1938年杰克·宾得（作为一个艺术家而闻名）第一次使用“零重力”，事实上是指地球核心的无重力状态。

The first known use of "zero-gravity" is from Jack Binder (better known for his work as an artist) in 1938, and actually refers to the gravityless state of the center of the Earth's core.

youdao

APS - C则是使用较为普遍的制式，在佳能、尼康、宾得以及索尼等单反上均有采用。

APS-C is by far the most common format, used in virtually all Canon, Nikon, Pentax and Sony DLSR models.

youdao