1989-05-23
1990-03-27
Perkey, W. B.
354402, 354406, G03B 300
Patent
active
049124935
ABSTRACT:
An interchangeable lens for a camera having a focus detecting device includes a memory having a plurality of memory areas. Each of the memory areas stores different correction values for correcting the focus condition of the lens for aberrations. Setting apparatus is coupled to the memory and allows the correction values from one of the memory areas to be enabled in order to carry out correction of the lens focus.
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Canon Kabushiki Kaisha
Perkey W. B.
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