Why go digital?
There are many reasons why you should go digital. The main reasons
are image quality and convenience. Digital cameras are very flexible
and usually easy to use and they can capture excellent quality
images. With care you can obtain excellent prints using your own
colour printer. It is also easy to make web pages of your images
to share with other people. Most importantly of all, you can view
the quality of the image you have captured and check the accuracy
of your framing and your exposure. More convenient, more immediate,
However, there are several issues that should be considered when
you are choosing and using your camera.
Choosing a digital camera
Optical zoom: These days most quality digital
cameras have an optical zoom and a flash built-in. Most are small,
flexible, portable and convenient and easy to use. When looking
at which camera model to shoose you will often find similar models
but one will have an optical zoom and another will only have a
digital zoom. However, using a good optical zoom gives you much
more flexibility when capturing an image, so it is worth spending
the extra money to buy a camera with an optical zoom that will
be much more useful in a wider range of situations.
Shutter lag: For some cameras there is a lag
time between pressing the button and the image being captured.
This can be very annoying as the important moment can pass in
the small amount of time between pressing the button and the camera
taking the image. The more expensive cameras tend to have a minimal
lag time. Get to know your camera well so you can use it effectively.
Image Quality: Once you have chosen a camera,
there are several other factors that impact on the quality of
the images you can obtain. The most important most important of
these is related to the number of pixels that the camera can capture.
The second factor is the amount of compression used when saving
the image file in the camera and the third most important factor
is the quality of the lens on the camera.
Camera shake There are other factors, such as
the ability of the photographer to hold the camera still at slower
shutter speeds, but the impact of this factor depends on the skill
of the photographer and can be overcome by choosing a more appropriate
shutter speed or to use a tripod.
Image stabilisation:. If you are going to hand
hold your camera in low light situations, then look for one that
has image stabilisation built in. The camera will have some mechanism
built in to cancel small movements of the camera so that the images
produces are sharpe. Some brands have image stabilisation built
into the body of the camera, while others have stabilisation built
into the lens. It seems to me that the best option is to have
image stabilisation built into the body of the camera, and this
will work even if you change the lens. However, if you buy a camera
that uses lenses with the stabilisation built into them, then
the lenses will be much more expensive than those without image
stabilisation built in.
Print size: An image from a 3 Megapixel camera
will print up very well as a high quality 4” x 6”
photograph. If you really want to print a larger image, it may
still be good quality at twice that size. If you make a print
that is too large, the image will look pixelated and "blocky".