Problem with light in screenshot

[Amethyst456]

Hello. First, sorry for my bad English.

 

I have a problem with the light. When I set fullscreen and take screenshot by F12 (as Steam default), the light in screenshots is normal. But if I set game to window mod or take screenshot/ video by 3rd party soft like Bandicam, Shadowplay, the picture and video become darker (pls see the picture below).

 

I think the problem isn't about the soft. Because I use many different soft and it is the same.  

Any solution, please?

[Lodakai]

http://wiki.step-project.com/Guide:Mod_Testing#In_Game_Testing_Procedures

 

This is normal.