9 Tips to Help you get Sharp Focus at Night: "Autofocus is so good on modern cameras that most photographers use it all the time. It seemingly never lets you down. But, let’s say it’s nighttime and you are going to do some shooting. You find a good spot. You set up your tripod. You go to focus your camera using the autofocus. You can feel the camera’s focus ring twisting back and forth, trying to focus. But it never gets there. The camera keeps hunting for a focus spot but never finds one."
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