Large format lenses are photographic optics that provide an image circle large enough to cover the large format film or plates used in large format cameras. == Image coverage == Photographic optics generally project a circular image which is only required to have acceptable correction of aberrations over a diameter comparable to the largest intended film/sensor dimension (typically the frame diagonal) with little room to spare.
Large format lenses are photographic optics that provide an image circle large enough to cover the large format film or plates used in large format cameras. == Image coverage == Photographic optics generally project a circular image which is only required to have acceptable correction of aberrations over a diameter comparable to the largest intended film/sensor dimension (typically the frame diagonal) with little room to spare.
Source: Wikipedia "Large format lens" · CC BY-SA 4.0
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