How to cancel the camera delay of Nikon SLR camera D90?

Nikon D90 camera and time-lapse photography in B-door shooting mode. It can be up to 30 minutes, and there is no time limit for remake interval.

1. Prepare the camera and fix it on a tripod, or place it on a stable horizontal surface. After a long exposure, closing the viewfinder eyepiece shutter can prevent light from entering the viewfinder and affecting taking pictures (closing the viewfinder eyepiece shutter). Nikon recommends that you use a fully charged battery or a separately purchased power adapter and camera power connector to prevent power failure when the shutter is opened. Please note that noise (bright spots, bright pixels at irregular intervals or blurred images) may appear in the long exposure mode. Selecting Long Exposure Noise Reduction in the photo shooting menu as ON can reduce bright spots and fog images.

2. Select the exposure mode M .. Press the mode button and rotate the main command panel at the same time until M is displayed on the control panel.

3. Select the shutter speed. When exposure metering is turned on, rotate the main command dial to select the shutter speed B door (light bulb) or remote control B door. When door B (light bulb) or door B (-) is selected, the exposure indication is not displayed.

4. Open the shutter → close the shutter. Door B: After focusing, press the cable release button on the camera, another remote control cable or wireless remote control. Please press and hold the shutter button until the exposure is complete, and then release the shutter. Remote control door B: Press the shutter release button completely. B door: release the shutter button.