There are many situations in the world of
photography where you will have to decide how you
want to capture a moving subject. Whether it is an
athlete running down the field or a bird swooping
over the water there are many different photo
outcomes possible. You could end up with everything
in the scene perfectly displayed without any blur or
you could end up with the subject in focus while the
background is blurred from panning. In this article
we will discuss the different techniques you could
use in order to end up with different results.
Freezing
the Motion
If you would like to freeze the motion of the
subject along with the motion of the background, you
should use a very high shutter speed. I would use a
shutter speed of at least 1/300th of a second in
order to make sure that you freeze everything. But
there are other subjects you might find that will be
moving unusually fast such as cars or thrown
objects. If you would like to freeze a faster moving
object you will probably need to use a shutter speed
closer to 1/1000th of a second or faster. This
shouldn't be a problem now because the new cameras
are coming out with shutter speeds of up to 1/8000th
of a second.
Motion Blur of the Whole Scene
If you are trying to blur everything in the photo to
convey how fast everything is moving to the viewer,
then you should try a slower shutter speed. Anything
below 1/100th of a second should do the trick. I
have used this for more artistic photos of passing
motorcycles or cars as well as running animals. This
technique is best used when the scene you are taking
a photo of is full of bright colors. In this type of
photo the subject is blurred so it is not often
used, people aren't used to seeing this kind of
work. And because people aren't used to this kind of
work, I have seen many excellent photos like this
sell for a lot of money. This type of photo also
works very well with patterns in nature. Such as
colorful trees waving in the breeze or flowing water
with colorful reflections. This combination of blur
with a lot of color can create a photo that looks
more like a painting.
Panning
- Motion blur of just the background while the
subject is clear
This is a more difficult technique that requires a
lot of practice and skill. In this type of exposure
the photographer uses a somewhat slower shutter
speed and moves the camera at the same rate as the
moving subject. When done correctly, the subject is
clearly in focus without blur while the background
is blurred; giving the viewer the appearance of
rapid motion. This is the most common method used by
nature photographers and sports photographers when
they want to show their subjects moving across a
scene rapidly. Some of my favorite photos that I
have taken involved using this technique with
speeding dirt bikers and soaring birds with trees
and flowers blurred in the background.
Many photographers work very hard to master the
skill of panning. I myself have practiced following
the movement of sports players with a slower shutter
speed to try to follow the movement of their faces.
Occasionally I would get it right and have their
face clearly exposed while some of their limbs and
the background blurred behind them from the slow
shutter speed. These are most commonly the kinds of
photos that win awards in a sports photography
contest.
Motion
Blur of Just the Subject (Tripod is a Must)
If you would like to have a clear scene while your
subject blurs past with speed, you will have to
figure out a way to keep the camera steady enough to
capture the background clearly while your shutter
stays open an extended amount of time. This method
can obtain some amazing photos and is commonly used
at night with cars and headlights. I'm sure you have
seen photos of a freeway at night with the
headlights of cars making lines through the
exposure. This definitely required some sort of
tripod and a very long shutter speed; a shutter
speed probably multiple seconds long.
When I use this method I usually set my camera up on
a tripod of some sort and simply set the self-timer
so I don't have to hold the shutter button down and
risk moving the camera. By setting the self-timer
the camera automatically takes the photo after
somewhere around 10 seconds so you don't have to
hold it. The best night photos I have taken involved
using this technique while some cars or trains sped
through the scene leaving their trail.