Traditional Culture Encyclopedia - Photography and portraiture - What's door B in the camera?
What's door B in the camera?
1。 If your camera can have a 30 "shutter (many small DC's now have a 16" shutter), there is generally no need to use the B door.
2。 Beyond the shutter limit of your camera (camera with B door), you need to use B door, such as exposure 1 minute.
3。 In the case of uncertain exposure time, you can use door B, such as shooting fireworks. Once the fireworks start, let him be exposed, then cover it with a lens cover, and repeat it when the next fireworks come out, so that multiple fireworks can appear in the picture.
4。 If you want to take a night view of the Great Wall, of course, there are no lights on the Great Wall at night. You can open door B, and then find some friends to walk along the Great Wall while flashing lights. Finally, it will be a spectacular night view of the Great Wall. .
5。 Some people mentioned that "you don't have to use door B in case of insufficient light, you can try to increase exposure with a large aperture", but considering that a large aperture will bring about insufficient depth of field, improving iso can improve sensitivity. Of course, you can't improve iso indefinitely, there will be noise.
- Related articles
- Online PCCW recruitment (Chongqing company will be established soon), what about this company! After graduating from college at the end of June, they said they would go to Shanghai for training in Jun
- After a day's visit to Suzhou, the family in Mudu Ancient Town really robbed money and was cheated by them. Have you ever been cheated to take ancient photos there?
- The Yongnuo 560 second generation flash shows low power after putting the battery in.
- Please talk about the usage of process.
- Necessary items for Yanjing Institute of Technology to start school.
- Hot spring resort: Go to the last pure land in the Philippines and explore the secrets of sunken ships and underwater.
- What do you mean by "in the prime of life"
- The story of a monk by the lake in Qinghai
- What material websites are there?
- Excuse me, Jinnan District, Tianjin. Is there a job fair? If yes, please tell me the specific time and place.