Date post: | 28-Dec-2015 |
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Digital Camera
Session 1
Camera Equipment
Pixels & Resolution
Definitions
Settings: Mode Dial, Quality, Resolution
Resources
Session 2
Camera to Computer (transferring)
Organize, View, Resize & Email, Print
Definitions
Click for Definitions in a Word document
Click to jump to Settings Slide
Digital Camera: 2.1 Mp (1600 pixels x 1200 pixels = 1.92 Mp)
Digital Image: 1600 pixels x 1200 pixels (Pixel Dimensions)
Monitor: 800 pixels x 600 pixels or
72 ppi or 96 ppi
Digital Print: 200 dpi (8 in x 6 in print from a 1600 pixel x 1200 pixel Image)
Resolution
JPEGJoint Photographic Experts Group (also abbreviated jpg) and pronounced jay-peg. JPEG is compression technique for colour images and photographs that balances compression against loss of detail in the image. The greater the compression, the more information is lost (this is called Lossy compression).
A compression algorithm that reduces file size by actually removing data from the image. The post-compressed image is different from the pre-compressed image, even though they may look
identical (visually lossless)
TIFF(Tagged Image File Format) An lossless uncompressed image file format that produces no artifacts as is common with other image formats such as JPG.
ArtifactsA visible defect in an image, usually caused by limitations in the input or output process (hardware or software).
Visual digital effects introduced into an image by electrical noise during the capture process or over-compression that do not correspond to the original image being scanned. Artifacts might include pixellation, dotted or straight lines, regularly repeated patterns, moiré, etc.
Aspect Ratio = Width/Height
Digital Image Aspect Ratio = 4/3 = 1.33
Monitor Aspect Ratio = 800/600 = 1.33
HDTV Aspect Ratio = 16/9 = 1.77
4x6 Prints Aspect Ratio = 6/4 = 1.5
640/480 = 1.33
400x300 Pixels
Aspect Ratio=1.33
6x4 Inches
Aspect Ratio=1.50
Mystic Color Prints: 5.3x4 Inches
Aspect Ratio=1.33
Settings
Mode Dial
Quality
Resolution
Others: Set to Auto
Click for Settings in a Word document
Number of pictures (64 Mb CF Memory)
Resolution
Quality Setting Compression 1600x1200 640x480 (Hi-Res) (VGA)
Hi (tiff) None 11 -----
Fine (jpeg) 1/4 64 400
Normal (jpeg) 1/8 128 800
Basic (jpeg) 1/16 257 1600
File Size of Pictures
Image File Size: 1600 pixels x 1200 pixels x 3 bytes/pixel x 0.15 (15% jpeg compression) = 864 K bytes
Web
www.geocities.com/digitalcamera14
www.imaging-resource.com
www.dpreview.com
www.megapixel.net
www.shortcourses.com
Photo Tip #2
If your camera has a continuous or burst shooting mode, use it to get a better picture. A half smile could be better than a quarter smile.
Camera to Computer
Transferring Images
Organizing Photos
Viewing Images
Resize & Email
Printing Photos
Photo Tip #3
Use the self timer on your camera to reduce camera shake. Set the timer to 2 seconds – enough time for the camera to be steady after shutter release.