What do the P, AV and TV files on the camera mean respectively?

It is a unique function of digital camera, which fully embodies the characteristics and advantages of digital technology.

Different from the automatic mode, the flash mode, white balance type, metering mode and focusing mode need to be set by themselves.

Television files: shutter priority automatic exposure

It is an automatic exposure mode in which the user sets the shutter speed value and the machine determines the aperture size according to the metering result and compensation.

Used for shooting moving objects or shooting occasions that need long exposure.

AV file: aperture priority automatic exposure

It is an automatic exposure mode, which is suitable for users to set the aperture value. The machine determines the shutter speed according to the metering result and compensation.

In which the depth of field needs to be controlled.

M gear: full manual gear.

It is the user who sets the aperture and shutter speed himself, and the machine does not participate in the opinion.

Extended data:

Misunderstanding of SLR camera purchase

Myth 1: If you buy a SLR, you have to buy a big brand, which is professional enough.

Don't be fooled by the words of some so-called senior SLR users. Now the competition in SLR market is fierce. As a novice, choosing the most cost-effective SLR is the wisest choice.

Myth 2: A good lens must be equipped with a good body.

What really makes the image quality of the SLR different is the size of the photosensitive element. Therefore, if you don't have enough money to buy a Quan Huafu SLR and pay great attention to the picture quality, you might as well buy a cheaper SLR with better lens.

Myth 3: SLR's head is rubbish, so it is wise to match a good lens.

Any SLR equipped with a ferrule can basically surpass the flagship ordinary digital camera in image quality. Only when you have very high requirements for image quality or special shooting needs, is it time for you to consider giving up the hood and starting with other lenses.

Extended data source: People's Daily Online-Choose a good SLR.