Exposure compensationWritten by Jakob Jelling
The digital camera is in reality a great possession with many facets of its utilities and not only that knowing these utilities makes understanding digital camera complete. The utilities are also so very diverse that they too offer further introspection of details in their varying applications. Such an area is digital camera exposure compensation. Only knowledge of digital camera exposure is not enough, so digital camera exposure compensation requires some amount of exposure in itself! This discussion is focused towards that cause itself.
Looking at different digital cameras, even temperately costing digital cameras have arrangements for exposure compensation settings. To explain in a bit detail, exposure compensation allows users to control amount of light entering lens. And thereby illumination of photograph is decided. Exposure compensation can be altered manually or by help of a digital camera's exposure compensation setting that lets one override metered exposure set inside digital camera itself. Strictly speaking, exposure values provide an expedient line of attack to put a figure on available light intensity and therefore exposure.
As per general norms of users of digital cameras, certain standards exist for selecting such values. These values are specifically known as Exposure Values (EV). Selecting an up to standard Exposure Values (EV) helps maintain details contained in dark areas of a photo, or diminish more than usually bright areas. Again, looking from technical point of view, Exposure Values are numbers that refer to an assortment of combinations of apertures of lenses and shutter speed respectively. They have a selective range of values, ranging between -2 to +2 Exposure Values (EV). As a general rule positive exposure settings are used for cases where bulky areas of a scene are especially bright such as taking pictures of a snow scene and also during times of photographing when background is a good deal brighter than focal area under consideration. Also, negative exposure settings are used for cases where bulky areas of a scene are especially dark and also during times of photographing when background is a good deal darker than fore area under consideration.
Digital camera auto exposure and auto focusWritten by Jakob Jelling
The digital camera being a fantastic and technologically advanced device contains many different applications of its own. Many users of this fabulous device are unaware of quite a few of these functions which can actually do wonders. And it is duty and right of every person possessing digital camera to intervene into depths of knowledge to understand their prized possession and their varying qualities in order to foster true respect that this device deserves. This article deals with providing information regarding one those qualities - Auto focus and auto exposure!
Exploring information in slight more details it can be stated that auto exposure cameras are provided with a fixed focus lens or manual focus lens. These cameras are simplest to set exposure. To obtain correct exposure for a particular subject of photography, only thing that needs to be done is to simply lock exposure by pressing shutter down halfway on digital cameras upon a reference object that is about one fifth gray and also illuminated by aid of same source of light as subject of photography. After locking exposure, photographer has to recompose frame and shoot picture. Auto exposure and auto focus cameras are to some degree harder for setting exposure, because they contain exposure lock that is generally tied to focus-lock. However, users or photographers using these auto exposure and auto focus cameras can still make adjustments for correct exposure and correct focus using digital cameras and make photographs perfect! Again, exposure can be adjusted by locking on an 18% reference that is illuminated by aid of same source of light as subject of photography. The users have to only ensure that distance to this so-called reference is same as distance to subject of photography that actually sets focus.