b shutter speed?
Question by georgia_1234567890: b shutter speed?
hey what is the B shutter speed?
whenever i am wanting to take a photo that doesn’t have enough light, i go for the B shutter speed, yet my negative always turns out over-exposed (“black” negative, therefore a “white” photo)
how do i avoid this? my camera only goes up to 2 seconds, and i feel the B shutter is my only option for low-level light photography
sorry, but i dont really understand the “logic” behind the b-shutter speed.
how can I be sure that say, 30 seconds will produce a good image, to say 5 seconds? without overexposing any of them.
i dont understand how to not over-expose with the B shutter speed.
PS: what is a cable release? ill be sure to use a tripod
Answer by frivologs
if it goes up to 2 seconds, you should time (with your watch, a timer, etc.) how long you want to expose for exposures greater than 2 seconds. With proper exposure, even using B, you should be able to get good pics. Trial and error is the way to go. After you attempts, you will find out what might be the right exposure. Of course, if you don’t have any aids (light/exposure meter) you will bracket–take a few shots that you think are underexposed and a few you think are overexposed then check out the results.
What do you think? Answer below!
Tennessee v. John T. Scopes Trial: Dayton, Tennessee
Image by Smithsonian Institution
Description: Taken the month before the Tennessee v. John T. Scopes Trial. June 1925
Creator/Photographer: Watson Davis
Medium: Black and white photographic print
Dimensions: 3 in x 4.25 in
Persistent URL: http://photography.si.edu/SearchImage.aspx?id=5296
Repository: Smithsonian Institution Archives
Collection: Tennessee v. John Thomas Scopes Trial Photographs – During 1925, Watson Davis (1896-1967), Science Service managing editor, took numerous photographs while covering the State of Tennessee v. John Thomas Scopes trial as a reporter. In what was dubbed "The Trial of the Century," Scopes was tried and convicted for violating a state law prohibiting the teaching of the theory of evolution. William Jennings Bryan served on the prosecution team, and Clarence Darrow defended Scopes. Almost eighty years later, the nitrate negatives, including portraits of trial participants, and images from the trial itself and significant places in Dayton, were discovered in archival material donated to the Smithsonian by Science Service in 1971. Marcel C. LaFollette, an independent scholar, historian and Smithsonian volunteer uncovered these rare, previously unpublished photographs of the 1925 Tennessee vs. John Scopes "Monkey Trial" in the Smithsonian Institution Archives (SIA). In 2005, SIA restored fifty-two of the negatives with funds granted by the Smithsonian Women’s Committee. Included here are thirty-nine of the images. All images belong to the Record Unit 7091: Science Service, Records, 1902-1965 collection of SIA. All photographs were taken by Watson Davis, Managing Editor of Science Service, while he was in Dayton, Tennessee, June 4-5, 1925, and July 10-22, 1925. LaFollette identified and dated each of these images, and has published a new book highlighting these and other images from the trial entitled, Reframing Scopes: Journalists, Scientists, and Lost Photographs from the Trial of the Century, University Press of Kansas, 2008.
Accession number: SIA2008-1124
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