Digital Cameras Lesson
Digital
Cameras
Lesson
January 11, 2012
Pixels
Terminology
 Pixel-
tiny dots that make up an image.
 Megapixels- Tells you how many pixels the
image has. 1 million pixels=1 megapixel.
The higher the megapixels the
better…cameras state how many
megapixels they can produce. (can go
up to 120 megapixels. Most small (SLR)
cameras are 12 or 14 megapixels and
most phones are 8 mp
Types of Basic Digital Cameras
 Subcompacts:
fit in pocket and carried
everywhere
 Compacts: Small enough for handbags
but too big for pockets
 Superzooms: 15x or greater zoom, good
for sports, travel, or nature
Sub
compact
superzoom
Types of Advanced Digital
Cameras
 Advanced
Point and Shoots: non
detachable lens. Lightest advanced dig.
Camera
 SLR likes: interchangeable lenses, smaller
and lighter than SLR’s
 SLR: most features, interchangeable
lenses, best image quality in low light,
heaviest and most expensive, HD video
SLR
Advaned
P&S
SLR Like
Features
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Exposure modes: manages the shutter speed and
aperture according to the available light. Some
have an automatic, some have scene modes,
and some let you set both.
Zoom Lenses: allows you to vary the focal length,
measured in x’s, see 10 x ex. This is the stronger
magnification capability. All cameras do not have
the same 10x zoom. You need to look at the mm
zoom quality. The higher the better.
Image Stabilization: Helps the picture not blur
when you take the picture. Make sure it has this
with an optical zoom of greater than 3x
Features
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Face Detection and Smart Camera: Finds face in picture
so it shows it well focused and well exposed. Smart
camera is new and some alert you when the person blinks
in photo or shoots camera when subject smiles.
Focus: Automatically adjust or manual..make sure you
look for what kind of focus the person needs
Shooting modes: single, burst, and self timer
Playback mode: reviewing images on LCD screen
LCD Viewers: make sure you can see the images under
any light
Flash: make sure it has an auto flash and this may also
include a red eye reduction
Image file formats: most are jpeg, nice cameras like SLR’s
are converted with RAW files that are the best to use to
edit in any software
Features
 Memory
cards: SD mostly used, CF, Memory
Stick Duo and xD are other ones
 Connections: look at all the opportunities to
view photos such as printer, tv, and computer
outlets
 Video: look for availability, also look for HD
video and how to video, also look for
zooming while video. Look for how to convert
to computer.
Summary
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What kind of camera are you looking for- basic or
advanced?
Where do you plan to use it- is it to use everyday
or take on vacations and weddings and use for 4H photography?
What is your budget?- advanced are far more
expensive
What features does the person want?- see
features
How do you store and view photos?- is it
compatible with your computer and easy to view
photos
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