Cowan, Liebowitz & Latman, P.C.
Image pickup apparatus and lens unit
A first lens unit performing communication with an image pickup apparatus with a first voltage and a second lens unit performing communication with the image pickup apparatus with a second voltage are selectively attached to the image pickup apparatus. The image pickup apparatus includes a controller configured to operate with a third voltage different from at least one of the first and second voltages to output a signal for the communication with the first and second lens units, and a determiner configured to determine the type of the lens unit attached to the image pickup apparatus. The controller is configured to produce, as a voltage of the signal for the communication, from the third voltage, one of the first and second voltages corresponding to a determination result of the determiner.
Canon Kabushiki Kaisha
G G G G G H G G G H G G G H G G H
G02B G03B G02B G03B G03B H04N G02B G02B G02B H04N G02B G02B G02B H04N G02B G02B H04N
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Tetsuya Tatsuyuki Takashi Yoshihiko Hiroshi Azusa
Nishio Tokunaga Hasegawa Konno Kikuchi Sugawara