The main use of the Schmidt-type telescope, which uses a spherical primary mirror and a refracting "corrector plate," is for
A) narrow field-of-view photography and photometry.
B) single-star spectroscopy.
C) wide-angle photography for sky surveys.
D) radio astronomy.

Question

Quizplus · Accepted Answer

The Schmidt-type telescope is specifically designed for wide-angle photography, making it ideal for sky surveys. Its corrector plate corrects for spherical aberration, allowing for clear images across a wide field of view.

The Main Use of the Schmidt-Type Telescope, Which Uses a Spherical