I am a novice photographer, and the photos I just bought with Canon 700 are not as good as my mobile phone.

The increase of sensitivity is ISO, 80.100.250,500, 1000. Don't set it too high under strong light. Use IOS80 or 100 for direct sunlight. If it really doesn't work, put it on the automatic gear first, and adjust the left-hand wheel and the green frame.

AV means aperture priority. Your camera now allows you to operate the aperture, and other parameters are determined by the camera processor. F is the size of the aperture. The smaller the value, the larger the aperture. That is to say, f2.0 is larger than f4.0, and the larger the aperture, the more light enters. If it is not good, it will be overexposed and the photos will be white.

Television means shutter priority. At this time you control the shutter speed of your camera. 1/2000 or 1/500 is the shutter speed. You know the score. The shutter opening time of 1/500 is longer than that of 1/2000, and more light enters.

In other words, if your sharpness is not high, the higher the sharpness, the clearer the point of the photo (the feeling of looking).

If these are all normal, it depends on the size of the photo, whether it is high pixels or not, and whether it is a camera problem.

Is your lens original?