MC-30 Timer Remote Control Shutter Release for Nikon D200 D300 D700 Nikon D100 Nikon D1 / D1h / D1x Nikon F6 Nikon F5 Nikon F100 Nikon F90 / F90x Nikon N90 / N90x Full functions supported as the camera shutter switch (with halfway or complete pressing) Design for group, macro, long exposures, continuous, motion shooting, etc timer delay: 0s to 99hrs 59min 59s in one-second increments Exposure time: 0s to 99hrs 59min 59s in one-second increments;Exposure count: 1 to 99. Interval: 0s to 99hrs 59min 59s in one-second increments