"Best View Always Open Dilu Dairy Website Google Crome Brower"
"Wel Come To My Website -Press Ctrl+D to Bookmarks Our Site.."

Join My Whatsapp Edu Group

Search Your Subject This Blog

Saturday, May 2, 2020

CORONA VIRUS LATEST UPDATE PDF 2/5/2020 NI OFFICIAL PRESS NOTE

CORONA VIRUS LATEST UPDATE PDF NI OFFICIAL PRESS NOTE
CORONA VIRUS NI UPDATE MATE NI PDF NICHE LAST MA AAPVAMA AAVI CHHE.
The duration is called the shutter speed or exposure time. The longer the shutter speed, the slower it is. Typical exposure times can range from one second to 1/1,000 of a second, though durations longer and shorter than this are not uncommon.In the early stages of photography, exposures were often several minutes long. These long exposure times often result in blurry images, as a single object is recorded in multiple places across a single image for the duration of the exposure. To prevent this, shorter exposure times can be used. Very short exposure times can capture fast-moving action and completely eliminate motion blur.Like aperture settings, exposure times increment in powers of two. The two settings determine the exposure value (EV), a measure of how much light is recorded during the exposure. There is a direct relationship between the exposure times and aperture settings so that if the exposure time is lengthened one step, but the aperture opening is also narrowed one step, the amount of light exposing the film or sensor is the same

In most modern cameras, the amount of light entering the camera is measured using a built-in light meter or exposure meter.Taken through the lens (and so called TTL metering), these readings are taken using a panel of semi-conductors that are sensitive to light.They are used to help calculate the best exposure settings.These settings are typically determined automatically as the reading is used by the camera's microprocessor. The reading from the light meter is combined with aperture settings, exposure times, and film or sensor sensitivity to calculate the optimal exposure.

CORONA VIRUS LATEST UPDATE PDF 2/5/2020 NI OFFICIAL PRESS NOTE

Light meters typically average the light in a scene to 18% middle gray. More advanced cameras are more nuanced in their metering, weighing the center of the frame more heavily (center-weighted metering), considering the differences in light across the image (matrix metering), or allowing the photographer to take a light reading at a specific point within the image (spot metering).source : wikipedia

No comments:

Post a Comment

Follow Me By Your Email Id