Cassegrain Mirror

These Classic Cassegrain Mirror is made up of a parabolic primary mirror and a Hyperboloidal secondary mirror, and it obviously eliminates spherical aberrations. By classic style polishing method, we can make sure of high degree of accuracy. It has a advantage of achromatism, long focal length, clear imaging, large amplification, etc. The Classic Cassegrain system offers the best optical solution for precise large telescope.
Diameter (mm): 424/310/310
Clear Aperture (mm): 410/300/300
Equivalent Focal Length(mm): 5000/3600/3000
Primary Mirror Edge Thickness(mm): 55/42/42
Secondary mirror Edge Thickness (mm): 18/18/18
Inner Diameter(mm): 100/75/80
Coating: Aluminum