机电技术专业英语 教学课件 作者 徐起贺 张庆良pata a lesson Twentyfour.pptVIP

* 机电技术专业英语 Lesson Twenty-four Text Advantages of Digital Camera If you want to buy a digital camera, consider the following advantages instant image checking, no scanning, no film cost, and promoting a cleaner environment1. For just a minimal investment, you can enhance you pictures using digital technology. All you need is a digital camera, a basic computer, a photoquality printer, maybe some additional memory, and a removable media external drive. You’ll also need some imaging programs. You’ll be able to crop and get rid of dust marks and scratches, bleach, sharpen, soften, split tone, retouch color, and perform dozens of other functions including correcting perspective2. And do it so quickly and easily that your result will soon surpass those of conventional photographers who took years to learn their craft. Digital Camera Lesson Twenty-four Basic Requirements of Digital Camera Let’s talk about basic requirements of digital camera. Any digital camera that has a 640 by 480 pixels resolution would be a good start if you don’t need prints larger than 4 by 6 inches3. If you do require bigger prints, you have to up the resolution. For PC (personal computers) users, they will need a 386 or later processor, windows3.1, 95, 98 and at least thousands of colors; otherwise you should get an inexpensive video card. Aside from the printer, your monitor is one of the most important elements in the digital chain. So if you’re thinking of getting a new one, don’t skimp because you are going to spend many hours facetoface every day. In addition, you may find a CD ROM drive useful for these reasons; first, most programs are stored in CD ROM today. Next, there are some excellent multimedia CDs on a wide range of subjects, including photography that might interest you. Finally, you can play your audio CDs while you work—a nice plus. Lesson Twenty-four If you have an old, smaller hard drive, you may need some extra storage space for