Will Sony HX200 delay taking pictures? If so, how will it be adjusted?

The shutter speed of Sony DSC-HX200 is 30- 1/4000 seconds.

Even if it is placed in the shutter priority or M position, the slowest is only 30 seconds.

And there is no door b in m block.

It takes a long time to take photos of this kind of track.

This is far from enough.

B-door of SLR must be used (some low-end entry-level doors don't have B-door, and high-end doors have it).

"B-door" is a shutter release mode completely controlled by the photographer, and the length of shutter time is completely determined by the length of time the photographer presses the shutter, so it is also called "manual shutter". The original meaning of "B" in the dictionary is light bulb, which refers to a spherical pneumatic shutter operated by hand or flash.

"B-door" means that when the shutter is pressed, the camera starts to expose until the shutter is released. Under door B, the exposure time depends on the time you press the shutter. Generally, the shutter will automatically close at a set speed. Some early cameras also had "T-gate", which is another way to control the shutter speed freely, but it is rare in today's cameras. Different from "T-gate", "B-gate" always keeps pressing the shutter button and stops exposure when the shutter is released, while "T-gate" starts exposure when the shutter is pressed for the first time, continues exposure when the shutter is released, and stops exposure when the shutter is pressed for the second time.

Gate B is a photography mode that can be said to be beyond the four camera modes (A, S, M, P) and can also be regarded as an extension of M-file. In B-door mode, the photographer can adjust the aperture and completely control the shutter speed, which is very different from M-file. Generally speaking, the photographer can freely adjust the shutter speed within the range of m 1/8000 seconds to 30 seconds. On the other hand, when the photographer presses the shutter button, the door B will be opened, and when the shutter button is released, the door B will be closed.

"B-door" solves the problem of long exposure. Generally, the slowest shutter of a camera is about 16-30 seconds, which is more than enough for 99% of the shooting needs. And when you need to shoot some special scenes in the dark, this speed may not be slow enough. For example, shooting star tracks, fireworks, making the night look like a special technique during the day, and so on.

Set the camera to full manual mode, that is, M gear; Set the shutter to the lowest until the shutter value becomes a "light bulb", which means that the "B door" has been opened.

Fix the camera with a tripod. Then turn the camera to gate B. Some cameras have a separate B-door mode in the mode dial, and some cameras adjust the shutter speed to B-door after 30 seconds in M-file. Use a smaller aperture after turning to door B. At this time, it is best to use the cable release to operate the camera shutter, otherwise the shutter button will be pressed all the time. Even if you ignore the camera shake, your hands will be sore if you press it for a long time. Press the shutter button on the shutter line to lock the shutter. Then wait two or three minutes for a short time and half an hour for a long time to see the brightness of the ambient light. So it is necessary to take more photos. When you feel that the exposure is almost complete, you can unlock the shutter button and the exposure is complete.

When shooting, press the shutter and the camera will start to expose until the shutter button is released.

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