Answer
Improved stereoscopes, developed by Sir David Brewster, revolutionized the field of photography by providing a captivating 3D viewing experience. Brewster's innovation built upon the concept of stereoscopy, combining two slightly offset images to create an illusion of depth. The improved stereoscope enhanced image clarity, offering a more immersive and realistic representation of scenes, and made stereoscopic photography a widespread popular pastime in the Victorian era.