Copy Photography
Traditional flatbed scanners work very well for capturing images, documents, and other flat media of a certain size, but there may be times when it is not possible to capture an image of an object with a scanner due to irregular shape, large size, location etc. The largest flatbed scanners typically have a scanning surface of 12” X 17”. Overhead scanners do provide some capability to scan larger or three-dimensional objects but they are often prohibitively expensive for some, particularly smaller organizations with limited resources. A digital camera can be a cost-effective way to capture images that cannot be scanned with a flatbed scanner.
When selecting a digital camera, it is a good idea to buy the best that your budget will allow. One of the most obvious specs to consider regarding digital cameras is Megapixels. Digital images are composed of tiny dots called pixels. One Megapixel equals 1 million pixels. The following chart gives a frame of reference for how the Megapixel count of a camera affects the image quality:
|
Pixels
|
Megapixels
|
Max Print Size at 300dpi (Inches)
|
|
640 x 480
|
.3
|
1.6 x 2.1 (good for web, email, and powerpoint only)
|
|
1024 x 768
|
.8
|
2.6 x 3.4
|
|
1280 x 960
|
1.2
|
3.2 x 4.3
|
|
*1600 x 1200
|
1.9 ~ 2
|
4 x 5.3
|
|
2048 x 1536
|
3.1
|
5 x 6.8
|
|
2272 x 1704
|
3.9 ~ 4
|
5.7 x 7.6
|
|
2304 x 1728
|
3.9 ~ 4
|
5.8 x 7.7
|
|
2560 x 1920
|
4.9 ~ 5
|
6.4 x 8.5
|
|
2592 x 1944
|
5.0
|
6.5 x 8.6
|
|
3072 x 2048
|
6.3
|
6.8 x 10.2
|
Find by Subject
Find by Type
