Olympus E-3 Faq - Pagina 3

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What are the advantages of lenses that are designed specifically for

digital camera use?

Although the small size of the individual pixels in CCD, CMOS, and Live MOS image sensors

enables them to capture even more detail than film, the sensitivity of the sensor elements

is highly directional. That is, they respond best to light that strikes the elements straight

on. With lenses designed for use with film, the light rays passing through the periphery of

the lens strike the image sensor at an angle, and this tends to degrade picture quality at

the periphery of the image area.

On the other hand, lenses developed specifically for digital camera use are designed to

match the imaging characteristics of CCD, CMOS and Live MOS sensors, ensuring high

image quality at both the center and the periphery of the frame.

Is the E-3 body splashproof?

The construction and design of the E-3 features seals on all of the controls and ports and

around the flash component, making the E-3 body splashproof and dustproof. When used

with Olympus Zuiko

safely in dust storms, rain and snow.

What are the purposes of the different record modes?

Record modes allow photographers to quickly and conveniently vary the quality settings

used to capture and save images in-camera. While it is possible to always shoot at the

higher-quality settings and process the images into smaller file sizes later with a computer,

it may be more convenient in some situations to use other than the higher-quality settings.

For example, it may be preferable to shoot using a lower-quality setting when the shots are

intended for use on the Internet, where small file size is more important than rich detail.

The E-3 offers nine record modes, whose benefits are outlined below.

•

RAW: This is the highest-quality record mode available in the E-3, and it allows the

photographer the most creative control in post-production. Images are saved to the

memory card from the camera sensor with minimal image processing. Factors such

as white balance, sharpness, contrast and color are unchanged so they can be

modified later on a computer. Some photographers prefer to shoot RAW all the time

for all subjects, while others may shoot RAW in situations that pose complicated

exposure problems, such as wedding photography.

Each camera manufacturer has its own version of RAW tailored to its cameras;

therefore, special software is required to process RAW files and convert them to

other image file formats such as JPEG and TIFF. OLYMPUS Master

Studio

format, which bears the file extension *.orf. Third-party imaging software and

operating systems may use RAW plug-ins or upgrades to process Olympus RAW

files. Without them, they would not be able to read RAW images from Olympus

digital cameras. Most photo kiosks, printers and photo labs cannot read

unconverted RAW images.

•

JPEG: Four record modes in the E-3 create compressed JPEG image files. When

the camera processes a captured JPEG image and saves it to the memory card, it

uses algorithms to discard some of the data to make the file size smaller. The

process of mathematically reducing a file's size by discarding some of its data is

called compression. The greater the compression ratio, the more data will be

discarded and the smaller will be the file size. When the image is opened on a

computer, the JPEG algorithms reconstruct the discarded data.

Digital Super High-Grade and High-Grade lenses, the E-3 can be used

contain RAW processing and conversion software for the Olympus RAW

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Last updated on February 28, 2008