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。

youdao

This is a digital camera. It's actually a storage media, with a LCD display and USB Interfaces, and functions such as storage, tuning, digital zoom.

这是一台数码相机。它简直就是一个可以储存的媒体，有液晶显示屏和USB接口，功能有储存、画质选择和数字变焦等等。

youdao

Pixels, memory, optical and digital zoom, camera size and cost are all factors to compare.

像素、存储、光学及数码变焦相机体积和成本等因素比较。

youdao

The Coolpix 4800 has a resolution of "only" four megapixels, but they do toss in an 8.3x optical zoom lens (it's actually the smallest digital camera with that much optical zoom), which is nice since once most consumers realize they don't need more than four or five megapixels stuff like optical zoom and lens quality is going to be become a bigger and bigger deal.

ENGADGET: blogger-avatar

The 2x optical zoom is equivalent to a 32mm-64mm lens on a standard 35mm camera, and a 3x digital zoom will help the shutterbug zero in on faraway details.

FORBES: Ten O'Clock Tech: New Digital Camera Uses Tiny Memory Card

The slim, super-stylish Cyber-shot WX300 camera is the world's smallest and lightest digital still camera that packs a powerful 20x optical zoom range.

ENGADGET: Sony brings Cyber-shot HX300, WX300 and TX30 to the US with fast autofocus