Originally Posted by Huck

And let me ask you guys a question. During night shots, if I'm looking through the viewfinder, the camera has no problem focusing. But after it focuses it won't shoot, and it blinks the flash symbol at me. Then without moving or anything, I'll switch to live view and it has a lot of trouble focusing. Once I get it focused (or almost, as you can see in the first pic above) it will take the pic no problems, no flash. What I resorted to doing was looking through the viewfinder, focusing, then turning off the auto focus and switching to live view to take the pics. It was kind of a pain. What am I doing wrong? For reference, I'm shooting with a D5100, stock lens, and the settings were 100 ISO, 5.6 aperture, shutter speeds between 15 and 25 seconds depending on the shot, and an auto white balance. Suggestions?