flash lamp
Học thuậtThân thiện
Definition
Noun: A portable electric lamp that produces a brief, intense flash of light. It is used to provide illumination when taking a photograph, especially in conditions where there is not enough natural or ambient light.
Usage
A flash lamp is a device used in photography. It is typically attached to or held near a camera. When a picture is taken, the lamp emits a very bright light for a very short duration (a flash) to illuminate the subject. This helps create a properly exposed photograph.
Examples
- Noun:
- The photographer used a powerful flash lamp to capture the indoor ceremony.
- For portrait photography, a diffuser is often placed over the flash lamp to soften the light.
- Modern cameras often have a built-in flash lamp, but professionals usually prefer external ones.
Advanced Usage
- "To fire the flash lamp": To activate or trigger the flash lamp to produce light.
- The flash lamp fired automatically because the room was too dark.
- "Flash lamp synchronization": The technical coordination between the camera's shutter opening and the instant the flash lamp emits light.
- Proper flash lamp synchronization is crucial to avoid dark bands in the photo.
Variants and Related Words
- Flash (noun): A common shortened form for "flash lamp" or the burst of light it produces.
- I need to buy a new flash for my camera.
- Flashgun (noun): Another term for a flash lamp, especially one that is not built into the camera.
- He mounted an old flashgun on his vintage camera.
- Strobe (noun): A lamp that produces regular, rapid flashes of light, often used in studios or for special effects. While similar, a strobe is not typically a single, synchronized flash for a still photograph.
- The disco lights included a powerful strobe.
Synonyms
- Speedlight: A proprietary term often used for a specific type of portable, electronic flash lamp.
- Flash unit: A general term for a device that produces a photographic flash.
Related Phrases
- "Bounce the flash": To point the flash lamp at a ceiling or wall so that the light reflects onto the subject, creating softer, more natural-looking illumination.
- Instead of pointing it directly at her face, try to bounce the flash off the white ceiling.
- "Red-eye reduction": A feature on some flash lamps that emits a series of small pre-flashes to cause the subject's pupils to contract, reducing the "red-eye" effect in photos.
- Make sure the red-eye reduction mode is turned on for the group photo.
Noun
- a lamp for providing momentary light to take a photograph