Epson PhotoPC 850Z Technical Brief (Digital Cameras) - Page 1

Contents This technical brief provides detailed information on the following topics, related to all EPSON digital cameras: Image quality Ease of Use Versatility M Megapixel CCD sensors M HyPict™ Image Enhancement Technology M Multiple resolution modes M EPSON ClearOptics Glass Lens M Image storage M Color LCD monitor M Full automatic to manual controls M File uploads and video output M Voice recording M Picture modes M PRINT Image Matching™ technology 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 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. Higher resolution produces greater detail LL 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 press)-many industry analysts believe that the quality of images captured with two megapixel digital cameras is good enough to replace traditional film-based cameras. 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 1152 x 864 pixels (1.09 million pixels CCD) 1280 x 960 pixels (1.25 million pixels CCD) Up to 5 x 7 inch enlargements Two Megapixel CCD 1600 x 1200 pixels Up to 8 x 10 inch enlargements Three Megapixel CCD 2048 x 1536 pixels Up to 11 x 14 inch enlargements One, two, and three megapixel cameras produce excellent 4 x 6-inch and 5x7-inch prints. The key difference lies in the quality of the image enlargements. EPSON Sales Training EPSON and EPSON Stylus are registered trademarks and Print Image Matching is a 5/01 trademark of Seiko Epson Corporation. PhotoPC is a registered trademark of Epson America, Inc. Other trademarks are the property of their respective owners.