Hi, I've shot my speed graphic many times, but mostly off a tripod. Tonight I'm taking the camera to dinner, well, taking my family to dinner. The restaurant has an open air courtyard seating. I'd like to take a few 4x5 shots, it will be the last hour of daylight. My 100 speed film and lens is going to be about 1/60 or slower then.

What is the slowest you can hand hold a graphic and expect no motion blur? It's talked about a lot with little rangefinders, I usually try to stay faster than 1/60, but I have a steady hand and have shot much slower. What about for a speed graphic? I don't want to mess with flash, and I don't want to shoot wide open with a 9" lens, it will be too short depth of field. Will 1/10th to 1/60th be ok hand held, are am I going to blur the shots?