3 this question is actually exactly about _not_ astrophotography. :)
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In astronomy, telescopes are most commonly built with mirrors, but there are refractors using lenses. All cameras I know of for Earthly purposes - portraits, landscapes, etc -. — use only lenses, not mirrors. Are they some special purpose cameras based on mirrors, other than for astrophotography?

In astronomy, telescopes are most commonly built with mirrors, but there are refractors using lenses. All cameras I know of for Earthly purposes - portraits, landscapes, etc - use only lenses, not mirrors. Are they some special purpose cameras based on mirrors, other than for astrophotography?

In astronomy, telescopes are most commonly built with mirrors, but there are refractors using lenses. All cameras I know of for Earthly purposes portraits, landscapes, etc. — use only lenses, not mirrors. Are they some special purpose cameras based on mirrors, other than for astrophotography?

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Cameras using mirrors instead of lenses?

In astronomy, telescopes are most commonly built with mirrors, but there are refractors using lenses. All cameras I know of for Earthly purposes - portraits, landscapes, etc - use only lenses, not mirrors. Are they some special purpose cameras based on mirrors, other than for astrophotography?