Photography

Bulb (photography)

The Bulb setting (abbreviated B) on camera shutters is a momentary-action mode that holds shutters open for as long as the photographer depresses the shutter-release button. The Bulb setting is distinct from shutter's Time (T) setting, which is an alternate-action mode where the shutter opens when the shutter-release button is pressed and released once, and closes when the button is actuated again.

Also on this shelf

See also

• ▸Augustus Frederick Sherman
• ▸22 Andromedae
• ▸Bronica

Uncatalogued shelf

Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.