Tuesday, February 26, 2008

Proccesing Images With RAW

Written by Sabina


A raw image file contains unprocessed or unmodified data straight from the camera’s sensor. A raw file obtained from a digital camera is the equivalent of the negative image of film photography, it has all the necessary information to create an image. In the past, only expensive professional cameras were able to save images in a raw format. Nowadays, more and more digital cameras offer you this option. By saving your pictures in raw format, you will analyze the image taken and make the necessary adjustments. By comparison, by saving a picture in a compressed format (JPEG), you let the camera’s internal algorithms deal with the image’s characteristics. By choosing to shoot raw, you can use editing software (such as Adobe Photoshop) to set the image’s settings: white balance, tonal range, contrast or the amount of sharpening.

In conformity with the camera used to take the picture, the resulting raw file will have different extensions: .nef (for Nikon cameras), or .crw (for Canon cameras). You can use import the raw formats from many camera manufacturers into Adobe Photoshop for further editing. Adobe Camera Raw (ACR) is the Photoshop’s component which allows you to process the raw files.

When you start editing a raw camera file, Photoshop does not alter the initial file content. After you have performed the desired modifications, you export the edited image and in this way the original remains unchanged.

You can open raw files with both Adobe Photoshop and Adobe Bridge, as they have the identical Camera Raw dialog box.

You can check out this website:
Processing images with Camera Raw


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Friday, January 18, 2008

RAW Files with Adobe Lightroom

"Why do we read so often that it is best to shoot your images in RAW and not as jpegs?"


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