If there is no polarizer to shoot sunrise and sunset in photography, can PS with different exposure parameters be synthesized to compensate?

There should be something wrong with your description The previous teacher also said that what you said should be a gradual change mirror, but I generally understand what you mean anyway.

When shooting sunrise and sunset, the biggest problem is the light ratio, which is easy to lose sight of one thing and lose sight of another. I often use this method you mentioned, so I will talk about my shooting and later stage in general and give you a * * * encouragement.

In fact, the whole process is very simple

When shooting, shoot the sky and the foreground separately.

Take a photo with the sky as the standard, no matter how "black" the rocks in the foreground are!

Take a photo with the foreground reef as the background, no matter how bright the sky is! In fact, the difference between the sky and the prospect is more than ten files!

Open two photos with PS (preferably in RAW format), and preprocess the two photos respectively, including the brightness, texture and sunset atmosphere of the foreground reef.

After processing two photos, drag one photo onto the other, so that there are two layers in a file (see the red circle above).

Select the upper layer (at the arrow), and then click Quick Mask (at the circle) on the Layers panel.

Select the gradient tool in the toolbar ... and stop at the bottom of the screen (if it is reversed, pull it up from the bottom)!

Normal exposure of the sky and the sea at the same time!

Done, as simple as that!

Please pay attention and leave a message if you have any questions.

I am the south of the south, welcome to pay attention.