Contents
This technical brief provides detailed information on the following topics, related to all EPSON digital cameras:
Image Quality—Megapixel CCD sensors
EPSON digital cameras include a one megapixel, two megapixel, or three megapixel CCD sensor, which determines the resolution of the images. Each megapixel contains one million pixels.
A CCD is made up of an array of photosensors (CCD elements or
photosites) that are able to record a unique image detail. Each Higher resolution produces greater detail photosensor (or CCD element) creates an electrical charge
proportional to the amount of light it receives and sends the charge to an A/D (Analog to Digital) converter inside the camera.
Because a higher resolution image contains more detail, you can:
▲ | Enlarge an image without losing a significant amount of detail. |
▲ | Print an image to a high resolution output device (such as an |
| EPSON Stylus ink jet printer or a printing |
| industry analysts believe that the quality of images captured |
| with two megapixel digital cameras is good enough to replace |
| traditional |
The key differences between a one megapixel, two megapixel, and three megapixel CCD sensor are:
Key Differences
Image resolution
Ideal use for images with low compression
| One Megapixel CCD |
| Two Megapixel CCD |
| Three Megapixel CCD |
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| 1152 x 864 pixels (1.09 |
| 1600 x 1200 pixels |
| 2048 x 1536 pixels |
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| million pixels CCD) |
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| 1280 x 960 pixels (1.25 |
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| million pixels CCD) |
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| Up to 5 x 7 inch |
| Up to 8 x 10 inch |
| Up to 11 x 14 inch |
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| enlargements |
| enlargements |
| enlargements |
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One, two, and three megapixel cameras produce excellent 4 x
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