Mapping resolution from camera to printer, Camera resolution, P. 41) – Apple Aperture Digital Photography Fundamentals User Manual
Page 41
Chapter 3
Understanding Resolution
41
Mapping Resolution from Camera to Printer
Tracking the changing units of measurement from camera to display to printer is
confusing. But without an understanding of how resolution changes between devices,
you can inadvertently compromise the quality of your images.
Camera Resolution
A camera’s potential resolution is measured in megapixels (the number of millions of
pixels used to record the image). The larger the number of megapixels, the more
information is stored in the image. The reason a camera has a potential resolution is
that lens quality, the ISO setting, and the compression setting can affect the quality of
your image. For more information on how a camera operates, see Chapter 1, “
Digital Cameras Capture Images
The number of megapixels a camera is capable of capturing can be used to roughly
determine the largest high-quality print that the camera is ultimately capable
of producing.
Megapixels
Print dimensions at 200 dpi
Approximate uncompressed
file size
1
4" x 3"
1 MB
1
4" x 3.5"
2 MB
2
6" x 4"
3 MB
2.5
10" x 6"
7 MB
4
12" x 8"
12 MB
5
14" x 9"
15 MB
7
16" x 11"
21 MB