Abstract: A continuous golf club set comprising plural clubs set in the order of club number from a longer driving distance is disclosed. In this set, the club length and the sole width are decreased and the loft and lie are increased in the order of club number. The club length is decreased by 15-30 mm and the sole width decreased by 0-15 mm for each club. The loft is increased by 3.degree.-5.degree. and the lie by 0.degree.-2.degree. in club number order. The set comprises both irons and woods. At least one club of the set has its center of gravity located along a line perpendicular to the club striking face thereof at an inward distance of at least 15 mm therefrom. At least one club of the set has its center of gravity located along a line perpendicular to the club striking face thereof at an inward distance therefrom of between 10 mm and less than 15 mm.

Abstract: This high speed, instantaneous multi-image recorder comprises a video camera, sensor unit and light projector. A frame memory is connected to the video camera, a flashtube is to the light projector, a retarder is to the sensor unit. The flashtube is connected to the retarder, and a monitor is connected to the frame memory. The video camera, sensor unit and light projected are placed as directed toward a moving object which is, for example, a golf club. When the golfer swings the club, the sensor unit detects the club, the light projector flashes, and the video camera picks up the golf ball and club head around the moment of impacting. Thus, the video camera catches many instantaneous poses within a frame. Many such images picked up in a signal frame of the video camera are displayed on the monitor screen for analysis.