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| Unlike silver-halide film, an image sensor's photodiode for converting light into electrical signals is below the sensor surface. Consequently, light will not reach the photodiode unless it hits the sensor nearly head-on. This can impact the image in a variety of ways, including darkness and blurring. No consideration is given to the angle of incoming light with lenses for silver-halide cameras, because the angle at which light strikes the film has no impact on its photoreception. This is most noticeable around the image periphery of a wide-angle lens. |
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Film Schematic |
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| The ZUIKO DIGITAL lens features high resolving power, to get the most out of the imaging element. Specially designed for digital applications, it allows light to strike the image sensor nearly head-on, minimizing degradation of resolution and light intensity, even in the image periphery or when using a wide-angle lens. |
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Image Sensor Schematic |
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It was in 1936 that the Takachiho corporation, forerunner of today's OLYMPUS CORPORATION, introduced its first camera, the Semi-OLYMPUS I. The camera's lens was given the name ZUIKO, a Japanese word that means "light of the gods." It was an auspicious name, chosen partially because the lens had been developed at the Mizuho Optical Research Laboratory (in Japanese, the first character of the name "Mizuho" can also be read "zui"), and partially because the corporate name, Takachiho, is a Japanese word that means "mountain of the gods." But more than the name, it was the extremely high quality of the lens that sparked comment at the time. And ever since, ZUIKO lenses have been featured on succeeding generations of OLYMPUS cameras. The ZUIKO lenses for our OM SLR system 35mm film cameras, for example, were widely acclaimed for their remarkable resolving and imaging power, and became one of the world's most respected high-performance lens brands.
Now, drawing on traditional optical and lens production technologies, as well as the most advanced digital technologies, the ZUIKO brand has evolved. The result is the ZUIKO DIGITAL lens lineup, a series of dedicated high-performance lenses developed specifically for the next generation of digital SLR cameras. |
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