Continued from page 1
Most modern digital cameras come with a zoom lens that can take both wide angle and telephoto shots. This is extremely useful. However remember that when
camera is on its furthest telephoto setting, camera shake will become a problem. If you are taking a telephoto shot and
camera chooses a slow to medium shutter speed,
result might be blurred due to
movement of your hands while taking
exposure. Use a tripod - all wildlife photographers use them. They are a pain to carry but improve quality by orders of magnitude.
6 Fast Moving Subject Require a Fast Shutter Speed
The shutter is that part of
camera which opens briefly to allow light to strike
sensitive surface of
detector to produce an image. Fast moving object require extremely short shutter speeds in order to capture a crisp sharp image. Slower shutter speeds will produce a blur as
object moves. In general outdoor photography a shutter speed of 1/60th or 1/125th second will be acceptable. In contrast, shooting a formula one car in motion will require shutter speed of say 1/1000th of a second.
7 A little About Depth of Field
In days past, a photographer would measure
level of light at a location with a light meter and then calculate
best combination of shutter speed and aperture to correctly expose
film. This is now done automatically by
camera. Aperture is
measure of how much light is passing through
lens. The lens has an iris, which can be 'stopped down' to reduce
amount of light passing through
lens. A fully open lens will pass
greatest amount of light - full aperture - but this also reduces
'depth of field'. The depth of field is
band of distance over which
subject is in focus. In 1 above, with full aperture either your girl friend or
harbour is in focus - but not both. By 'stopping down'
lens - reducing
aperture - both can be brought into focus. But as a consequence
amount of light passing through
lens is reduced. The length of time which
shutter is open will have to be increased to compensate.
8 When taking Landscapes Avoid Putting
Horizon Across
Centre of
Image
Drawing
picture horizon in
middle of
image simply looks naff. It divides
picture in to two and fails to engage
viewer. Best to concentrate on
sky or
foreground. Photograph a setting sun with red sky, or a rainbow with
horizon low in
picture. Or concentrate on
landscape and place
horizon high in
picture.
9 Be Aware of
Effects of Back Lighting
Let us go back to
example given in Hint 1. Imagine that in
picture of your girl friend in front of
harbour,
sun is setting, casting its golden rays across
sea and reflecting on
masts and other metal objects of
harbour with white clouds illuminated red in
dying rays of
sun. An evocative and romantic shot. Taking
shot with
camera will result in a beautiful background but a black shadow of a girl friend! Now that might be appropriate should you have had a particularly bad day with her and it might correctly reflect
mood. However using
on camera flash to fill in
darkness - to illuminate her face and show her features might be more appropriate on a better day!
