For the first time, the "BR lens" developed by Canon has been adopted for the first time, greatly reducing the color bleeding (chromatic aberration) that is likely to occur in large -diameter lenses, achieving excellent depiction performance from the center of the shooting screen to the surrounding area. ● You can shoot handheld in scenes with a low amount of light and draw with beautiful and big blur.In addition, it is a wide -angle L lens that can enjoy the unique charm of the large -diameter F1.4, such as the bright and easy to see the viewfinder. ● In addition to new technologies, various aberration is thoroughly removed by adopting grinding aspherical lenses and UD lenses, and you can fully enjoy the sharp and high -quality image quality of the single focus lens.I can.- angle of view (horizontal, vertical, diagonal) 54 °, 38 °, 63 ° lens configuration 14 pieces Number of squeezed feathers 9 sheets minimum aperture 22 The shortest shooting distance 0.28m Maximum shooting magnification 0.21 times Filter diameter 72mm Maximum diameter x length φ80.4mm x 105.5mm Mass about 760g