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Join Date: Nov 2005
Location: NW Ohio
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Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 2011 Jamis Quest, 1980 Peugeot TH8 Tandem, 1992 Performance Parabola, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-S LTD, 197? FW Evans
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It seems like the 9/16-20 pedal thread has been around about as long as the 1/4"-20 thread for camera tripods. You can mount a 100 year old camera on a modern tripod or a new camera on an old tripod. There were some bigger cameras that had a 3/8" mount, but they came with a bushing to adapt to the standard 1/4" screw.