2, absolutely, those intelligent preset settings are originally set for convenience and speed, and there is no essential difference from the setting of M file.
3, there is no best, only more suitable. Generally speaking, AV aperture is used to control the depth of field first to highlight the subject. When shooting dynamic things, use the shutter as much as possible to freeze fleeting moments. When shooting a clear night scene, generally use M file. Because the shutter is too slow and the light is not good, it is not easy to focus. This is an automatic gear, so the manual gear is easier to control. All this is based on understanding the relationship between aperture shutter and iso.
4. The plus sign is used to adjust the exposure compensation. This is a relatively fast method to adjust the exposure brightness. Of course, you can also adjust the exposure brightness by adjusting the aperture, shutter or iso. The essence is the same.
5, 8 "means that the shutter speed is 8", and the shutter value can range from a few thousandths of a second to tens of seconds, and 8 "is normal. You can set it for a few seconds, that's what you set. The intelligent recommendation of camera metering is generally accurate, but you are the person who controls the camera, so you can adjust it at will. As long as you are using TV, M or TAV files, you can adjust the shutter speed at will.
To learn photography, we must first study the instructions. Don't understand the concept of Baidu, generally have a detailed explanation. That's what I did when I first started learning photography. Be sure to be familiar with camera control and photography principles, so that you can use them flexibly when taking pictures.