Can I use bracketing exposure when shooting door B in photography?

To explain this problem, we must first figure out what is door B and what is peripheral exposure.

Gate B is a photography mode other than the traditional four modes (A, S, M, P) of digital cameras. You can think of it as an extension of M-file. In B-door mode, you can either [adjust] the aperture or [control] the shutter speed (like M? Haha, it's different, really different. Pay attention to the difference between words enclosed by "[]" symbol). At m, your shutter speed can only be accurately adjusted at 1/8000 seconds -30 seconds (the adjustable range of different cameras is different). Door B means that if you hold down the shutter button, the shutter will open, and if you release the shutter button, the shutter will close.

Peripheral exposure is: Press the shutter once, and the camera will automatically take photos with three Zhang Mingliang exposures. The first EV (exposure compensation) will be reduced by one level (hereinafter referred to as A-), the second EV will be normal (hereinafter referred to as A) and the third EV will be increased by one level (hereinafter referred to as A+). Then, by using a fairly repetitive operation method, the three photos are combined into one. The principle of combination is that in A,

Back to the question, B-gate and bracketing exposure are two different concepts (or techniques). The former only produces one image in the process, while the latter actually produces three images first and then synthesizes one.

I have never seen or heard of such a function at present! ! (It is not ruled out that camera companies with anomalies in the future will produce abnormal B-door closed exposure cameras. )