Ef200-400mm f4l is usm 327512-Ef 200-400mm f/4l is usm extender
Designed to satisfy the discriminating needs of sports and wildlife photographers, the EF 0400mm f/4L IS USM Extender 14X is a highperformance super telephoto zoom lens with an optically matched builtin 14x extender for maximum versatility With a simple flick of a switch, the zoom range can be quickly increased to mm (f/56)What is the difference between Canon EF 0400mm F/4L IS USM Extender 14X and Canon EF 600mm f/4L IS III USM?The Canon EF 0400mm f/4L IS USM Ext 14x Lens has inherited the builtin 14x extender concept from the rare Canon FD 10mm f/56L Lens (see picture on PBasecom) The 0400 L is the first "EF" lens to receive a builtin, switch on/off extender Canon Ef 0 400mm F4l Is Usm Extender 1 4x Lens For Sale Online Ebay Ef 200-400mm f/4l is usm extender