Why is my 60D men's wear so gray? No details. Is it okay under the guidance of a professional teacher?

First, let me analyze the photos you took.

The first one is underexposed, so why is it underexposed? A: You shot it in black with a pure white background. You said "you use local focus" (I think you mean "partial metering"). Well, this will cause a problem-the background is pure white, the camera will think it is overexposed, and after metering, it will automatically lower the exposure value by one step, resulting in underexposure and lack of details of the black object you want to shoot.

The same is true for the second picture. Where can you tell it's underexposure? I'll teach you. Look at the back wall. Will it be a little grayer than the actual color? This is the correct exposure caused by underexposure. The walls should be pure white.

Ok, now let's solve the problem!

First of all, you need to add a side light source, which can brighten the part of the subject, so that the photos taken will have a layered feeling and will not be sloppy or white.

Second, turn on the flash when taking pictures, highlight the main details, and solve the problem of not seeing the details clearly.

Third, the camera uses spot metering to measure the light in the brighter part of the subject (except for the highlights and reflection areas directly illuminated by the side light source).

Fourth, use aperture priority mode or manual mode to open the aperture as large as possible.

Fifth, you can try shooting from different angles, but don't backlight.

There is a saying in photography that adding white and subtracting black. If you are shooting a pure black object, you should reduce the exposure by one step. The premise is that you use spot metering to directly measure the black object being photographed.