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The analog camera you use most likely has no autofocus and thus has a split prism. These are great for manual focusing, but not so great for auto exposure (AE), as AE is done after the focusing screen. Since AF usually works fast (and has a confirmation by LEDs), most cameras use plain focusing screens, though some professional cameras offer interchangeable ...


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Your assumption about analog vs. digital viewfinders is incorrect. Some digital cameras still use "two misaligned half circles" for focusing and some analog film cameras do not. "two misaligned half circles" for focusing is also called "Split Prism" and was a focusing aid used in most older, Manual Focus cameras. When Auto Focus lenses were developed for ...


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