Exposure bias
Portuguese translation: Compensação de exposição
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| 02:32 Jun 29, 2005 |
| English to Portuguese translations [PRO] Photography/Imaging (& Graphic Arts) | |||||||
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|  Selected response from: Lincoln Silveira (X) Brazil Local time: 19:51 | ||||||
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| 4 +1 | compensação de exposição |
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| 4 | desequilíbrio de exposição |
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Answers
23 mins confidence: 
| exposure bias desequilíbrio de exposição Explanation: É assim que eu entendo. -------------------------------------------------- Note added at 32 mins (2005-06-29 03:05:23 GMT) -------------------------------------------------- Permite controlar a exposição. Ver: http://www.railpictures.net/forums/archive/index.php/t-696.h... http://www.rjoannej.com/Digital_Photography101/week_2/week2.... -------------------------------------------------- Note added at 35 mins (2005-06-29 03:07:40 GMT) -------------------------------------------------- Exposure Compensation Controls Exposure compensation or exposure correction (EC) controls provide an easy way to bias an exposure by 2-3 full stops up or down from the camera\'s metered aperture and shutter speed, usually in 1/2- to 1/3-stop increments. EC is particularly useful for manual bracketing and for overriding the camera\'s exposure theory in priority modes, where EC adjusts only the exposure setting left to the camera\'s control. In auto or program mode, EC again allows intentional under- or overexpose relative to the firmware\'s exposure strategy, but I have yet to figure out how the bias gets apportioned between aperture and shutter speed in auto mode. My Oly C-2020Z doesn\'t support EC in manual mode, probably because it doesn\'t make much sense in that context. What good is EC? For starters, many digital cameras behave like color slide film—the best images are often slightly underexposed, particularly when bright scene elements are present. EC is the fastest and simplest way to underexpose. In bright sunlight, my C-2020Z tends to do its best work at EC -0.3 or -0.7. With EC and a little effort, you can easily feel out your own camera\'s exposure sweet spots, but count on variation with photographic conditions, as dpFWIW contributor Tom Lackamp details in his take on digital exposure below. In landscape and close-up work, depth of field requirements typically dictate a specific aperture, but what if tonality requires an EV different from the one your camera deems appropriate? If the desired EV is less than 2-3 stops from the meter\'s EV, EC makes it simple to go there in aperture-priority mode without altering the aperture and without resorting to full manual exposure. http://dpfwiw.com/exposure.htm |
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4 hrs confidence: peer agreement (net): +1
peer agreement (net): +1| exposure bias compensação de exposição Explanation: Trata-se de uma função das máquinas que permite ajustar a exposição (v.g. o tempo em que o filme - ou o CCD, nas digitais - é exposto à luz) para compensar ambientes mais ou menos luminosos. Assim a pessoa pode se "livrar" daquelas fotos pálidas, esbranquiçadas (muita luz) ou das escuras e tenebrosas (pouca luz). ;) |
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