Canon Digital Photo Professional (DPP) version 3.1 or higher software can then be used to manually or automatically erase the dust spots. By shooting a plain white subject, the photographer can acquire dust position data that is transmitted along with the image (whether JPEG or RAW). Dust particles can also be automatically removed via software. (It can also be manually activated.) A special collar positioned around the sensor collects the loosened dust. This Self Cleaning Sensor Unit routine is automatically activated whenever the camera is powered on or off.
Dust that settles on the sensor surface is removed using ultrasonic vibration. Photographers who must change lenses in dusty environments will find the advanced Canon EOS Integrated Cleaning System a tremendous time saver. This results in larger, clearer, sharper and more detailed photographs right from the start. The on-chip noise reduction electronics are also entirely new, and combine with the sensor's general design for less digital noise and better high-ISO performance than ever before. New manufacturing techniques mean each pixel is more sensitive to light, and less area between pixels is wasted on the sensor. The EOS 40D's CMOS sensor uses much of the new technology first seen in the EOS-1D Mark III camera.
#Canon 40d shutter count iso#
The EOS 40D has an extensive ISO range (from 100 to 1600, plus ISO 3200* in extended mode) which is selectable in 1/3 stop increments. 14-bit A/D conversion means fine transitions from light to dark tones, and a significant drop in digital and shadow noise. This APS-C size sensor (22.5 x 15.0mm) has the same 3:2 ratio as film cameras, enabling an effective angle of view that is 1.6x the normal EF Lens focal length. Canon's large-area CMOS (complementary metal oxide semiconductor) sensor captures images with exceptional clarity and tonal range, and offers the most pixels in its class.
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