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Rangefinder
Magazine
October 2003
Digital
Photography: by John Rettie
Diminutive Cameras Can Be Functional
Generally speaking, a larger camera produces better
pictures, which is why many photographers end up using a medium format
camera instead of a 35mm system. It’s also true with digital cameras—the
bigger the camera and the larger the image capture sensor, the better
the final image quality. Yet, despite this, in digital imaging, as with
all electronics, there is a continuing trend towards miniaturization.
Within reason, smaller can be just as powerful and more convenient. Just
as I was finishing this column I had my bi-annual dental checkup and
the assistant was learning to use a new digital orthodontic camera. It
was no bigger than a toothbrush yet with its built-in LED lighting and
miniature lens, it provided an impressive image on a nearby monitor—good
enough to clearly show a fracture in a filling.
On a more practical note,
I’ve recently had the chance to try out
two cameras that are very small, yet offer some advantages that make
them worthy of a look. Even if not for immediate professional use, they
certainly offer a glimpse of what we can expect in future iterations
of these marvels in miniaturization.
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| Despite its diminutive size, the Minolta Dimage Xt
produces excellent quality images. |
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Minolta Dimage Xt
Several years ago it looked as though Minolta might have become one of
the leading digital camera manufacturers. Yet despite producing some
leading-edge designs, it was just not able to get a leg up on its competitors
in either the professional or consumer marketplace.
Nevertheless one of its newest cameras is an intriguing piece of equipment.
The Minolta Dimage Xt is a very small camera not much larger than a credit
card yet it packs features one would expect in a camera several times
bigger.
Its neatest feature is a 3X zoom lens (37–111mm
equivalency) that does not extend out of the body, even when shooting.
Ingeniously,
Minolta
engineers have created a lens system located vertically within the all-metal
body. The light enters a small window and is reflected through a prism
down through the lens elements to a CCD sensor. It vividly demonstrates
one of the major benefits of a digital camera in that designers are not
constrained by having to contend with film and the need for a film path
with spools or cassettes for storage.
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| Minolta engineers have managed to make a diminutive
zoom lens less than two inches in length that resides vertically
totally inside the camera body. |
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Obviously, this camera is not for
professional use but instead is aimed at consumers, including professionals,
who want a stylish small camera
that can easily be carried in a pocket for use at times when lugging
around a bigger camera is not convenient. Obviously though, even a camera
this small is useless if it cannot produce decent images. Amazingly,
the camera’s 3.2-megapixel CCD produces images (2048 x 1536) with
quality good enough for making 8 x 10 prints. Images can be captured
as 9.1MB TIFF files or as JPEGs in three quality settings. The quality
of the images is on par with those from my much bigger Nikon Coolpix
995.
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| A higher level of jpeg compression on the Minolta
image (left) caused some of the quality differences compared to the
image (right) captured by a Canon EOS-10D camera. |
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In use, the most difficult thing about a camera this
small is holding it steady. Being less than an inch thick, there’s
naturally no room for a decent handgrip. What’s more, when holding
it in two hands it’s all too easy to cover the lens opening with
a finger so it takes an unconventional hold to avoid this problem. If
you use
the LCD as a viewfinder it’s easy to see your finger but with the
optical viewfinder it’s all too easy to take a shot with a finger
covering part of the lens. Like many modern point-and-shoot digital cameras,
the Xt can also capture small video clips with sound. In addition, it
can also be used as a voice recorder separately from voice annotation.
Images
are stored on a SD (Secure Digital) memory card which slots in alongside
a really small lithium-ion battery. Not surprisingly this battery
barely provides enough juice for capturing more than about 50 images
when used with the LCD screen, as I discovered as a tourist in Britain.
It was a great timing as I was on vacation. Instead, the Xt proved to
be the ideal camera for capturing a few tourist images and family album
type shots. With the standard compressed JPEG setting I captured a total
of 175 still images and 33 seconds (10 MB) of (320 x 240) video footage
on a 128MB memory card.
In its present form the Xt is a nice camera for
a person who needs to have a camera with them at all times or for the
person who looks on a
camera as a piece of jewelry. With its brushed metal finish and lack
of protrusions, this is a camera that looks cool—and it produces
good images. The more I played with the camera the more I grew to like
it. I can recommend it. The retail price is $399.
Sony Ericsson P800
If you have traveled to Japan or Europe recently you’ll have no
doubt noticed that a large number of people, especially teenagers, are
taking pictures using their cell phones, or mobile phones as they are
called in the UK and many other countries. Indeed, a recent Future Image
report says that sales of camera-enabled phones will exceed that of all
digital and film cameras combined within one year. Ironically not one
camera manufacturer is selling any of these “new” cameras!
Only
now are these camera phones starting to appear in the U.S. and most of
them only work with service providers using the GSM system. As I was
traveling in the UK it was an ideal opportunity to try one and see if
it’s useful for a photographer or whether it’s more of a
gimmick.
The Sony Ericsson P800 phone is one of the more exotic
camera phones as it also doubles up as a PDA, Internet browser, voice
recorder,
video
player, date book, MP3 player and game console. With a large color LCD
screen it is somewhat bulkier than most phones, although not much bigger
than ordinary cell phones of just two years ago. However, with just a
0.3-megapixel (640 x 480) CCD and a fixed length lens, it is very limited
as a camera. Taking a picture is pretty simple. One uses the LCD screen
for image preview and a small button at the side of the phone as the
shutter button. Images
are stored internally and can be transferred to a Memory Stick Duo storage
card that slots into the side of the body. There are no adjustable settings
or a flash. If one needs to transmit an image immediately to another
compatible phone it could prove useful when scouting for locations or
for showing a client something while away from a computer.
As a work
tool the P800 is a useful mobile phone as it provides full PDA capabilities
such as address book and simple note taking. Entries
are done using a small stylus on a touch screen LCD that can recognize
simplified handwriting. It’s even possible to use the phone as
a PDA or camera on a plane as there is an option to switch off the phone
portion of the unit.
As an aside, it’s worth noting that mobile
phone systems are regarded by industry pundits as being more advanced
in industrialized countries
outside of the U.S. This is because, apart from Japan and Korea, most
countries have standardized on the GSM system. Because of the enormous
market for GSM phones, worldwide competition is greater and there are
many more exciting developments occurring outside of the US.
For several
years I have been using a tri-band GSM phone with Cingular service in
the U.S. and Virgin Mobile service when in Europe. I have
been lucky enough to have a UK address that allowed me to sign up with
Virgin in the UK without a monthly fee or contract. Nowadays though anyone
can walk into a Virgin store in the UK and for just 10 Pounds ($16.50)
one can buy a SIM card with about 25 minutes of airtime (which can be
topped up) without having to sign up or even provide a UK address. With
an unlocked tri-band GSM phone it’s easy to then have a local number
with calls costing about one sixth of the cost (one minute costs 25–33
cents) of roaming using a U.S. service.
If you love new gadgets the Sony
Ericsson P800 is an intriguing mobile phone that provides many functions.
In all honesty if you need decent
photos this is not yet ready for prime time. I have absolutely no doubt
though, when you look at the way the Minolta Dimage Xt delivers decent
images and the progress that’s being made in mobile phones, that
it will not be long before we will be able to buy a camera phone that
can take high quality still images. Or maybe it’ll be a digital
camera from a camera manufacturer that also happens to be able to make
phone calls and double up as a PDA.
Quick Book Review: Photoshop Restoration & Retouching
In the past, few photographers became involved in restoration or heavy
retouching of photographs as it was just too time consuming and required
skills with airbrushes, pens and other specialized non-photographic tools.
Nowadays it still takes time and skill but the tools have become infinitely
easier to use as they are all contained in one computer program—Adobe
Photoshop.
Katrin Eismann, a well known lecturer and teacher on
digital imaging, has rewritten and updated one of the most informative
books
that explains
how to use Photoshop to restore old photographs and retouch new ones.
Restoring old photographs is a service many photographers have avoided
in the past yet it is a lucrative business. Just about half of the 366
pages in this full-color book (Photoshop Restoration & Retouching,
Second Edition, published by New Riders, $49.99) covers this subject
in great detail. Studying this book and learning the techniques could
help open up a new business service for those with patience and the desire.
While
most of us hope that we never need to retouch any photographs we shoot,
reality is that many portraits can be improved with some deft
Photoshop work. Dozens of tutorials including tips and techniques by
many photographers are included in the book. Eismann’s writing
style is friendly and helpful. Some of the images used in the book are
downloadable from a supplemental website (www.digitalretouch.org) so
a reader can practice on the images and better understand what is involved
in mastering the techniques.
Besides step-by-step examples, Eismann also
covers setting up a good computer system and understanding what makes
a photograph look good.
Much of this advice can also help a photographer take better photographs
in the first place. It’s amazing to look at some of the before
and after images reproduced in the book and see how subtle retouching
can transform the picture without the viewer even being aware of exactly
what has been changed. Eismann clearly describes how to digitally improve
portraits while maintaining the subject’s character.
John Rettie
is a photojournalist who resides in Santa Barbara, CA. He has been
using a camera as a professional for 33 years, a computer for
23 years, and has combined his knowledge of both for the past ten years.
Readers can contact him by e-mail at john@johnrettie.com or by snail-mail
c/o Rangefinder. |