If you use stacks in landscape photography, do you need long exposure when shooting?

The tripod is supported by the racket, and then the stack is used to simulate the slow door effect.

Advantages and disadvantages of stack:

First, advantages

1. It can be exposed for a long time without reducing the mirror. That is, it saves the cost of buying a reducing mirror and the trouble of using it.

2. It can stack many images together to get a picture that can't be shot by one exposure.

3. By calculating the average value, high-quality image quality can be obtained.

4. In the case of long exposure shooting night scenes, an accidental mistake (such as turning on headlights or flashlights by mistake) will make the shooting work wasted. No, just throw away one or two photos.

Second, shortcomings.

1. Post-stack processing with PS requires high computer performance. Low-end computers may fail to stack or take a long time.

2. When shooting the water surface, the effect obtained is far less stable than that obtained by shooting with a reducing mirror.