What parameters does Canon 7D adjust to make the product clearer?

You put the gear in the automatic gear or the P gear, press the shutter half, and the relevant data will be displayed on the screen.

Usually ISO is set to 100, and white balance is set to sunny (direct sunlight) and cloudy (even in shadow).

The aperture and shutter are set in harmony. In general shooting, the aperture can be set to 8 ~ 1 1, and the shutter speed in daytime is usually1/250 ~11000 seconds.

Other parameters can be changed as required.