Some cameras can change the focal length by rotating its lens. And if the lens is not capable of applying certain scenarios, the photographer may also switch the lens to meet the requirement.
StephenYangjz
It's interesting that nowadays there are more cameras that focus on a smaller sensor (such as ASPC and 4/3) in exchange for the convenience of the size and speed of autofocus (especially for video cameras). However smartphones nowadays are trying to fit in a sensor that's as large as possible to get better low light performances. There are flagship phones that are even fitting a close to 1-inch sensor into it, making the phone more and more bulky and heavy.
LinyueSong
@StephenYangjz: FYI, the so-called "1-inch" sensors have no dimensions measures that are close to 1 inch, no matter how you measure them. They are called this way for some historical reasons and Sony's "smart" marketing.
Some cameras can change the focal length by rotating its lens. And if the lens is not capable of applying certain scenarios, the photographer may also switch the lens to meet the requirement.
It's interesting that nowadays there are more cameras that focus on a smaller sensor (such as ASPC and 4/3) in exchange for the convenience of the size and speed of autofocus (especially for video cameras). However smartphones nowadays are trying to fit in a sensor that's as large as possible to get better low light performances. There are flagship phones that are even fitting a close to 1-inch sensor into it, making the phone more and more bulky and heavy.
@StephenYangjz: FYI, the so-called "1-inch" sensors have no dimensions measures that are close to 1 inch, no matter how you measure them. They are called this way for some historical reasons and Sony's "smart" marketing.