Does anyone know a source for very small fast acting actuators? I'm talking about something that's maybe 6mm square maximum. It doesn't need a whole lot of strength but I want it to be able to react quickly (1/60 of a second would be nice). What I want to do is open the blades of a photographic leaf shutter. The leaf shutter can close itself but it needs a "push" or "pull" to open it.
Probably not cheap, though!
How about using a bigger solenoid to push a camera cable release? That would give you a small actuator, with a decent amount of force at low cost.