Customer Education
To help you get the best result from your project, we publish our methods openly — the same procedures we use in the lab. Everything here is free to use, and you are welcome to contact us with questions.
Cleaning Your Telescope Mirror
A dirty mirror costs you far less performance than most people assume, and a badly cleaned one can cost you the coating. This is our most watched video: how to clean a telescope mirror at home without damaging the surface.
If a mirror is genuinely past cleaning, recoating is the answer rather than harder scrubbing. See our coating services.
Diagonal Calculator
We offer this software utility to calculate the correct size diagonal mirror for your Newtonian telescope project. It is straightforward to use and handles off-axis illumination calculations as well.
Download the install package — Windows installer.
Packing & Shipping Your Optics
Most shipping damage happens before the parcel is collected. These two videos show exactly how we want optics wrapped and boxed for the journey to us — follow them and your mirror arrives in the condition it left in.
More Videos
We publish instructional videos covering telescope optics, from mirror care through to coating and testing procedures in the lab.