My SLR is Nikon D90. Why is the photo taken after shooting in a special studio with a flash still ineffective?

The problem of color is probably considered from several aspects:

1. Is the color temperature of your camera, that is, the white balance, set correctly? Did you hit another incorrect non-automatic gear?

2. If automatic white balance or correct manual dynamic balance is set, it depends on whether the flash is synchronized. You can turn on the flashing light and see if the effect is the same. I feel as if it is more likely to be out of sync.

3. If the flash works, it depends on the color temperature of your lamp and whether it is consistent with the white balance setting of your camera.

4. If there are no problems mentioned above, are there any other strong lights when shooting? In this way, your light is not pure, and the light of various color temperatures is mixed together, and the camera doesn't know which light to use to determine the color, and something goes wrong. At this time, you can block other lights and try to make the flashing light Yi Deng. This possibility is also relatively large. When taking wedding photos, the color is difficult to handle, which is the reason for the mixed light.