Maksutov–Cassegrain
/makˈsuːtɒf ˈkasɪˌɡreɪn/ /ˈmaksʊtɒf ˈkasɪˌɡreɪn/Astronomy
noun
A Maksutov–Cassegrain telescope or camera, having a deeply curved meniscus lens as a correcting plate and incorporating a small secondary mirror which reflects light back through a hole in the primary mirror.
Origin
1950s. From the names of Dimitri D. Maksutov and N. Cassegrain, French astronomer.