Fisheye lens is a wide-angle lens that takes in an extremely wide, hemispherical image.the focal lengths of fisheye lenses depend on the film format.fisheye lenses achieve extremely wide angles of view by forgoing a rectilinear image, opting instead for a special mapping (for...
Dome-screen film (projection) fish-eye lens the view angle of the lens is from 160-degree to 272-degree, the relatibe aperture d/f is 1/2 to 1/2.6, and the dimension of the target surface from 0.7 to 1.8 inches. It has the teatures of high brightness, high resolution, and clear...
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