAFELY clean your mirror diagonal! Buy on Amazon to Support AVT-Astro: Cotton Balls: https://amzn.to/31dOOtt Precision Q-tips: https://amzn.to/3NJzY2D Cotton Pads: https://amzn.to/48sCnr7 Air Blower: https://amzn.to/32Tb4ZZ Zeiss Cleaning Solution: https://amzn.to/3G0NuZs Optical Cleaning Brush: https://amzn.to/3H75XGk Get AVT Astro Gear and Apparel: https://avt-astro.com/shop/ My Blog full of great Astro content/reviews: www.avt-astro.com

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