Abstract: A structure of a housing mounted with a lens unit is provided that is capable of withstanding internal pressure changes and ensures shock-resistance while being waterproof and thin. This structure for a housing includes a lens unit 8 that is mounted in housings 3 and 4, a porous film 11 that is attached to the inner surface toward a ventilation hole 31 formed in the housing 3, an elastic member 9 that is interposed between the lens unit 8 and the porous film 11, and a shock-absorbing member 10 that is interposed between the housings 3 and 4 and the lens unit 8. The elastic member 9 is a lens holder that is interposed between the porous film 11 and a portion of the shock-absorbing member 10, and has a through-hole 91 in an area corresponding to the ventilation hole 31 in the housing 3.

Abstract: In an image pickup apparatus, a light receiving unit produces a first signal at a first timing and a second signal at a second timing later than the first timing. First and second parameters for detecting a scene change are acquired based on the first and second signals, respectively. The presence or the absence of a scene change is determined based on both the parameters. The apparatus further includes a selecting unit configured to select a focusing target AF area from among a plurality of AF areas, and a focusing control unit configured to execute focusing control by using focusing information with respect to the AF area selected by the selecting unit. When the determining unit determines that the scene change is not present, the selecting unit selects the AF area having been selected at the first timing, as the focusing target AF area, at the second timing continuously.