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.
Digital camera macro modeWritten by Jakob Jelling
The digital camera is a wonderful device that allows a diverse variety of applications with its even diverse spectral collection of utilities. As technology progresses it brings along with it those intense pleasures that human beings have only thought of. Now digital camera has opened up dimensions for people and photographers in providing with liberty of capturing whatever they wish and of whatever type they prefer! Well magic words are macro mode. Although words might seem to be a bit deceiving they have really a great application in field of digital photography and digital camera as a device. In general digital camera macro mode allows a digital camera to photograph close-up pictures of petite objects like flowers, insects, coins, etc. Macro mode potentiality vary from camera to camera but almost all digital cameras offer this exclusive feature to enable users to widen up their imaginations and their weirdest fantasies in creating art.
Extending discussion further we can state that just about most of digital cameras has a macro mode. Each of these digital cameras can be verified of having macro mode because for each of them one of menu buttons will have an icon of a flower on it. This is macro mode button invariably. And thus has specific technology built in. The macro mode button, when pressed, switches camera into a special close focus mode and many allow photographer to shoot less than 10cm from picture subject. Many cameras of reputed companies like Nikon and Ricoh allows users to be as close as 3cm from picture subject that permits barely credible close ups of tiny objects such as little insects. The macro mode has a greater variety of applications in security measurements too. At times macro mode may be also useful for making photographic records of priced jewels for insurance purposes in order to prevent theft and fraudulent activities.