Epson digital cameras User Manual

Contents

This technical brief provides detailed information on the following topics, related to all EPSON digital cameras:

Image quality

Ease of Use

Versatility

▼

Megapixel CCD sensors

▼

HyPict™ Image Enhancement Technology

▼

Multiple resolution modes

▼

EPSON ClearOptics Glass Lens

▼

Image storage

▼

Color LCD monitor

▼

Full automatic to manual controls

▼

File uploads and video output

▼

Voice recording

▼

Picture modes

▼

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

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:

Image resolution

One Megapixel CCDKey Differences

1152 x 864 pixels (1.09

Two Megapixel CCD

Three Megapixel CCD

1600 x 1200 pixels 2048 x 1536 pixels
million pixels CCD)
1280 x 960 pixels (1.25
million pixels CCD)

Ideal use for images

with low compression

Up to 5 x 7 inch
enlargements

Up to 8 x 10 inch
enlargements

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 5/01

EPSON and EPSON Stylus are registered trademarks and Print Image Matching is a

trademark of Seiko Epson Corporation. PhotoPC is a registered trademark of Epson

America, Inc. Other trademarks are the property of their respective owners.

Technical Brief—Digital cameras Page 2

Image Quality—HyPict™ Image Enhancement Technology

Many digital cameras use an interpolation method to produce images with higher resolution than the camera's
CCD can capture. EPSON HyPict image enhancement technology uses an exclusive interpolation method.

EPSON HyPict image enhancement technology produces more
accurate results because it applies image enhancement before
JPEG compression.

▲▲▲

The EPSON HyPict image enhancement technology uses
an in-camera processing system to interpolate an image
using full image data.
After the image is interpolated, the camera then converts
it to JPEG file format.
Other image enhancement technologies convert to JPEG
file format before enhancement. Since JPEG conversion
removes image data, these technologies do not use full
image data for the interpolation, resulting in less accurate
images.

EPSON HyPict image enhancement technology
performs all of these steps in the camera:

1. Captures image

2. Enhances and interpolates image

3. Applies JPEG compression

Image quality—Resolution modes

EPSON digital cameras allows you to select different image quality settings. (Not all of these settings are available
for each model.)

The following chart explains the differences between the image quality settings:

Fine Standard

High compression High compression

Pictures include ample
detail and are suitable
for most applications,
including 4 x 6-inch
prints.

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e n t e r in g . P e r fe c t f o r

4 x 6 inches

5 x 7 inches

8 x 10 inches

Pictures include less
detail and fewer
number of pixels.
Suitable for on-screen
display.

➤

World Wide Web Browser

File

Open Preferences

➤

C L O C K S

A n ti q u e
S p e c i a l s

➤

Clocks
Tables
Cabinets
Rockers

➤

Sideboards

➤

None

None

None

Compression level

Description

Enlargement sizes:

One megapixel

CCD camera

Two megapixel

CCD camera

Three megapixel

CCD camera

HyPict™Key Differences

Interpolated

Pictures include the
most detail and are
ideal for
enlargements.

Up to 8 x 10 inches

Up to 11 x 14 inches

Up to 12 x 17 inches

Super Fine

Low compression

Pictures include great
detail because less
image detail is
removed through
compression.

Fall Colors!

Up to 5 x 7 inches

Up to 8 x 10 inches

Up to 11 x 14 inches

Image file size

Largest file size

Large file size

Moderate file size Smallest file size

Additionally, some EPSON digital cameras include a TIFF Uncompressed image quality setting, which does not
remove any image data through compression.

EPSON Sales Training 5/01

EPSON and EPSON Stylus are registered trademarks and Print Image Matching is a

trademark of Seiko Epson Corporation. PhotoPC is a registered trademark of Epson

America, Inc. Other trademarks are the property of their respective owners.

Technical Brief—Digital cameras Page 3

Image Quality—EPSON ClearOptics™ glass lens

EPSON digital cameras all use an EPSON ClearOptics glass lens, but the specific type of lens differs by camera
model. For example, the lens on the low-end model may include an aspherical glass lens with five elements in
four groups, while the high-end model may include eight
elements in seven group construction using two aspherical
lenses. The greater number of elements and groups, the
higher the quality of the lens.

EPSON ClearOptics glass lenses offer the following benefits:

▲▲

Overall sharper detail in the image
Sharp center and edge detail; digital cameras
with lesser quality lenses tend to capture images
with good center detail, but with "fuzzy" edges.

Sharp edge

detail

Sharp center

detail

EPSON Sales Training 5/01

EPSON and EPSON Stylus are registered trademarks and Print Image Matching is a

trademark of Seiko Epson Corporation. PhotoPC is a registered trademark of Epson

America, Inc. Other trademarks are the property of their respective owners.