Canon C12-6171 Panduan Servis - Halaman 11
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１） Image recording
⑴ L arge, single-piece CMOS sensor with approx.
10.1-megapixels
(=EOS DIGITAL REBEL XTi / 400D DIGITAL)
The same 10.1-megapixel
used in the EOS DIGITAL REBEL XTi / 400D DIGITAL is
incorporated. With an image sensor size of 22.2 mm ×
14.8 mm, the effective angle of view is approx. 1.6 times
the lens focal length.
＊Effective pixels.
⑵DIGIC III
（=EOS-1D Mark III)
While retaining the DIGIC II's features for fine image detail, natural colors, and high
speed, the new DIGIC III imaging engine attains faster signal processing speed.
⑶14-bit A/D conversion
The analog output signal from the imaging element is converted into a digital signal
with 14-bit (16384 colors) processing instead of the previous 12-bit (4096 colors). This
creates digital data with finer gradation.
With RAW/sRAW images recorded with 14-bit processing, you can use DPP to post
process and save the image as a 16-bit TIFF image. This brings out the maximum range
of colors afforded by 14-bit processing. Also, since images recorded in JPEG (8 bits per
color) are also generated from 14-bit RAW data, they have fewer blown highlights than
before and the gradation is excellent.
⑷Image-recording quality
In addition to the image-recording quality modes provided by EOS 30D, the new
small RAW
＊
is provided. Small RAW can also be recorded simultaneously with any
JPEG recording quality (Fig. 003). Table 002 shows the pixels for the respective image-
recording quality.
As with the EOS-1D Mark III, even if you open the CF card slot cover while data is being
written to the CF card, the data writing still continues with the EOS 40D.
＊ T he recorded number of pixels is about one-fourth that of a normal RAW image, and the file size is about half
the size of RAW.
Fig. 003 Image-recording quality
selection screen
＊
CMOS sensor (Fig. 002)
（=EOS-1D Mark III)
Image-recording
quality
Large
Medium
Small
RAW
sRAW
6
General Information
Fig. 002 CMOS sensor
(actual size)
Table 002 Recorded Pixels
Recorded Pixels
3888×2592 (Approx. 10.10 megapixels)
2816×1880 (Approx. 5.30 megapixels)
1936×1288 (Approx. 2.50 megapixels)
3888×2592 (Approx. 10.10 megapixels)
1936×1288 (Approx. 2.50 megapixels)