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Rangefinder Magazine
June 2002
Digital Photography by
John Rettie
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| The future of photography is digital as seen in this
scene at NAB—soon we’ll be surrounded by many LCD screens
displaying video and still images as photographers become producers
of stories. |
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WHEN I ATTENDED the annual convention of the National
Association of Broadcasters in Las Vegas in April I did not expect to
come away with what I and many others think is a vision of the future
of still photography. After all, this was where the latest in video equipment
was being displayed, not still cameras.
Quickly I learned that one of the “buzz words” at NAB was
24P. It stands for 24 frames per second, progressive scan.
What it means is that the latest digital video camcorders from companies
such as Sony and Panasonic can capture images at 24 frames per second
in progressive mode, where each frame is a complete image. This happens
to match the speed of traditional 35mm movie (film) cameras. Regular NTSC
TV video camcorders capture images at 30 frames per second in an interlaced
mode. In actuality the camcorders are capturing 59.94 half frames per
second that are combined (interlaced) to produce 29.97 (to be exact) frames
per second.
George Lucas shot the latest Stars Wars movie in digital rather than film
and many independent movies are now being shot digitally. At NAB Sony
went so far as predicting that half of all movies will be shot digitally
by 2005. It’s a statement that many industry pundits have difficulty
swallowing, but Sony has a vested interest, as it has several high-dollar
video camcorders that can record at 24 fps and produce images that are
as good or better than traditional 35mm movie film.
It’s obvious that Kodak and film processors have to be quivering
in their boots as it looks as though the movie industry will be switching
to digital quicker than many thought possible.
Those who are aware of the history of digital cameras will know that the
earliest usage of digital capture devices (CCDs) was in video cameras.
Quality cameras were very expensive and were used by TV stations for news
gathering and live broadcasting. More affordable CCDs appeared in consumer
level camcorders but quality was limited, as VHS tape was not capable
of capturing much information. Early still cameras with decent quality
were extremely expensive ($50,000 and up) and only usable in still life
studio shoots. Gradually as CCDs in video cameras improved, the same chips
began to appear in low-end consumer cameras but the quality has never
been good enough for professional or high-end amateur use.
In order to meet the more demanding requirements of still photographers,
chip manufacturers started producing CCDs made especially for still digital
cameras. We are now at the stage where CCDs for still cameras have way
more resolution than is required by video cameras, at least for standard
TV usage.
But now that the technology exists to produce cost effective high resolution
CCDs, filmmakers along with producers of TV shows and TV commercials can
start to think digitally, as they demand much higher quality.
That’s why Sony and Panasonic have introduced 24P cameras in order
to meet this demand for film-like quality from video camcorders. It was
fascinating to see the incredible quality produced by the newest video
camcorders at the Sony display. These cameras contain three 2.2-megapixel
CCDs, whereas a consumer camcorder might have just one 400,000 pixel CCD.
Although I did not see it for myself, soon you’ll be able to alter
the exposure settings and the white balance in different parts of the
image by clicking areas on a preview screen. In theory each individual
pixel is individually controllable so you can produce the ideal image
from any scene. Imagine being able to balance highlights and shadows before
an image is captured without resorting to complicated lighting setups.
Okay these video cameras are still very expensive but from a filmmaker’s
point of view, initial cost does not matter as the savings in time and
film costs are enormous. For example, a tape to hold 40 minutes of high
quality video costs about $40 compared to around $5000 for 40 minutes
of processed 35mm movie film.
Another reason for the increased interest in high quality digital video
is that High Definition TV is on its way. This will enable consumers to
see images on their TV screens that are more film like with a resolution
of 1920x1080. It also means that all TV stations and TV production companies
will have to convert to video camcorders producing these higher quality
images.
Other interesting shifts noticeable at NAB included FireWire, which has
been around for some time but is now catching on with professionals in
the video and movie-making business. Panasonic displayed a collection
of cameras and recorders all hooked together via FireWire cables. It all
helps make video editing much easier and less costly. Independent movies
are being made using Apple’s $999 Final Cut Pro video editing program,
which is disturbing news for manufacturers of high-end editing systems
that can still cost $50,000 to over $200,000. Apple had a large presence
at NAB and its computers were seen at many booths, including Sony.
Another interesting tidbit is that a low cost way of capturing near film-like
video is to use a European standard PAL camcorder that shoots at 25 fps,
which is much closer to film speed than the 30 fps demanded by an NTSC
camera. Until recently the only way of getting a PAL camcorder was on
the gray market. However Canon, Sony and other manufactures realized there
is a demand for the better quality PAL camcorders so they have been quietly
importing them in small numbers through their own official import channels.
What you ask does all this mean to still photographers? As the need for
high quality CCDs producing high-resolution video images grows it will
inevitably be more economical for the manufacturers to produce one chip
to meet both needs. Foveon, for example, says its new three-layer chip
is ideal for video capture as well as for still images. It’s already
possible to capture individual frames off today’s digital video
cameras, so it is easy to see the day arriving when one photographer will
shoot events with just a video camcorder and still images will be captured
later as needed. Photographers will be shooting with a 24 fps video/still
camera most of the time.
This thought is a perfect segue into the next topic.
The Digital Journalist
For the past few years Dirck Halstead, the well-know former Time magazine
photographer, has been shooting video instead of still images. He is so
convinced that the future lies with video rather than still that he runs
an organization called The Digital Journalist (www.digitaljournalist.org).
Once a year he holds an intensive one-week course (called the Platypus
Workshop) for still photographers that teaches them how to become videographers.
His premise is that still photojournalists are telling stories with pictures
and video helps them tell a better story.
In his opening remarks he described how opportunities for videographers
were limited by the fact that there were only three TV channels not long
ago and the cost of capturing and editing video was astronomical. Now
there are hundreds of TV channels and thousands of web sites all looking
for content. One person carrying a handheld camcorder with a laptop computer
such as a Mac PowerBook and an editing program such as Final Cut Pro can
now create video stories easily. What cost millions of dollars not long
ago now costs under $10,000. “Any young person can do what a network
with hundreds of people did only 30 years ago,” Halstead told the
attendees jammed in a classroom at Brooks Institute’s new video/film
campus in Ventura, CA. It’s called the democratization of film/video
making.
Halstead points out that he started out with a 4x5 Speed Graphic as “you
weren’t considered a professional photojournalist if you didn’t
have one back then.”
I did not have enough time to attend the whole eight days of the course
where 40+ still photographers from newspapers all over the U.S. potentially
started a new career as videographers. These students would spend the
week learning that being a videographer is different from being a still
photojournalist, yet both are out there telling a story. For example,
Halstead noted how a still photograph of two people arguing would have
both of them in the same frame whereas a video would have two pictures
alternating between the two subjects for maximum effect. He reminded the
students that they are visual journalists not photographers.
In keeping with ongoing changes in photography, Brooks Institute of Photography
now offers a BA course in Visual Journalism.
Photoshop 7.0 and Mac OS X
Just before I finished this month’s column I got a copy of Photoshop
7.0, the latest version of the all but indispensable professional digital
editing program. There was a full review on the program in last month’s
Rangefinder so I will only touch briefly on my initial experiences.
First off, I love the new healing brush and patch tools. It’s amazing
how accurately both these tools manage to remove blemishes on a person’s
skin or dust spots with the click of the mouse. Prior to this it took
careful use of the cloning (rubber stamp) tool, as it was very difficult
to get accurate colors and shading. Now one can choose areas to clone
without worrying about the color or lighting as the tool just copies the
texture from a good area even if it is in shadow. It’s possible
to remove lines and creases in skin in no time at all.
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Photoshop’s new patch tool
is great for removing those wrinkles that so easily spoil an otherwise
good photograph. Apologies to Hollywood actress Lori Morrissey for
showing this not so flattering photograph during retouching! |
Finally one can quickly
look through images en masse with the new File Browser in Photoshop
7.0. |
Another welcome feature is a decent browsing function. It opens up all
images in a folder and produces thumbnails that can be rotated and marked
in order of importance. It is then possible to save this information in
a separate cache file that can stay with the folder for future use. In
effect it’s a quick indexing method. Prior to this tool I have always
used Graphic Converter to take a quick look at images before deciding
which ones to open and edit in Photoshop. Browsing from within Photoshop
should be a lot easier, once I get used to it.
An additional CD-ROM, containing an hour’s worth of tutorials describing
the new features is included with Photoshop 7.0. The tutor is Deke McClelland
who has written many Photoshop books. The three chapters on the CD-ROM
are a sampling of the full DVD available from Total Training (www.totaltraining.com).
For Mac users, which is most of us, Photoshop finally runs under OS X.
Unfortunately, all third party plug-ins will have to be upgraded to run
under OS X so it’s still necessary to switch back to the Classic
mode to use many scanners and specialized plug-ins and filters. Adobe
provides both versions and they can be loaded and running at the same
time so it is not so much of a problem as long as you have plenty of RAM
memory.
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FireWire Filmmaking is a book that describes
how to use FireWire-enabled equipment for
making movies. |
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Quick Book Review
FireWire Filmmaking
Venture into a bookstore and there are plenty of books on filmmaking,
either for wannabe professionals or for home movie making. FireWire Filmmaking
by Scott Smith (Peachpit Press, $39.99) takes a different approach. It
looks at how small DV camcorders can be used to make movies and how FireWire
cables can be utilized to hook cameras together and connect them to computers,
recorders and storage devices. The book is aimed mostly at those who want
to learn about hardware and even includes advice on using FireWire for
networking and printing. A DVD-ROM included with the book has several
short movies with behind the scene descriptions of how they were made.
Sample software is also included on this disc, which can be played in
a DVD player or on a computer.
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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