Subject: "The
Perfect Digital Camera" Revisited
It has been a busy couple of weeks here at ELM,
what with updating our T4 TimeSaver among other
work, so this month's ELM Bulletin refreshes
information presented in the March 31, 2005
issue "Selecting the
Perfect Digital Camera." I hope you enjoy it
for the first time all over again.
Most digital camera manufacturers
and sales outlets primarily
compare digital cameras based on their
mega-pixel count and their zoom capability implying
that higher mega-pixel and zoom numbers
indicate a superior camera. While these are
valid comparisons what should
not be overlooked is how well
does the camera enable you to take the pictures
you like.
Here is a simple list of criteria
that I
have found useful in selecting my
own digital cameras:
1/ Resolution
- Is the resolution of the camera adequate
for your needs? Most
current digital cameras
produce excellent
5 x 7 and very
fine 8 x 10 (or
larger) prints.
Lower mega-pixel numbers have minimal impact
on image quality but do reduce the level to
which an image can be cropped and still
produce acceptable results. An 8
mega-pixel camera
can create images of similar quality to 35mm
prints yet offers
a
greater ability to crop an image to a
desired layout and retain enough data
to produce acceptable images of any
reasonable size.
2/ Zoom -
Most digital cameras have zoom lenses of
modest capability which allow you to get 2
to 4 times closer to your subject without
actually moving (a feature excellent for
landscape and portrait photography). Some
cameras have high powered zoom lenses that
enable you to get 10 to 18
times closer to your subject and reducing
the need to crop the image after the
fact. Almost all digital cameras offer a
combination of optical and digital zoom.
Optical zoom functions the same way as a
pair of binoculars in that the image is
magnified by the
camera lens with
no loss of quality. Digital zoom enlarges
the central portion of the captured
image and
can reduce image quality.
3/ Flash -
Almost all digital
cameras are equipped with a
flash. If most of your photographs
will be taken outdoors the flash need not
be as powerful as it would if most of
your photographs are taken indoors. Flash
power is generally rated by range in feet
and/or metres but it is
a good idea to test the flash before
purchasing the camera as these ratings can
vary between manufacturers. (Many camera
stores allow the buyer to return a camera
within a reasonable amount of time if it
proves unsatisfactory.) Also ensure that the
flash provides even lighting throughout the
picture and a consistent amount of lighting
for each picture taken.
4/ Noise -
Noise is the digital camera equivalent to
grain in a film camera and is dependant on
the quality of the image sensor built into
the camera. Noise is most commonly seen in darker
regions and flat areas (areas of
little change in the amount of detail) and
is more prevalent at higher ISO settings
(most digital cameras can approximate a
variety of ISO settings similar to those
available in popular film formats). Noise
can often be more noticeable on cameras with
higher mega-pixel ratings due to the smaller
sensors being used. Many cameras offer
internal noise reduction and while useful
this does increase the shot to shot time
when it is used.
Many current Digital Single Lens Reflex
(dSLR) cameras show very little evident
noise even at the high ISO settings of 1600
or 3200. This enables you to use available
light rather than your camera's flash and
reduces your "noticability."
5/ Speed - A
digital camera is essentially a computer
built for the single purpose of acquiring
and processing images. Like a computer its
ability to perform its task in an efficient
manner is dependant on the hardware and
software built into it. Most cameras have a
very acceptable shot to shot time of under a
second or two. If
you primarily photograph static subjects
such as landscapes or buildings the
shot-to-shot time of a camera will not be as
critical.
6/ Batteries
- Cameras generally accept either the
manufacturer's proprietary built in
rechargeable battery or standard AA or AAA
batteries. While proprietary batteries
generally allow a camera to operate for a
longer time before recharging they cannot be
easily replaced. Standard cells are
available almost everywhere and can be
replaced very easily but may not take as
many pictures as you would like.
Rechargeable batteries can also be used in
most digital cameras allowing you to keep a
fully charged set of batteries on hand at
all times.
7/ Ease of Use
- Many factors will determine whether a
given camera is easy or difficult to use. If
you have large hands you might find a larger
camera more useful than someone whose hands
are smaller. Likewise, if you wear
eyeglasses, you might prefer a camera that
provides dioptre adjustment to the
viewfinder so that you can take your glasses
off and see more of the image as you compose
it. (Glasses
wearers might also prefer cameras with
greater eye-relief, where you can wear your
glasses and still use the viewfinder like
normal.) Others might wish only to
use the camera's LCD screen to compose and
review their images. If at all possible try
the camera out under situations close to
your anticipated use before you purchase it
so that you will be less likely to be
surprised by its capability when confronted
by that once in a lifetime opportunity.
At the beginning of this email we
have said that we would help you to "Select the
'Perfect' Digital Camera." Ultimately the
"Perfect" digital camera is the one that works
when you need it to in the way that you expect
it to and gives you the results that you desire.
The perfect camera for you may not be the
perfect camera for someone else. If all you do
is take quick snapshots of the family your
"Perfect" digital camera will not be the same
camera as the person who wants to reproduce in
detail the scenery they saw on their last
vacation. Our final hint is this:
8/ Take Your Time
- Even now a digital camera remains a
significant investment
and there is an amazing level of choice. Go
to a camera store and get a feel for what's
available. Talk to friends who use cameras a
lot. Take your time, study the
market and make your own choice. Enjoy
using the camera. This will be your
camera and if it
enables you to take the pictures that you
want to take then it is your
"Perfect" camera.
Below are links to some useful
websites that will help you both select a
digital camera and get the best results from it,
I used both of these extensively in purchasing
my cameras:
Digital Camera
Resource Page ~ A good source of
camera reviews and sample images on a wide
range of digital cameras ~
http://www.dcresource.com/
Steve's
Digicams ~ A good source of
camera reviews and sample images on a wide
range of digital cameras ~
http://www.steves-digicams.com/
Of course buying a digital camera is simply the
first step in a long and enjoyable time of
taking photos. Here are several websites that
display photographs by others and which I have
used to expand my own personal style:
Photo of the Day (Chris Empey Photography) ~
Based in the Niagara region, Chris
displays many of his photographs and often
includes valuable discussions of his
technique ~
http://potd.chrisempey.com/
The
Luminous Landscape ~ A
good resource
as it combines reviews of digital
cameras with in depth technical discussions
on the photographic art form ~
http://luminous-landscape.com/
Each New Day a
Miracle ~ By now you've probably
noticed that I'm into photography as well as
computers. Some of you have graciously
complimented some of my photos in the past,
here is a link to my website if you'd like
to see more ~
http://www.eachnewday.com/Albums/Photographs/index.html