・ Equipped with electronic contacts, the lens usage status is reflected in the EXIF information of the shooting data.In addition, since the distance encoder is built in, it supports the 5 -axis blur correction on the camera body side.It is also possible to enlarge the viewfinder by the focus ring operation.- Focal Distance 50mm caliber ratio 1 to 2 minimum aperture F16 lens configuration 10 pieces (open F2, F2.8 circular aperture) angle of view 46.5 ° Number of squeezed feathers 12 sheets The shortest shooting distance 0.45m Maximum shooting magnification 1 -vs 6.46 Maximum diameter x total length φ62.6 x 61.3mm Filter size φ49mm Weight 364g Lens food attached electronic contact Yes Focus enlargement function Response EXIF information Response Lens correction selection possible 5 -axis body hand blur Compatible (limited to 5 -axis compatible body) Others with aperture replacement mechanism