| CPC H04N 23/62 (2023.01) [G06F 3/0346 (2013.01); H04N 23/55 (2023.01)] | 10 Claims | 

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               1. An image pick up apparatus comprising: 
            a lens apparatus, the lens apparatus comprising: 
                lenses, 
                  a fixed barrel, 
                  a rotatable ring configured to rotate about an optical axis, 
                  a plurality of buttons arranged on an exterior portion of the fixed barrel, and 
                  a mount configured to hold the lens apparatus, 
                an image pickup portion configured to capture an image formed by the lens apparatus; and 
                an attitude sensor, 
                wherein 
              each of the plurality of buttons arranged on the exterior portion of the fixed barrel of the lens apparatus is respectively assigned a function to be executed by operating each button; and 
                  the assigned function is switched in accordance with an attitude of the image pick up apparatus detected by the attitude sensor. 
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