What is b-door photography

The "B" of "B door" originally means light bulb in the dictionary, which refers to the spherical pneumatic shutter operated by hand or the flash bulb used for flash exposure in the past. However, a slightly creative photographer thinks that "B" is actually synonymous with infinity. "B-door" is different from other shutter speeds. Photographers can use it to control the shutter switch at any time except 1 second, thus entering the fantasy world. When you enter the "Brl" field of vision, you can see strange scenes other than traditional photos, such as the track of stars in the night sky, rainbow-like light and shadow, deserted street scenes and shining sky. operation requirement

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