Canon EF 200-400mm f/4L IS USM Extender 1.4x ReviewBy Dvir Barkay 6 CommentsLast Updated On February 15, 2021«1. Overview and Specifications2. Optical Features3. Summary4. More Image Samples5. Reader Comments»Canon EF 200-400mm f/4L IS USM Extender 1.4x Image SamplesCanon EOS-1D X + Canon 200-400mm f/4L IS with 1.4x TC + EXT TC, ISO 12800, f/8, 1/1600 secCanon EOS-1D X + Canon 200-400mm f/4L IS with 1.4x TC, ISO 800, f/6.3, 1/1000 secCanon EOS-1D X + Canon 200-400mm f/4L IS with 1.4x TC, ISO 3200, f/6.3, 1/800 secCanon EOS-1D X + Canon 200-400mm f/4L IS with 1.4x TC @ 560mm, ISO 640, f/6.3, 1/1600 secCanon EOS-1D X + Canon 200-400mm f/4L IS with 1.4x TC @ 560mm, ISO 2500, 1/800, f/5.6Canon EOS-1D X + Canon 200-400mm f/4L IS with 1.4x TC @ 560mm, ISO 1250, 1/1250, f/5.6Table of ContentsOverview and SpecificationsOptical FeaturesSummaryMore Image SamplesReader Comments