The geometrical constraints upon Lorenzo Lotto’s putative optical projector for Husband and wife imply that the projected image would reveal large off-axis aberrations. Such aberrations are roughly as severe as the defocus blur claimed to have led Lotto to refocus the projector to surmount its limited depth of field. This result and other facts undercut claims that Lotto used a projector when executing this painting.

© 2007 Optical Society of America

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