• (949) 451-1450 FAX: (949) 451-1460 • NOTE: Instructions for the use of optional accessories are not included in this manual. For details in this regard, see the Meade General Catalog. In the Schmidt-Cassegrain design of the Meade 8", 10", and 12" models, light enters from the right, passes through a thin lens with 2-sided aspheric correction ("correcting plate"), proceeds to a spherical primary mirror, and then to a convex aspheric secondary mirror. The convex secondary mirror multiplies the e