Get The Most Out Of Your Camera. (Part 2).
Lets add motion to our images.
In part 1 of: Get the most out of your camera, we looked at how
to use the aperture and the creative uses of depth-of-field. In
this part we'll look at how to use the shutter button on your
camera and how both the shutter and the aperture control
exposure.
The shutter is a mechanical device that controls the length of
time that light is allowed to act on the film. Most standard
cameras allow us to use a range between 16 second and 1/1000
second. You might be wondering, why anyone would use a long
shutter time of 16 seconds: I've used this and even longer
shutter times when taken lowlight landscape images. I would
always advise the use of a tripod with these long exposures time
to avoid blur images.
Using a shutter speed of 1/125 second should safely avoid
overall blur due to camera movement if you hold the camera by
hand. Any longer shutter time should require a tripod.
Each time you open the shutter by one, we double the light, when
we close down the light by one we half the light. Open the
shutter at 1 second allows twice the light as that of a