变焦镜头的研制成功，曾被国内外许多知名摄影媒体列入２０世纪摄影工业十大成就或重大成果之列。变焦镜头的出现不仅增加了摄影灵活性，达到了“一头多用”，而且还能完成以往定焦镜头无法完成的诸如快速场景切换、“爆炸效果”的拍摄等等，丰富了摄影镜头的语言。而大变焦比 The success of the development of the zoom lens has been included in many well-known domestic and foreign media photography in the 20th century photography industry’s top ten achievements or major achievements of the column. The emergence of the zoom lens not only increased the flexibility of photography, to achieve a “one-size-fits-all”, but also to complete the past fixed focus lens can not be completed, such as rapid scene switching, “explosion effect” shooting, etc., enrich the language of the camera. And big zoom ratio