By Serge Timacheff
Veteran specialist photographer Serge Timacheff walks you thru the positive aspects of the Canon EOS DSLR digicam; deciding on, knowing, and utilizing lenses and components; and taking care of your apparatus. You?ll additionally get specialist perception into retaining your apparatus and construction your ability set. when you know the way to construct a images method that meets your wishes and observe which filters and add-ons are right for you, you can start to include all of the Canon EOS digicam approach has to provide.
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Extra info for Canon EOS Digital Photography Photo Workshop
This signal is then processed into the colors used in the final image, and the brightness of individual pixels is amplified or decreased. A common cause of digital noise is overamplification of the signal coming from the photosite. If the same pixel is exposed several times by the same amount of light, the resulting color values are not always identical but have small variations, resulting in digital noise. CHAPTER CANON PHOTO WORKSHOP / Choosing and Using a Canon Digital SLR 2 Noise in digital images, similar to film grain, is most visible in uniform surfaces (such as blue skies and shadows).
Also, the voltages needed to initiate the relay of charges across the CCD require more power than CMOS sensors. This demand for more power at longer shutter speeds creates more heat and, subsequently, more digital noise in the image. In addition, CCD-based camera batteries must be larger and they require longer recharge times. ■ CMOS sensors. CMOS sensors work in a similar fashion to CCD sensors but use less power and can process images much more quickly due to differences in design. While the CMOS architecture offers the advantages of low power consumption and high speed, the technology has inherent disadvantages in that it produces more noise.
15-second startup time. 5 fps continuous shooting ■ Buffer/maximum burst of 75 large JPEG images, 17 RAW ■ 3-inch, high-resolution LCD screen CHAPTER CANON PHOTO WORKSHOP / Choosing and Using a Canon Digital SLR 2 THE CANON EOS REBEL XSI Just announced as this book was going to press, the EOS Rebel XSi does to the Digital Rebel XTi what the XTi did to the XT: It takes a great camera even one step further towards perhaps being the perfect consumer dSLR, capable of producing astounding near-professional results.