One limiting factor is the viewing Angle, which is comparable to using a camera lens: a telephoto lens has a narrower view than a wide-angle lens.

限制因素之一就是观察角度，这与使用照相机的情况类似：长焦镜头的视野比广角镜头的观察角度要窄得多。

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Believe it or not, this new digital camera has a wide Angle lens.

不管你信不信，这新的数位相机有广角镜头。

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The imaging system consists of a color video camera, an observation window and a turning mirror, a wide-angle collector and collimating lens, a video capture card as well as a portable computer.

该成像系统由彩色摄像机、观察窗和转向镜、广角收集和准直透镜组、采集卡和计算机组成。

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Packed with advanced imaging technology, the HTC TITAN II features a 16-megapixel camera with a wide-angle lens, autofocus, dual LED flash, red eye reduction, image stabilization, a backside-illuminated sensor and a physical camera button, offering a viable replacement for digital point-and-shoot cameras.

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Sharp, Clear 20x Lens: The FinePix F800EXR camera uses the FUJINON 20x Super Wide-Angle optical zoom lens that produces crisp high resolution results throughout the focal range, from 25mm wide-angle to 500mm telephoto, along with a Super Macro Mode that allow sharp focusing down to 5cm delivering the most brilliant detail possible.

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"I set up one camera with a wide-angle lens for a wide view of the whole cathedral, and another with a longer lens trained on the centre of the cathedral floor below, " says Lipinski.

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