It is almost impossible to get motion blur with electronic shutter as it reads the image line by line and when you move with the camera the image is the deformed. Generally it works like: set time to 1/125s set ISO and F to correct values focus on the moving object (manually!) follow the object in the viewfinder (screen) when you follow the object press trigger - do not stop moving! Then the moving object shooud be sharp and backgroud shoul be blueer by the motion.
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