What are the differences between “cheap” and “expensive” magnifiers?
Magnifiers work by bending light. They do this through the curve of their surface and the material they are made from. Expensive magnifiers generally use more sophisticated methods of manufacture to ensure that the material is as distortion free as possible, and that the surfaces focus the light as clearly as possible. Some expensive magnifiers also come with surface treatments to reduce reflections and make them more resistant to scratches, or easier to clean. Generally, if you are using a magnifier for fine work, or for long periods of time it is worth spending the extra money to get better quality.
