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Rangefinder Magazine
April 2002
Digital Photography: by John Rettie
More 6-Megapixel Cameras and Upgrading Operating Systems
From some aspects the annual PMA show held in Orlando at the end of February
was a disappointment. Thats because there was nothing really new
unveiled by the photo or digital imaging companies. Thats really
a little unfair, after all no less than three new digital camera bodies
with six-megapixel chips were announced along with one 16-megapixel camera
back and another camera with an all-new image sensor design.
I guess the reason the announcements were not earth shattering is that
none of them really move the needle in price or overall sophistication,
except for possibly the Sigma camera with a chip designed and built by
Foveon. Early rumors had suggested that one or two companies might introduce
a whole new line of digital camera bodies with lenses specially designed
for digital capture. Other rumors suggested that 35mm-based digital camera
bodies might drop substantially in price. Nothing of the sort, although
the new introductions are at least going to be the same price, despite
the increase in specifications.
We must be getting spoiled as a Canon D60 with a six-megapixel CMOS chip
for $2999 and a Nikon D100 with a six-megapixel CCD due later in the summer
for maybe a few hundred dollars less is not all bad. Perhaps the most
frustrating thing about these new six-megapixel cameras is that they all
use mid- to low-range bodies with slower operation and less ruggedness
than is available in the high-end cameras such as the D1X and EOS-1D.
It seems as though we are still going to have to wait a few more years
before we can have speed and high image resolution in the same camera.
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| Foveon uses a new CMOS sensor with each pixel capturing
all three colors for improved image quality. |
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From a technical point of view the most significant digital camera announced
was undoubtedly the Sigma SD9. This camera, which will be available later
in the year, features a totally different image sensor developed by Foveon.
Foveon has been selling a specialist high-end studio camera for a few
years that used Canon lenses and a Macintosh laptop to capture still life
images. The quality was extremely high but it was not very practical.
Now the company has developed a three-megapixel CMOS chip where each pixel
captures red, green and blue light in three layers. Each pixel in a regular
sensor can only capture one color so that the camera has to interpret
the three colors to produce an image. Foveon claims that its sensor will
be much more efficient at capturing detail and avoiding color artifacts
that are introduced during the integration of data from each pixel. In
effect the three-megapixel Foveon chip should be similar to a regular
nine-megapixel sensor. It will be fascinating to see how well this camera
performs as there are some people who think this design will revolutionize
digital cameras, while others are more skeptical.
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| This is an image made with the new Foveon chip. Image
quality seems startlingly good. |
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As mentioned briefly last month the Canon D60, which should be shipping
by the time you read this, is a direct replacement for the D30. It has
almost identical specifications but with a 6.5-megapixel CMOS sensor for
twice as many pixels. It should prove to be ideal as a studio/portrait
camera but is probably still too slow for many photojournalists and sport
photographers.
Nikon will now have a direct competitor to this mid-range
Canon camera with its upcoming D100. It sports a 6.3-megapixel CCD in
a body loosely based on the low-end N80 film camera. Early reports indicate
that it might actually be faster in operation than the Canon D60.
Its interesting that the new Fujifilm S2 Pro is also based on the
Nikon N80 body, giving Nikon users a choice of two mid-range cameras.
Although the Fuji uses a 6.1-megapixel Super CCD sensor it interpolates
the images up to 12 MB for an image size of 4245x2848 pixels. Its predecessor,
the Fuji S1 used a 3 megapixel CCD that interpolated up to six megapixels
and many owners are more than happy with the results, so itll be
interesting to see if this camera produces a decent quality 12 megapixel
file.
Kodak added another medium format camera back to its lineup with the new
Professional DCS ProBack 645C and 645M models. Respectively, they fit
on the back of the Contax 645AF and Mamiya 645AF. These 16-megapixel backs
do not have to be tethered for operation, making them ideal for field
work as well as studio jobs.
Upgrading to Mac OS X (and Windows XP)
It was somewhat surprising that Adobe chose to reveal details on Photoshop
7.0, which will run under the Mac OS X operating system, at PMA. Obviously
the company realizes that photographers are one of its most important
groups of users. Like so many Apple Mac owners I have resisted upgrading
to the OS X operating system until Photoshop could run natively. Of all
the programs available on the market Photoshop is the one that will probably
cause more people to upgrade than any other. Of course the improvements
in the new version of Photoshop may not be that great under Mac OS X,
we will have to wait and see. Its really been more a case of why
upgrade when Photoshop will not run under the new operating system?
In anticipation of the imminent release of Photoshop 7.0, I decided it
was time to upgrade to the OS X and see what all the fuss is about.
The timing was also appropriate, as I have been running Windows XP Professional
on my PC for the past couple of months so it was a good opportunity to
compare the two operating systems. Ill admit that, even as a Mac
fan, Windows XP has favorably impressed me. It is much better than previous
versions of Windows, although it has still been crashing all too regularly
for no immediately obvious reason. Apart from the modern graphical look
of the interface, what I like about it is the easy way in which new peripherals
can be added. Even old ones for that matterI plugged in my four-year
old Brother parallel port multi-function laser/fax/copier/printer and
it immediately worked, without having to install any drivers. Whats
more the printer was also accessible for remote printing from other PCs
on the network without requiring any arcane network settings or needing
a print server.
The underlying architecture of XP is different from Windows 98 as it based
on the much more robust Windows 2000 operating system that is mainly used
on network servers and high end computers. Although there were many programs
and peripherals that would not run under Windows 2000 initially, most
have been upgraded in the past couple of years so that incompatibility
is less of a problem for Windows XP than for Mac OS X.
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The Mac OS X has an elegant look to it as demonstrated
by Graphic Converter and an open file folder
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Painter 7 was one of the first graphics programs
to run natively under OS X. Model is Ventura-based Amanda Henry.
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Compared to Microsoft, Apple has taken a much bolder stride with OS X
as it is a totally different operating system from any previous Mac OS.
It is in fact based on UNIX, which is the de facto standard on network
servers and the like. Unix is a solid industrial-strength operating system
that is well respected by IT professionals. Because OS X is an entirely
new operating system, old programs cannot run under the new OS without
being re-written. Needless to say this is quite a task that will take
several years to accomplish.
In order to get around this quandary Apple has made it relatively easy
for Macs to run both OS X and the latest edition (version 9.1 or 9.2)
of the original Mac Classic OS simultaneously. In this way older programs
can continue to be run alongside the newer versions of other programs.
All new Macs come with both operating systems pre-loaded and it is only
since the beginning of the year that OS X has been the primary operating
system that boots up first on a new computer. If you purchase Mac OS X
it includes a full version of Mac OS 9.2 in the box.
Both operating systems can reside on the same hard disk, but I decided
it was wisest to load OS X on a separate disk. I therefore took the opportunity
to add an 80GB Seagate Barracuda hard disk as my second drive. The price
of hard drives has dropped so much that it was a no-brainer at a cost
of $90 after a $50 rebate. I now have my Mac set up so that both OS X
and OS 9.2 load up every time I turn my Mac on. It obviously takes longer
to boot up but once done its fairly transparent to have both systems
running at the same time. Its a little confusing at times as there
are many differences between the two systems.
Unlike Windows XP I had to install new drivers for the Epson Photo Stylus
1280, as it was not done automatically. So far the only three programs
that I have running natively under OS X are Internet Explorer, Graphic
Converter and Painter 7, so it is a little difficult to really judge how
much better OS X behaves. One frustrating thing that does not operate
correctly is the scroll wheel on my optical Intellimouse, as it no longer
works on programs running in OS 9.2. It works fine in OS X, however.
What really surprised me is how the Mac has adopted some good features
from Windows. For example when a window is minimized it drops down into
the dock at the bottom of the screen which is similar to the
way it works in Windows. The dock is fascinating as it expands as more
programs are opened and icons are magnified as one runs the mouse over
them. It seems gimmicky at first but after a while it proves to be a good
way of keeping track of files and programs. Another minor feature borrowed
from Windows is that its now possible to have the scrolling arrows
at the top and bottom of a window instead of both being at the bottom,
which is less logical.
After using OS X for a couple of days I must admit that I like its
appearance far better than Windows XP. It is much more elegant and the
way the graphics appear and disappear is much better. I am not yet convinced
on the improved functionality but if we listen to technical gurus its
apparent that the underlying structure of OS X is potentially better in
the long run as well. Now if Apple can get more companies to produce upgraded
programs and drivers that will work under OS X the future looks good for
the Mac platform.
My advice is that its now a good time to upgrade your Mac to OS
X and learn to live with the future. Incidentally, Windows XP is also
a well worthwhile upgrade for PC users.
Quick Book Review
Most programs nowadays seem to skimp on manuals and training guides. This
is great for authors and book publishers as it creates a large market
for how-to books. Operating systems are no different and there are several
books in the stores that can help one get running in OS X and Windows
XP.
Visual Quickstart Guide Mac OS X by Maria Langer, (published by Peachpit
Press) is a 247-page paperback that sells for only $18.99. It has a straightforward
layout with pictures of the relevant computer screens placed side by side
with the text throughout the book. It is aimed at first time users of
the Mac as well as those with some experience who want to know how to
get the most from many of the new features in OS X.
Special Edition Using Microsoft Windows XP Professional, published by
Que, is a big 1200 page book that delves more deeply into the XP operating
system. For example, it offers a lot of advice on setting up a network,
upgrading a computer and other items that are not necessarily specific
to Windows XP. The book costs $49.99 but it does include a CD-ROM with
a 45-minute video on it.
John Rettie is a photojournalist who resides in Santa Barbara, CA.
He has been using a camera as a professional for 32 years, a computer
for 22 years, and has combined his knowledge of both for the past nine
years. Readers can contact him by e-mail at john@johnrettie.com or by
snail-mail c/o Rangefinder.
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