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Mirror/lens (catadioptric mechanism)

The catadioptric mechanism is an optical system that combines mirrors and lenses to achieve better image quality and eliminate some optical aberrations (image errors). This mechanism is common in telescopes, which use a mirror to reflect light rays and a lens to focus them. This combination allows for a more compact design, less aberration and greater luminosity, which is ideal for observing fainter objects in space.

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