Four glass molds aspherical lenses are effectively placed, reducing peripheral light drops and clearly described.In addition, an ASC that suppresses flare ghost is adopted.Compatible with various usage status by hand blurring correction of about 4 steps of shutter speed conversion and fluorine coating that is resistant to dirt.Video affinity due to USM low -speed driving has also been improved. * Focal distance 105mm, EOS-1DX used CIPA guidelines compliant- angle of view (horizontal, vertical, diagonal) 74 ° ~ 19 ° 20 '・ 53 ° ~ 13 ° · 84 ° 20' lens configuration 17 groups Number of squeezed feathers 10 sheets minimum aperture 22 The shortest shooting distance 0.45m Maximum shooting magnification 0.24 times (105mm) Filter diameter 77mm Maximum diameter x length φ83.5mm x 118mm Mass about 795g Vegetable correction effect about 4 steps * (CIPA guidelines compliant)