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Advanced technology guide: The ultra-wide lens phenomenon

Advanced technology guide: The ultra-wide lens phenomenon

What Digital Camera - Technology

What are the technological developments that have led to building and using wider and wider lenses?

ultra wide lenses
A focal length of 14mm on full frame allows a wide field of view and an exaggerated perspective. Photo by Bob Newman
What are the technological developments that have led to building and using wider and wider lenses?