Photography Addiction: Flash

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.
Uh-oh. What are you going to do now?

Actually, this problem doesn’t arise only at night. Your camera will typically have trouble focusing in any really dark scene. So here are some tips for dealing with that situation and focusing your camera when it is dark

1. Aim for the bright spot
Sometimes you can still use your autofocus. Even though it is dark, most night scenes will have a bright spot or two. They might be streetlights, or a lit-up building, or even the moon. That bright spot can be used to set your autofocus.

One camera function that can be a lot of fun to play with (and that can get you some interesting results) is slow sync flash.

Low Light Photography Options

When shooting with a subject in low light situations you generally have two options; either to shoot with a flash or to shoot with a slow shutter speed.

1. Flash – When shooting in low light with a flash in auto mode your camera will choose a relatively fast shutter speed. This means that your subject will be well lit and that if it is moving it will be frozen and as a result will be sharp. The problem with this is that it can also leave your subject lit up too brightly and can leave it’s background looking very dark as there is not enough time for the camera to collect any ambient light.

2. Slow Shutter Speed – The other option is to turn your flash off and shoot with a longer shutter speed in order to collect enough available light from the image to get a well exposed shot. This can be an effective technique if you’re shooting landscape or environmental shots where everything is nice and still – however if you’re shooting a moving subject it means you’ll get motion blur which could ruin your shot.

Both of the above options are legitimate technique but both have their weaknesses. Another options to consider is slow sync flash.