How to set a fine lighting in taking pictures?

Once fisheye mode is enabled, the flash is disabled. So environmental lighting is important in panorama photography. Exactly what kind of lighting is best will depend on the nature of the object you are shooting. Therefore, you may need to change the nature of your lighting when shooting in different scenes.
In most cases, soft, even lighting will enable you to create consistent, high-quality results. The time of day you shoot is important. I choose the middle of the day when possible. The sun is overhead so there is plenty of light and it is not shining at a low angle through the windows. Please refer to "Lighting" of the Panoweaver online user manual for more details.