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Rangefinder
Magazine
June 2004
Digital Photography: by John Rettie
Futuristic Ideas Coming to Fruition
I’ve been trying out several new cameras and reading
reviews on numerous web sites in the past few weeks. I’m rapidly
coming to the conclusion that we’ve reached a plateau in image
quality. Don’t misunderstand—I don’t believe we’ve
reached the ultimate level of image quality by any stretch of the imagination.
I think that is still some ways off.
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Auto technicians are already using Microvision’s Nomad head
up
display. How long before it’ll be an alternative viewfinder
for a digital camera? |
What I’m finding is that each
new prosumer digital camera only delivers an incremental improvement
in quality. What I’m hearing
more and more is people saying that a 6-megapixel image capture device
provides enough resolution for the majority of photographers and that
the properties and size of the pixel count more than the number of pixels.
Although I haven’t yet tried any of the 8-megapixel consumer cameras,
none of them have garnered rave reviews from those who have experienced
them.
I believe in the next few years we’ll see an improvement
in the features on cameras, and perhaps more importantly, an attention
to
the
quality of the lens, which is becoming a critical element in image quality.
Kind of ironic, as it has always been lenses that have been more important
than bodies in terms of image quality.
Another area where more improvements
will be made is in ergonomics and the operation of a camera. We’re
going to see faster operating cameras—maybe even entry-level models
will be as fast as the Canon EOS-1D Mark II and Nikon D2H. We’ll
definitely have better LCD screens—they are already appearing on
Kodak consumer cameras. We’ll
see increasingly more image capture devices delivering different looks—akin
to different types of film. If we’re lucky, we might even see pro
cameras getting smaller and lighter—but please not too small or
too light!
It’s my belief that what is really going to revolutionize
the way we take photos are new features and capabilities that are totally
different
from what we’re used to.
Features that will require “out
of the box” thinking on the part of photographers.
How about a
viewfinder that is placed in a small overhead display located in a pair
of glasses with the image being seen by the camera projected
directly into the user’s eye by low-powered laser beams? Imagine
being able to hold the camera anywhere and seeing precisely what the
image is going to look like before and after capture. Oh, and of course
camera information and histograms can easily be overlaid on the display
as well.
A dream? No. It’ll be here sooner than you think.
Honda has started deploying a working system using a
head up display module called Nomad, made by Microvision. It allows a
technician to see
diagrams and tech information about a car displayed right into his eyes
so he or she does not have to look away to view a computer screen or
read a manual. Initial tests show that the time required to perform a
range of maintenance tasks can be lowered by up to 40 percent. It’s
the commercial development of head up displays that have been used in
the military for some time.
According to a Microvision media release,
Canon has been working since last year with various prototypes to develop
displays using the same
system for video and still digital cameras. Just think how great it would
be to have a wireless remote viewfinder on your camera. Okay studio and
video photographers already have the ability using a computer monitor,
but a display right on the retina of your eye is something totally different
in terms of practicality.
We’ve already heard about companies developing
image capture devices where each pixel can be independently “controlled” allowing
for different “exposures” in different parts of an image.
Once an imaging device such as this appears, it’ll allow us to
get perfect exposures in almost all situations, however bad the lighting
is.
Ironically, aside from the head up display for cameras,
Microvision is working on a digital camera that captures images one pixel
at a time.
Imagine, if you will, that instead of all 14 million pixels on a Kodak
Pro SLR capturing information simultaneously, each one were to capture
light individually, one at a time.
There would have to be 14 million
individual exposures performed at an incredible speed in order to produce
a usable image. Microvision has prototype cameras that project a laser
beam onto an object and capture the information for each pixel in a 40-billionth
of a second. Consequently, it can take 30 pictures in one second with
a resolution equivalent to a computer screen. Initial applications will
be for medical use such as endoscopies. But don’t discount the
possibility that this development could lead to laser beams replacing
flash lighting in the future.
Think outside the box—there’s
a possibility some scientist or engineer somewhere may already be working
on the idea for your future
camera.
Enough of the future. Back to reality.
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| Sony’s 20-inch LCD monitor has a sleek thin
bevel surrounding the screen for best space utilization. |
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Sony LCD Monitor
As promised, I am trying out more and more LCD monitors. Whether we like
it or not the days of CRT monitors are numbered. In fact, there are only
a handful of high-end CRT monitors on the market nowadays. While there
are still many photographers who do not like the quality of the image
displayed on a LCD, most high-end LCD monitors are more than good enough
for all but the most fastidious users.
The bad news is that prices have
not been dropping nearly as fast as predicted. In fact, they have become
stuck at the same level for over
a year, and there are no signs of any imminent price drops.
There’s
no doubt that up until last year Apple’s range of
Cinema Display LCD monitors were the best on the scene. However, other
companies have caught up, and there are several on the market that deliver
stunning displays. Rumors have been around for months that Apple would
up the ante again with new monitors, but at the time of writing this
article, none were on the horizon.
For the past month I have been using
one of Sony’s newest LCD monitors,
the SDM-S204. It is a 20-inch model with a 1600x1200 resolution, which
compares favorably with the 1680x1050 resolution of Apple’s 20-inch
Cinema Display. What’s more the Sony is priced at $1199, making
it a hundred bucks less expensive. Personally, I like the thin black
edge trim on the Sony more than the wide frame surrounding the Apple
display.
From a Mac user’s point of view the one shortcoming
on the Sony is the lack of the versatile ADC port, which is unique to
modern
Macs.
However the Sony does have two regular analog ports and a digital DVI
cable, so with the right adaptors it’s still possible to run two
monitors off a graphics card such as the ATI Radeon 9000 Pro.
From a
PC user’s point of view, the Sony lacks versatility, as
it cannot be turned 90 degrees for portrait usage. However, it can be
removed from its base and wall mounted as all the cables in the rear
come down flat with the back of the monitor.
As far as performance goes,
the quality is good. It’s not as good
as the much more expensive Eizo monitor I tried a few months ago (Eizo
ColorEdge CG21 LCD, reviewed in Rangefinder, Feb. 2004), and it does
not seem as good as the Apple Cinema Display, although I could not view
them side by side.
At first I found the display too bright even though
I adjusted it using the calibration method built in to Apple’s
operating system. Fortunately, I recently received a Monaco Optix monitor
calibrator for review, and
as soon as I calibrated the monitor, it provided a much more pleasing
image that I am happy with. I’d add the Sony SDM-S204 LCD monitor
to my short list of LCD monitor suitable for photographic use.
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| Monaco System’s Optix XR colorimeter provides
an easy way to profile a monitor for color quality. |
Monaco
Optix XR Monitor Calibrator
As mentioned above the Monaco Optix XR Monitor calibrator came in handy
for setting up the Sony LCD monitor correctly. I think many of us tend
to become sloppy and just live with what we see on our monitor. I know
I should be more dutiful about performing color management tasks regularly
in order to maintain consistent colors. We all should.
There’s certainly
no excuse with the Monaco Optix XR calibrator. It costs just $299 to
buy the calibrator and software, and it works on
a Mac or PC and can be used on a dual monitor setup. Once I had created
a profile for the LCD screen, it made me aware how inaccurate the colors
were on my second monitor, which is a Hitachi 19-inch CRT monitor I purchased
several years ago.
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| The Monaco Optix XR software guides one step by step
through the process to measure a monitor’s parameters in order
to create a color profile. |
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Creating a profile is easy and takes only a few minutes.
The colorimeter hangs over the top of the monitor and does not require
suction cups so
it can be used on fragile LCD monitors as well as CRT monitors. The software
guides the user through adjusting the monitor for maximum and minimum
brightness, and then it reads various shades of gray and different colors
to create a specific and unique profile. Like all color management systems,
one is advised to run a check regularly, and it will do just that with
a pop-up warning that can be set by the operator. I’ve got mine
set to remind me every 14 days.
In addition to creating profiles for
the monitor, one can also get EZcolor software for creating profiles
of scanners and printers. Monaco DC color
will create profiles for digital cameras. I plan to try that in the near
future and I’ll report on my findings.
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| Tim Grey’s excellent book on color management
is aimed at photographers. |
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Quick Book Review:
Color Confidence
There’s no doubt color management is a complicated subject. Because
of this fact, too many of us just ignore it and hope the problem with
mismatched colors will go away as technology advances. To a certain extent
the problem is going away, but it’ll never completely be automated
because color rendering is so subjective and there are so many variables
that affect what we see.
Photographers know this only too well as we’ve
been tackling the subject for years when making color prints the old
fashioned way. What better to have a book on color management for the
digital photographer written by a photographer who understands both subjects?
Tim Grey has written a comprehensive book (Color Confidence,
published by Sybex, 254 pages, $44.99) on the subject. He covers all
aspects of
color management—from theory through controlling color in a camera,
on a scanner, monitor through to output on a printer. He explains, in
an easy-to-read format, how to manage the workflow and create profiles
to help produce color-accurate images for final output from the web to
printed books. He also explains how to correct problems with poor print
quality without messing up the image on a monitor.
John Rettie is a photojournalist
who resides in Santa Barbara, CA. He has been using a camera as a professional
for 34 years, a computer for
24 years, and has combined his knowledge of both for the past 11 years.
Readers can contact him by e-mail at john@johnrettie.com or by snail-mail
c/o Rangefinder.
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