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EF 24-70mm f/2.8L USM是深受摄影师喜爱的一只镜头,这只镜头于2002年发布,到2012年已经“服役”了十年,佳能在2012年2月发布了新一代的24-70mm红圈标准变焦镜头——EF 24-70mm f/2.8LⅡUSM,可谓“十年磨一剑”。在EF 24-70mm f/2.8LⅡUSM(后文简称“新24-70”)推出后,Roger Cicala将其与EF 24-70mm f/2.8 USM(后文简称“老24-70”)进行了拆解对比。在一探两代佳能24-70mm标准变焦镜头的内部结构之前,我们先来看看两代产品的具体性能指标有哪些不同。说起EF 24-70mm镜头,其继承于1993年推出的EF 28-70mm f/2.8L USM,而继续追溯更早的产品,便是1989年推出的EF 28-80mm f/2.8-4L镜头。可以看出,佳能在标准变焦镜头的发展过程中一直在进行不断的改进,经过多年的技术实践与用户体验反馈,最终形成了目前的经典焦段——24-70mm。
EF 24-70mm f / 2.8L USM is a lens loved by photographers. It was released in 2002 and has been in service for 10 years until 2012. Canon released a new lens in February 2012 A generation of 24-70mm red circle standard zoom lens - EF 24-70mm f / 2.8L ⅡUSM, can be described as “ten years grinding sword ”. After the introduction of the EF 24-70mm f / 2.8L IIUSM (hereinafter “New 24-70”), Roger Cicala compared it to the EF 24-70mm f / 2.8 USM (hereinafter “Old 24-70” ) Were dismantled contrast. Before exploring the internal structure of the Canon 24-70mm standard zoom lens for two generations, let’s take a look at the specific performance indicators of the two generations of products. Speaking of the EF 24-70mm lens, which inherits the EF 28-70mm f / 2.8L USM introduced in 1993, the older product is the EF 28-80mm f / 2.8-4L, introduced in 1989. As can be seen, Canon has been constantly improving in the development of standard zoom lens, after many years of technical practice and user experience feedback, and ultimately the formation of the current classic focal length - 24-70mm.