A modern alternative is to use a camera with a very high-performance autofocus system and a zoom lens .
现在流行的选择则是一只拥有高性能自动对焦系统和变焦镜头的相机。
There 're three types of focusing guesstimate , rangefinder and autofocus .
有三种对焦方式猜估,用测距仪及自动对焦。
If you want it to work in all browsers just add the new html5 autofocus attribute , then detect if the browser supports autofocus .
如果你想所有浏览器都行得通,只需添加新的html5自动对焦属性,然后检测浏览器是否支持自动对焦。
Selecting focus windows is one of the key problems in realizing autofocus in digital cameras .
对焦窗口的选择是数码相机进行自动对焦的关键问题之一。
This paper analyzed the advantage and disadvantage of three sound wave focus methods , that is lens focus , curved autofocus , and phased-array focus on the base of draw lessons from supersonic focus technic , consequently preferred and designed the infrasonic phased-array focus system .
The new 3 megapixel autofocus camera includes an automatic macro focus for extra close up shots and a " tap to focus " feature which tells the camera to automatically re-adjust focus and exposure on a new area of interest .
" Iphone 3g s is the fastest , most powerful iphone yet and we think people will love the incredible new features including autofocus camera , video recording and the freedom of voice control , " said philip schiller , apple 's senior vice president of product marketing .
* Meet lytro , a mountain view-based startup that 's developed a camera that among other features , removes the need for users to manually focus or even use autofocus .