How to expose for a long time with iPhone?

First, the iPhone system should be upgraded to IOS 1 1 or higher.

1. Set the focal length for the subject, and set the manual focal length by touching the screen in the iPhone camera application.

2. Make sure the shooting light is sufficient.

3. Avoid shaking hands, make sure to hold the iPhone tightly with both hands, and have solid objects to support your hands. When there is no external support, you can also try to put your arms on your knees or your elbows on your waist.

4. Use a stable tripod. Without any equipment support, using a high-quality tripod is the best way to avoid any movement (and blur) in the photo.

5. Take photos with headphones. A little-known photography trick of iPhone is to use the volume button on the earphone as the remote shutter switch. If you press the volume up button on the headphone cable, the iPhone will take photos. This technique of reducing camera motion (holding and using a tripod) is very good because you can take pictures without touching the iPhone.

6. Avoid moving objects. In addition to trying to keep the iPhone from shaking, it is equally important to keep the subject still, especially when the light is insufficient. ?

Extended data

Long exposure is an exposure mode with slow shutter (long exposure time). The advantage is that you can shoot dim scenery more clearly, and you can also shoot fantastic pictures, such as waterfalls and city roads at night. Long exposure photography needs to use a long shutter speed to capture the image blur of fixed elements, while moving or blurring ugly elements.

Application case

1. Night photography, long exposure photography, usually used for night photography to produce a picture different from the time of day. By extending the shutter opening time of the camera, you can absorb more light and create a clearer picture. Generally, it is fixed with a tripod to avoid blurring. And enlarge the aperture to avoid long-term underexposure, resulting in dark photos.

2. Long exposure photography. With this technology, the scene will remain quite dark, and the photographer or assistant will take a light source-a small flashlight-and move it to draw a picture. The light source can be turned off between different strokes. Objects in the scene that don't usually move will be depicted by briefly turning on studio lights, one or more flash lights or gradually expanding apertures.

3. Long-exposure photography Waterscape photography, long-exposure photography, can atomize the moving water and keep the clear sense of the static object, thus showing the dynamics of the water flow.