What does SLR door B mean?

What does SLR door B mean? This is actually slang in photography, which refers to a shortcoming of some camera brands. Door b refers to the battery door behind the camera. For some brands of cameras, the door design is not strong enough, which will lead to easy loosening after a period of use, resulting in poor battery contact or the camera can not be turned on normally. So when someone mentions the SLR B door in the forum or social media, it means this defect of the camera.

Although the SLR B door is a defect, it does not affect users who like these brands of cameras. Because SLR cameras have better picture quality, more powerful performance and better feel than ordinary cameras. For some photographers, the defect of the B-door is only a minor problem. What they value more is the performance and quality of the camera itself.

So is there any solution to the defect of SLR B door? Of course there is. Generally speaking, we can use some convenient methods, such as adding a cushion between the battery door and the battery with cardboard and other materials, which can make up for the defects of the B door, ensure the close connection of the battery door and avoid poor battery contact. However, this method is not very reliable. For those who love photography, it is recommended to choose a reliable brand camera to avoid such problems.