Transcript Digital Photography

Digital Photography
Bethany Smith
Learning Technologies
The Camera - Front
http://www.canon.com
Shooting Modes
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Auto
Portrait
Landscape
Running
Portrait & Landscape
shooting modes are
not the same as
orientation
The Camera - Back
http://www.canon.com
Taking Pictures
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Hold it steady
Use natural sunlight whenever possible
Put the sun behind you
Get close…almost too close
Use proportion
Use the horizon as a guide
http://www.kodak.com/eknec/Page
Rule of Thirds
Imaginary lines are drawn
dividing the image into thirds
both horizontally and
vertically. You place
important elements of your
composition where these
lines intersect.
http://www.betterphoto.com/exploring/t
ips/thirds.asp
Rule of Thirds Example
Off Center….
but in a good way
• Hand in hand with the rule of thirds is
keeping your subject off center
Up-close & Personal
Up-close & Personal
• Embracing your inner zoom & the
MACRO feature on your camera
• The macro mode button, when pressed,
switches the camera into a special close
focus mode and allows the
photographer to shoot less than 10cm
from the picture subject.
Macro
Go Vertical!
• The camera is not
locked in a
horizontal position!
• Vertical pictures
suit some subjects
better - and are
much easier to add
in PowerPoints!
Action Shots
• Keep taking pictures - you have space!
To Flash or not to Flash
• Use natural light whenever possible
• Use flash sparingly
• If unsure, take one with and one
without and decide later!
Memory Cards
• Memory cards store the actual data files
of your photos
• The bigger the memory card the more
photos you can take
• The faster the memory card the faster
you can take pictures
• The memory card type is not as
important as the two above features
Photo Safari
• Find the following in the FI
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Mr. Friday
You have 20
A flower
minutes!
A person working
A pen
Something in the shape of a circle
Importing
Turn camera on and place
in PLAYBACK mode once
it is connected to the
computer
Photo Applications
• Mac
• iPhoto
• PC
• Irfanview
• http://www.irfanview.com/
• Both
• Adobe Photoshop
• Macromedia Fireworks
Editing Pictures
What is a Mega Pixel?
• What is a Pixel first…
• A pixel (short for picture element, using
the common abbreviation "pix" for
"picture") is one of the many tiny dots that
make up the representation of a picture in
a computer's memory.
What is a Mega Pixel?
• A unit equal to one million pixels.
• The higher the resolution, the more pixels in
an image and therefore the greater the image
quality.
• An image file that is 1 megapixel (MP) can
make a photo realistic print of 5 x 7 inches; a
2 MP file can make an 8 x 10-inch print; a 3
MP file can make an 11 x 14-inch print.
To Crop or not to crop
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There is always room to crop!
Use the rule of thirds
Keep original
Don’t be afraid to get in close
Resolution
• The number of pixels per square inch on a
computer-generated display; the greater the
resolution, the better the picture.
• For display on a screen, 72 pixels per inch
both vertically and horizontally is the
maximum.
• For print work, a higher number will give
better results, such as 300 dots per inch.
• With higher resolution, more memory space
will be used for the image.
What do MP & Resolution
have to do with me?
• To find the largest photo quality image
you can print, simply divide each
dimension by ppi (I.e. 300 or 72)
• A 3.2 MP camera has a resolution of 2048
x 1536
• 2048/300=6.83
• 1536/300=5.12
This will make excellent
4x6, but don’t print 8x10
Resizing photos
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By pixel
During Export
In program
Size for purpose
File Types
• GIF - raster-based color graphics file format,
often used on the World Wide Web to store
graphics. This is the type best used for
cartoon-like images.
• JPEG - A graphic format that allows images
to be viewed on the Web. It allows
compression of memory, using less space and
facilitating faster load time on a Web page.
This is the type best used for photographs.
Web images
• GIF Images- Graphics Interchange Format (GIF)
images are the most common type of image found on
the Web. GIF images are limited to 256 colors, which
is the same number of colors most computer monitors
can display.
• JPEG Images- Joint Photographic Experts Group
(JPEG) images are commonly found on the Web. JPEG
images can have millions of colors and are often used
for photographs and very complex images.
• PNG Images- Portable Network Graphics (PNG)
images are a newer type of image specifically
designed for use on the Web. PNG images can have
millions of colors will eventually replace GIF images.