How does Nikon D3300 set the exposure of camera B door to 1 hour?

1, Nikon D3300 camera adopts the operation method of setting the exposure time of door B to 1 hour. A, firstly, rotate the shooting mode dial to the M (manual) position; B, rotate the instruction panel to select the shutter speed as the light bulb (door B); C, after focusing, fully press the shutter button to open the shutter; D, when the shutter is open, keep the shutter button pressed 1 hour; D, release the shutter button, and the shutter closes to end the exposure.

2. When using the B door for long exposure, the shutter button must be kept pressed, which will bring a lot of inconvenience to the photographer. Nikon D3300 camera also has T-door shooting function. Using T-door to complete long exposure will greatly reduce the workload of photographers and make shooting easier. Use the T-gate to set the exposure time to 1 hour. A. First, set the shooting mode dial to M (manual); B, rotate the command panel to select the shutter speed as time (T gate); C, after focusing, fully press the shutter button to open the shutter, and then release the shutter button; D, 1 hour later, press the shutter button again, and the shutter closes to end the exposure.

3. Although using T-gate operation for long exposure will reduce the operation intensity compared with using B-gate operation, both methods need manual timing to control the shutter closing, so the timing accuracy and operation complexity are still unsatisfactory. In recent years, with the continuous progress of technology, electronic release has been used more and more. This electronic cable releaser not only has the function of triggering the camera shutter, but also has the function of timing. Using camera B door and electronic wire release for long exposure can greatly improve the timing accuracy, reduce the photographer's operation intensity and complexity, fundamentally reduce the occurrence of misoperation and improve the shooting success rate. The specific operation is as follows: a, set the camera to B-door mode; B, setting the required exposure time on the electronic shutter line; C. Press the shutter button on the electronic shutter line to control the camera to open the shutter at the same time for exposure and timing; D. When the exposure time is set, the release of the electron beam will automatically control the camera to close the shutter and end the exposure.