It's mainly focusing on composition, and getting the most out of the camera.

（课程）主要讲的是构图，怎样充分利用最基本的相机功能。

youdao

The closest focusing distance for most cameras is about three feet, or about one step away from your camera.

大多数相机的最近焦点距离大约是三英尺，或者是离相机大约一步远。

youdao

If you get closer than the closest focusing distance of your camera (see your manual to be sure), your pictures will be blurry. Move it from the middle.

如果拍摄时相机太接近拍摄对象，低于相机的最近焦点距离(参阅手册确定)，则照片将会模糊不清。

youdao

'Round back, of course, you'll find that 8-megapixel auto-focusing camera, paired with a 1.2-megapixel one on the front.

ENGADGET: ASUS Transformer Pad TF300 review

With instantaneous focusing, the camera won't shake the moment the shutter is released, assuring maximum clarity and stability, even when shooting moving subjects.

ENGADGET: Olympus E-PL5 and E-PM2: Micro Four Thirds cameras with OM-D-like focusing, performance boosts (hands-on)

What really bewildered us was the lens continuously auto-focusing while the camera remained stationary -- that couldn't be good for the battery, and we'd like to see how battery life fares in upcoming reviews.

ENGADGET: Sony Alpha A390 and A290 DSLRs hands-on Hands-on