Traditional Culture Encyclopedia - Photography major - Canon 550D What is the reason why the background I shot indoors is a little gray?

Canon 550D What is the reason why the background I shot indoors is a little gray?

The exposure is not accurate, and some of them are underexposed.

I don't know what lens you are. If it's a hood, you can't shoot that aperture indoors without a flash. If you have to shoot, please improve the ISO.

If you have a constant aperture lens (such as Longteng A 16, B005, Canon 24-70) or a fixed focus lens (35/1.4,50/1.8), you can take pictures even if there is no flash in the room. F2.8 constant aperture may sometimes be a bit difficult. Solved the camera's own problems, and the rest must work hard on technology.

Learn exposure first to understand the working principle of exposure meter and the concept of 18 gray. Understand regional metering, spot metering and Canon's own evaluation metering. And try to make up for my exposure. Finally, practice using the flash. It doesn't matter ~