What are the English abbreviations of Av, Tv, ISO, INF, AF and P in SLR cameras? thank you

The abbreviations of Av, Tv, ISO, INF, AF, P and P in SLR cameras are:

Av: aperture priority.

When Av aperture takes precedence, you can manually set the aperture size. After setting the aperture, the camera automatically sets the shutter speed after metering.

The advantage of Av aperture priority is that you can control the depth of field freely, such as large aperture, small depth of field and small aperture. Mostly used to shoot portraits.

Television: shutter priority

When the TV shutter takes precedence, you can set the shutter speed manually. After setting the shutter speed, the camera automatically sets the aperture size after metering.

The advantage of TV shutter priority is that the shutter speed can be set according to the moving speed of the subject, which is mostly used to shoot fast-moving subjects, or some special effects, such as slow waterfall, can produce a waterfall effect like satin or clouds.

ISO: sensitivity selection

Generally, 200 is selected, and the optional range of better SLR cameras is between 50 and 3600.

The lower, the finer the picture quality, suitable for shooting still life.

The higher the image quality, the greater the granularity, which is suitable for shooting fast-moving scenes.

INF: macro photography

At present, the macro function of consumer digital cameras is different, some are 10 cm-20 cm, and some can reach 1 cm-2 cm. For SLR digital cameras, the macro shooting ability is determined by the lens. Now almost every lens has macro function, but the macro function they refer to actually refers to the close-up ability of the lens. Generally speaking, the magnification of a lens must reach 1: 2 or even 1: 1 to be called a macro lens. Macro lens is the easiest macro shooting equipment to use, and users can use it immediately without adding any accessories. Generally, the highest resolution and contrast of a lens are displayed when the focus is at infinity, while the macro lens is just the opposite, and its highest resolution and contrast are displayed when the focus is at close range. So if you want to take high-quality macro photos, you must choose a macro lens. In order to meet different needs, there are macro lenses with different focal lengths in the market, ranging from 20mm to135 mm. A wide-angle macro lens is often used with a telescopic cavity. 20mm macro wide-angle lens combined with expansion joint can make the magnification as high as 5: 1- 12: 1.

Auto focus: lens auto focus mode.

P: programmable mode exposure control.