Case Lcd Nikon

Case Lcd Nikon
How to help a tripod when a Nikon D5000 LCD screen says "subject too dark?

Besides increasing the ISO, How to help a tripod in such a case? Thanks!

I am assuming that there is sufficient light for the autofocus to get the lock. The only way to avoid this is the focus manually (if you can see well enough). Then the camera will select a shutter speed slow speed when a tripod will necessary to hold the camera, although the issue can still move.

Nikon D3 DSLR