capture scenes. However, there are still a few techniques that can be used to increase the
quality of your images. What is important is that when you see a scene, and you want to
photograph it, you must have the ability to know what technique works for that scene.
Basically it is applying the correct technique to the correct scene to get the best result.
Flash
Probably the most misunderstood of features on a camera, the flash is there to light up a
scene when the camera deems a situation too dark for it to take a decent picture.
There are a few types of flash: Normal, Fill in Flash, Red eye reduction and Rear curtain sync
flash.
Normal flash
This is the everyday flash that occurs when you pop you flash up. It is designed to illuminate
the entire scene that it sees. This means that anything that is in front of the scene will be over
exposed, as it will receive too much light. This is often the case with portraits of people as
they are too close to the camera and in front of everything else. The way to prevent this is to
have the flash dialled down a bit so that the flash is only powerful for short range. This will
give a better overall effect. It also helps the recycling time of the flash, as it does not use as
much power as normal flash- so it allows you take images faster and it saves your batteries.
Red eye reduction
The closer the flash is to the lens of the camera, the more chance of Red eye being prevalent.
Red eye is caused by the reflection of the flash into the lens.
How to reduce red eye:
• Have a hot shoe flash and bounce flash off ceiling or hold flash away from the camera
and direct it onto subject. Of course this is not always possible.
• Red eye reduction mode on camera. Camera pre fires flash so that subject’s pupils
dilate and then the camera takes an image with flash.
• Subject looks into bright light before taking picture- effect is same as red eye
reduction.
• Post processing- this is done on the computer.
Fill Flash
Fill flash is a small amount of flash that the camera emits to help the image. It is one of the
most useful ways to improve your daytime images. It is best used in shadows, under trees and
in harsh day lighting. What is important is to realise that fill flash is there to fill in shadows
only. This means that it is a subtle effect and if a viewer cant see that flash was used, then the
effect is successful. I am a firm believer in Fill flash. It turns horrid daytime photos into
acceptable images that you can use for family albums. Must also remember that many
weddings are taken in full daylight, so this is where fill flash saves the day for those
photographers. Probably its most creative benefit is that of when used when shooting against
the sun. The fill flash fills in the detail of what would normally be a silhouette. This gives an
image a lot more substance and evens out the contrast in an image.
Rear curtain sync
This is the most creative flash effect and it produces ethereal and mystical effects. What
happens is the shutter opens for the exposure and the Flash only fires at the end of the
exposure. If used with a slow shutter speed, can create beautiful effects and blur is created by
the slow SS, but the flash freezes the subject when it fires.
Best results are had when used with a support- being a tripod, beanbag or by resting against a
pole or wall.
Filters
Filters are pieces of glass that fit onto the front of a lens, either by screwing on or via a drop
in system. There are many types of filters and they provide many types of effects, many of
them not natural in look. I will concentrate on two types of filters that re very useful and help
in producing better and more balanced images.
Polarising filter
This is a circular filter that screws onto your lens. The front section of the polariser turns,
increasing and decreasing in strength of polarisation as it turns. It gives the best results are
when used at 90 Deg to the sun. The polarizer is best used in mid day light conditions, forests
and over water.
What it does:
Daylight: Adds contrast and saturates colours
Forests: It reduces the leaf shine (glare) on wet leaves- makes for a much better
resultant image
Water: Reduces glare over water- excellent for “seeing” into the water.
The graduated Neutral density filter
Used mainly traditionally for landscapes, but it use is not confined to scenery. I find this one
of my best travel lenses. The filter is one half clear glass and the other half a dull grey colour.
What it does is balance the exposure of the sky with that of the land. This balances the
exposure so that the entire scene is made equal and you dint get an image of a dark
foreground and a bright sky.
Panning
This technique is used for capturing various forms of motion. It means that you follow your
subject, as it is moving. It is important to try and keep your movement as smooth as possible
with the moving subject. There are various ways types of effect that you can get from
panning, depending o your shutter speed.
Most common:
Pan with subject to get your subject sharp and background a nice blur. This type of shot is
good to start around 1/250 sec.
It is sometimes nice to make your subject a blur. This equates into a very abstract effect and
uses a much lower shutter speed. Anything from 1/10 sec will give you a blur of movement.
It must be remembered that this is a difficult technique and the success rate can be quite low.
Luckily you have a digital camera and you can practice and adjust our settings to get the
desired result.
No comments:
Post a Comment