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OpticsPlanet Guest Expert

OpticsPlanet utilizes many guest experts to provide high quality informative content on products that we sell, how to choose the right one for your use, and provide expert advice and tips. OpticsPlanet guest experts cover a wide range of topics from microscopes for discovering the world of cells and other micro organisms to telescopes for exploring the vast universe, which our planet is a part of. Whether you are an amateur or an expert, we're sure you will find useful information among all of the articles that our guest authors have created.


  • telescopes

1. Screws on the Bottom of a Reflector Telescope

DO NOT TIGHTEN! These screws are used to align the primary mirror. If you tighten these, your reflector telescope will no longer be in alignment and images will suffer. Worse yet, the mirror may come loose in the cell and you will need to reassemble the telescope!

How To Set Up Your Telescope