Far-field formulation of a Cassegrain reflector using a novel illumination function and aperture field integration | International Journal of Microwave and Wireless Technologies | Cambridge Core
In a reflecting telescope (Cassegrain), is there a difference between using a concave or convex secondary mirror? - Astronomy Stack Exchange
Sky-Watcher Skymax 102 mm Maksutov-Cassegrain Telescope OTA | High Point Scientific