Similar to アナスチグマート

Achromatic lens

Aplanatic lens

Apochromat

Chromatic aberration

Spherical aberration

Coma (optics)

Thirty Meter Telescope

Schott AG

Petzval field curvature

Astigmatism (optical systems)

Distortion (optics)

Ap and Bp stars

Telescope

List of largest optical reflecting telescopes

List of largest optical refracting telescopes

Kilodegree Extremely Little Telescope

MAGIC (telescope)

MASCARA

Overwhelmingly Large Telescope

Qatar Exoplanet Survey

SPECULOOS

XO Telescope

William Herschel Telescope

Space telescope