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Digital Photography |
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Resolution
Cameras come with a small amount of internal
memory, but usually not enough to store larger, high-quality
pictures. Buy a memory card (64MB, 128MB or even
256 MB) and use that to store your photos. That will let you
keep your resolution high enough to be able to enlarge a picture
without it looking grainy. |
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Zoom
Many digital cameras come with optical zoom, digital zoom, or both.
Optical zoom is the important one; it uses a lens to magnify your subject before the picture
is taken. Digital zoom is an artificial zoom performed by the camera’s software
after the picture is taken. Optical zoom keeps your resolution; digital zoom decreases
resolution. |
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Batteries
Digital cameras drain batteries very quickly. Rechargeable batteries
are a must. You may also want to consider an AC adaptor if you shoot frequently in a studio
or in one place. To conserve batteries, avoid using the LCD monitor when composing your
shot; it uses a lot of power. Use the viewfinder instead. |
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Speed
In most digital cameras, there’s a slight delay between the moment
you push the button and the moment it takes the picture. There’s often an even longer
delay between one picture and the next, because the camera has to save the image to its
memory. It’s a good idea to get used to that ‘lag time,’ and anticipate
it when taking action shots. One way to check it: take several pictures of a clock. Press
the button when the second hand is on the 12, and then look at the picture. The second
hand in the picture will tell you how long it took the camera to actually ‘snap’
the picture. Try this again, but press the button several times, as fast as you can. This
time, the second hand will tell you how long your camera needs between multiple shots.
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