Digital Photography 101 - What is ISO, shutter speed and aperture?

Deciphering Digital - An excellent article to read.

Digital Photography Details.

Digital Camera Reviews:

Each of these are excellent sites the have many digital camera reviews.

Digital Photography Details:

Cameras are like handheld scanners; CCD- Charged Coupled Devices- measures light intensity
  • Reflected light excites an "array"- Density of the grid = quality, more dots = less jagged

Digital's advantage from film is their ability to see color as the human eye
  • Cheap/so shoot as much as you want to get that perfect picture

Digital's disadvantage from film is their inability to handle radically different lighting
  • Film can compensate by using different film
  • Digitals' exposure system needs to have flexibility

Megapixel (million) is a measure of how many pixels the sensor uses to split-up, then reassemble
the picture. This helps determine the maximum size prints you can make.
You can print bigger, but you get "jaggies" Interpolation, fill in's. The picture looks grainy.

Suggested Resolution for print sizes. (From

Max Print Size
Minimum MP
4 x 6″
2 megapixels
1600 x 1200
5 x 7″
3 megapixels
2048 x 1536
8 x1 0″
5 megapixels
2560 x 1920
11 x 14″
6 megapixels
2816 x 2112
16 x 20″
8+ megapixels
3264 x 2468

Learning How to Take Digital Photos: -"Getting Started" has good articles
  • Comparometer - has comparison between cameras- look at different compressions/ test
  • great examples for understanding resolutions, tips, suggestions
Increase the DPI to account for editing later; "The more we start out with, the better."
  • Computer screen = 72 Pixel per inch Web = 256 colors
  • Printer - ink jet = 2880 Dot per inch (photo paper- glossy)
  • Printer- laser = 600 Dots per inch

Editing Resources:


Windows and Mac:

  • iPhoto


Publishing Resources: (Great resource to publish kid created books.)