... Objective: Carl zeiss vario-Tessar, 3x zoom, 7,6 - 22,8 mm, 35 - 105 mm in 35-mm equiv., f/2,8 - f/5,5目的：卡尔蔡司Vario - tessar ， 3倍变焦， 7,6 -2 2.8毫米， 3 5- 10 5毫米，3 5毫米eq uiv。，男/ 2 , 8-/ 5, 5 Digital zoom: 2x数码变焦： 2倍 Stabilization of image: optical, Super steadyShot稳定的图像：光学，超级steadyshot ...
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The camera still shoots at 720p with a fixed optical zoom (but 2X digital) lens and attaches directly through its own USB connector.
VadoHD的视频规格依然只有720p，并且没有光学变焦功能，只支持两倍数字变焦，设备通过USB接口与外界连接。
Digital cameras generally offer 2x or 3x optical zoom, and digital zoom kicks in after you bump into to the limit of the optical zoom capability.
数码相机一般提供2倍或3倍的光学变焦，而且数字变焦是在光学变焦能力到达极限之后才立即起作用的。
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