A catadioptric telescope with a spheroidal primary mirror of short focal length and a meniscus lens as a corrector plate. The secondary mirror is also spheroidal, and is often produced simply by aluminizing a spot on the convex centre of the corrector plate. This design is compact and gives superlative performance, but the steep curves on the meniscus corrector are difficult to make for large apertures and it is used mostly for amateur instruments. The field of view free from coma (see Coma, Optical) is comparatively small. A modern Maksutov has an aspheric primary mirror, which produces a flatter field of view. The design was published in 1944 by the Russian optician Dmitrii Dmitrievich Maksutov (1896–1964). See also Bouwers Telescope.