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August
2000, Week 3 --
Getting Personal: Picking a
Digital Camera. |
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One of the most common reader requests is for advice on purchasing a
digital camera. They're a big hit with consumers, and were initially an
even bigger hit with businesses. |
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The cameras are handy for snapshots but even handier as a quick and easy
way to add illustrations to sales brochures and operating manuals.
There are numerous articles on the subject in computer and
photography magazines that go into the features of dozens of digital
cameras at great length. But just like choosing a computer, the final
selection is not obvious. For the short side, I pass along my own thinking
on the matter. |
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After considering many models I bought a Panasonic "PalmCam" for
$800. It did not have the best resolution; for that you should look to
Olympus or Nikon. It did not have the best zoom lens; Nikon again. It did
not have the highest storage capacity; the Casio, with a 435 MB (megabyte)
IBM hard drive took those honors. What it did have was a built-in Imation
SuperDisk drive, which takes a 120 MB disk. Other features were similar to
other cameras in its price range. |
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Image resolution is measured in pixels -- dots in the image. High
resolution images these days run 2-3 megapixels (millions of pixels).
Digital camera companies heavily promote these megapixel counts because
they know that's what buyers usually look for. |
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As a practical matter, however, there is little call for taking digital
pictures at such high resolutions. The image files are too large to send
over the Internet except at great time and expense. The person receiving
such a file may have to tie up their computer for the better part of an
hour to download one picture, impractical except for special purposes. If
you want a really high resolution image you are still best off using film.
An ordinary 35mm slide would have an equivalent pixel count of around 16
million. |
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High resolution pictures with digital cameras have other problems. Most
digital cameras use flash memory cards, typically 8MB. At high resolution
these cards will hold only two or three pictures. Larger capacity cards
are expensive. A 120 MB Imation disk on the other hand is cheap and can
hold nearly 100 pictures at the PalmCam's highest resolution of 1.3
megapixels. At medium resolution it will hold 400-500 pictures. |
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Storage capacity was more important to me than megapixel image size.
Having 400 images lets you select the best ones. We already have Imation
drives attached to our computers and can simply take the disk out of the
camera and pop it in for browsing and editing. For computers without such
drives attached, the camera itself acts as an Imation disk drive. Since
the disks are cheap, they don't have to be erased and re-used, but can be
labeled and shelved to serve as digital albums. |
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Like selecting a computer, it all boils down to what features of the
equipment are most useful to you. For myself, high storage capacity was
more useful than high resolution; if I need a high resolution image I'll
use film. Kodak, by the way, will transfer such images to a CD for a small
charge. |
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A
hard drive for your pocket |
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The most interesting new gadget we've seen in many moons is the
"Digital Wallet" from Minds@Work. |
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The name is somewhat misleading, because it has nothing to do with credit
cards or setting up spending accounts online, it's a six gigabyte hard
drive. The device weighs 13 ounces (370 grams) and measures 5.25 x 3.75 x
1.25 inches (135 x 95 x 32 millimeters). It would fit in most men's shirt
pockets and easily fit into a jacket pocket. |
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Six gigabytes is a lot of storage. You could transfer the entire contents
of a typical computer to the Digital Wallet. Or, you could store about
3,000 high resolution digital pictures. |
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The Digital Wallet is designed to work with Windows 98 or 2000, but has
its own processor and operating system: Motorola's "ColdFire"
processor and "Digital DNA" system. This means it can also work
without being connected to a computer and can transfer files to almost any
device able to accept a USB (universal serial bus) connector, or
equivalent adapter. The device can also read flash memory cards. |
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List price for the battery powered Digital Wallet is $500. Phone
information: 800-459-5799 or 949-707-0600; web: www.mindsatwork.com. |
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Internuts:
It's a game of inches |
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--
www.sportscliche.com You're a
new sports writer on the paper and worried about your first story. Why not
use the cliches that more experienced writers have used for years? It's a
whole new ball game. It's all over but the shouting. The fans are going
wild. This could get ugly. |
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www.fastball.com/foulpole/quotes
Great quotes from baseball coaches and players, like ... Casey Stengel:
"All right, everybody line up alphabetically according to
height." And Yogi Berra: "Baseball is 90 percent mental; the
other half is physical." |
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--
www.marksport.com Their logo is a
bullseye, and their target is the great outdoors. Lots of information
about hunting and fishing. |
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--
www.greatentertaining.com
This is an online store, but also offers party ideas and recipes.
Particularly good for children's parties and prices seem reasonable. |
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http://donsbosspage.com Personal
site from a guy named Don, on how to avoid work at the office and defend
yourself against the boss. Try the sound effects for typing and whipping. |
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NOTE:
Readers can search more than four years of columns at the "On
Computers" web site: www.oncomp.com.
You can e-mail Bob Schwabach at bobschwab@oncomp.com
or bobschwab@aol.com. |