Canon EOS Digital Rebel Livre blanc - Page 10

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Également pour Canon EOS Digital Rebel : Manuel du logiciel (13 pages), Manuel d'instruction (19 pages), Brochure & Specs (22 pages)

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If you use the Dust Delete Data feature and do not want to change the data of the dust

coordinates, you can disable the default self-cleaning operation so it does not operate

when the power is turned on or off. If you want to stop the Dust Delete Data from being

appended to the images, the Dust Delete Data must be erased with the [Clear all camera

settings] menu item.

DPP Ver. 2.1 had the copy stamp tool for manually selecting and erasing round dust

spots. This feature has been improved with the DPP Ver. 2.2 which can use the Dust

Delete Data to erase the dust spots automatically.

When an image contains Dust Delete Data, the automatic dust spot erasing process acti-

vates by starting the copy stamp tool and pressing the [Apply Dust Delete Data] button.

With DPP Ver. 2.2, the dust spots at the locations specified by the Dust Delete Data are

Digital Photo Professional Ver 2.2

New High-Precision

The Digital Rebel XTi has the same 9-point AF sensor and

9-Point AF System

AF unit as the EOS 30D, including the sophisticated dual-

precision cross-type sensor in the center AF position.

This represents a very substantial upgrade from the

Digital Rebel XT. The XTi is the first entry-level EOS Digital

camera to have an enhanced precision cross-type, center

AF point compatible with f/2.8, a feature unique in its

class. The XTi has some significant AF performance

improvements over the Digital Rebel XT. For example, the

XTi has the same wide-area focusing as the EOS 30D.

With an f/2.8 or brighter lens, the center AF point detects

focus with the f/2.8 light flux. The base line of the center

AF point's vertical-line sensitive sensor is twice as long

as that of an AF point compatible with f/5.6. This makes

focusing detection more precise.

Additionally, the center AF point has a vertical-line sensitive sensor compatible with

f/5.6. Therefore, cross-type focusing is possible with any EF lens. The center AF point's

horizontal-line sensitive sensor for f/5.6 has a two-line, zigzag pattern. This redundancy

of focusing methods makes focus detection more consistent. As in the case of the EOS

30D, fine-tuning has been incorporated to improve the AF precision. Focusing perform-

ance under low light has been improved by 1 stop and is now possible from EV -0.5 to

III. FEATURE DISCUSSION

detected and erased if doing so is

deemed effective. This modest bit of arti-

ficial intelligence will be appreciated by

anyone who has done a little spotting or

retouching because certain things (and

it's often difficult to figure out just which

ones) look worse after they've been

repaired and are better off left alone.

6.0

3.6