55mm
例句释义:1.d: please look straight ahead . let me check the distance between the pupils . it's 55mm. here is the prescription for you glasses.医生：请向前看。我量下瞳孔距离。55毫米。这是您的配镜处方。
2.Even as a cheap, plastic lens, the 18-55mm is sharp, sharp, sharp, and focuses so close that few people will need a dedicated macro lens.甚至作为一个廉价的塑料镜头，镜头，18-55mm是尖锐的，尖锐，锋利，并着重如此接近，几乎没有人将需要一个专门的微距镜头。
3.While it won't get as wide a shot as an 18-55mm kit they're much brighter lenses.虽然该镜头的角度不如18-55mm宽广，但成像要鲜艳许多。
4.Even so, it's still bulky and big. It weighs 27. 1 ounces, and is 5 inches wide and 6 inches deep with its included 18-to-55mm lens.即便如此，带有18-55mm镜头的她，重达27.1盎司（768.3克），5英寸宽（12.7厘米）和6英寸高（15.24厘米）的体积还是略显笨拙。