Chris thanks o much for proving this valuable tool! Unfortunately, your 4 favourite situations are not covered by mine. Has anyone “discovered” (accidently or through much experimentation) what they deem to be an “optimal” low light configuration? I am an amateur wildlife shooter and as a result I end up on the end of day light spectrum and would appreciate what others have found to "work" for them. Thanks in advance for any replies. (in order to not affect this thread, a private email would be greatly appreciated.