遨游世界 » Weather Sealed http://www.liujianfei.com/blog Wed, 08 Feb 2012 05:23:25 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Canon防尘防水滴的镜头 http://www.liujianfei.com/blog/archives/39 http://www.liujianfei.com/blog/archives/39#comments Tue, 31 Mar 2009 06:08:28 +0000 blackcat http://www.liujianfei.com/blog/?p=39 A number of Canon “L” series lenses are specially weather sealed, using ‘O’-rings and gaskets to keep out water and dust.

  • Canon EF 16-35mm f/2.8L II USM
  • Canon EF 17-40mm f/4L USM
  • Canon EF 24-70mm f/2.8L USM
  • Canon EF 24-105mm f/4L IS USM
  • Canon EF 28-300mm f/3.5-5.6L IS USM
  • Canon EF 70-200mm f/4L IS USM
  • Canon EF 70-200mm f/2.8L IS USM
  • Canon EF 14mm f/2.8L II USM
  • Canon EF 24mm f/1.4L II USM
  • Canon EF 50 f/1.2L USM
  • Canon EF 200 f/2L IS USM
  • Canon EF 300mm f/2.8L IS USM
  • Canon EF 400mm f/2.8L IS USM
  • Canon EF 400mm f/4DO IS USM
  • Canon EF 500mm f/4L IS USM
  • Canon EF 600mm f/4L IS USM
  • Canon EF 800mm f/5.6L IS USM
  • Canon Extender EF 1.4x II
  • Canon Extender EF 2x II

佳能在部分超远摄镜头及L型变焦镜头的镜头接口部位采用橡胶垫圈等防水滴防尘的高性能结构，在EF 300mm f/2.8L IS USM等超远摄系列以及L型的变焦镜头中，佳能采用了在镜头接口部位增加能堵塞与相机机身之间缝隙的橡胶垫圈的防水滴防尘结构；并在对焦环、焦点预设播放 环等可动部位也采取相应的防水滴防尘措施。此外，相机的操控面板以及背面的插装滤镜插槽的接口也使用了橡胶材料，提高了相机细节部分的防水滴防尘性能。对于EF 24-70mm f/2.8L USM等镜头，在变焦环以及焦距拉放部位也采用了防水滴防尘结构。

  • Canon EF 16-35mm f/2.8L II USM
  • Canon EF 17-40mm f/4L USM
  • Canon EF 24-70mm f/2.8L USM
  • Canon EF 24-105mm f/4L IS USM
  • Canon EF 28-300mm f/3.5-5.6L IS USM
  • Canon EF 70-200mm f/4L IS USM
  • Canon EF 70-200mm f/2.8L IS USM
  • Canon EF 14mm f/2.8L II USM
  • Canon EF 24mm f/1.4L II USM
  • Canon EF 50 f/1.2L USM
  • Canon EF 200 f/2L IS USM
  • Canon EF 300mm f/2.8L IS USM
  • Canon EF 400mm f/2.8L IS USM
  • Canon EF 400mm f/4DO IS USM
  • Canon EF 500mm f/4L IS USM
  • Canon EF 600mm f/4L IS USM
  • Canon EF 800mm f/5.6L IS USM
  • Canon Extender EF 1.4x II
  • Canon Extender EF 2x II

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