求翻译：我们现在只是要通过产品上的画面定格，放大，缩小，自动变焦等按键，通过简单的Camera等图像预览的软件使电脑上预览的图像实现画面定格，自动对焦和数码变焦的功能。 最重要是使图像预览和拍照效果最好，如果能不使用外置的RAM最好，但如果为了图像功能和效果，必须使用的话，也可以，具体怎样实现应该关系不大是什么意思？

Just want the product on the screen freeze, zoom, shrink, auto zoom buttons, preview images on the computer screen freeze, auto focus and digital zoom function by a simple camera image preview software. The most important thing is the image preview and photograph the best, if you can not use externa

We are now just want to use the product on the picture and zoom in, zoom out, zoom, and press the key, such as through a simple Camera image preview of the software on your computer so that the preview of the image for pictures and the autofocus and digital zoom function. The most important thing is

We now only are must frame through the product on picture, the enlargement, reduces, pressed keys and so on automatic focal variation, the software which through images and so on simple Camera looks at in advance cause the image realization picture which on the computer looks at in advance to frame,

We now just want to through the analyser product, zoom in, zoom out, automatic zoom keys, by simple Camera image to preview software preview images on the computer screen hold, auto focus and digital zoom function. Is to enable the image preview and the most important camera works best, if not using

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