focal lengths短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 n.摄焦距原型focallength的复数 This works for all apertures and focal lengths, but the smaller the aperture and the shorter the focal length, and the greater the distance you shoot at, the greater the depth of field. 这在任何光圈和焦距上都适用，只不过光圈越小、焦距越短，景深越大，你能够拍摄的清晰长度就越大。362845005.qzone.qq.com