Functions of a camera

All compact digital cameras have a small built-in flash , but that is not the ideal solution for every situation. Despite the many features that the flash has , it has a major limitation: it can not illuminate subjects at distances greater than 5 meters.
So do not try to photograph the Duomo at night, because there will be a photo completely dark , but do not even try to take your child to the school play if you are in thirty feet from him. Up close, however, the flash work pretty well today .

The features common to all cameras include the insertion of the flash in automatic , ie when the exposure metering machine detects low light. If you want to preserve a certain atmosphere , for example in a church lit with candles , you could also try to disable it.
Then there is the famous mode ” red-eye ” , to be used in portraits , and activates a series of pre flash to restrict the pupil of the subject before shooting. The flash is an accessory of great help, he can solve many situations . The important thing is not to forget its limitations and be familiar with the different settings , so enter it when it is appropriate . For example , most people do not azionerebbe never flash in a sunny day.

However, if you are doing a portrait to someone , you could choose a nice backlight that gives hair light and illuminate the face of the person with the flash . In this instance you a perfect combination of the two lights , able to offer effective results and quality . In the most sophisticated machines there is also the option of flash used with long exposures , which serves to illuminate the most of both foreground subject , thanks to the flash, and the background due to the shutter speed longer. In this case you will have illuminated both elements : the person and the landscape behind him.

Inside the functions of Digital Cameras

Functions of a cameraThe goal is definitely a point of particular importance. Now is always equipped with zoom and its focal length is indicated with the equivalent measure in millimeters used in traditional photography , or with the number of magnifications . In this case , it is better to be the first to say also given : knowing that the goal is 2x or 3x says little about its actual functionality , while knowing that the focal length is 38-114 mm , you can better understand the capabilities of the machine . Attention also an indication of optical and electronic zoom . The electronic does not provide a real focal , because it does not act on the angle of vision , but rather on the enlargement of the recovery, as you could do directly with a photo editing program .

This means that will be magnified and the pixels , resulting in a loss of quality. Some models provide macro mode , ie the function for close-up shots , even a few inches from the subject. Indicates the minimum distance of focus real flanked to the ” digital ” . Trust only the first , because the second is a simple electronic magnification of the image, which also leads to an enlargement of the pixels resulting in a loss of sharpness. The shooting distance indicated is achievable by setting the maximum telephoto and wide-angle lens that . The macro function is not essential , unless you have a strong passion for close-up shots of small objects or details. In general, it has a capacity of recovery from 20 inches down .

Several models are available recovery programs ready to use. In general, the most common concern , such as the portrait , shooting moving subjects or shooting a landscape . Selecting one of these modes, the camera sets the exposure time, aperture and focal length that ensures the best results that situation , without you having to do anything else. Those who wish to participate more “up close ” to the realization of the photo, it can instead focus on models that allow you to work on some parameters such as timing and diaphragms, or to change shooting under or intentional overexposure . These functions require a basic knowledge of photography, but if you start to have fun , you should do various tests to see what happens each time you change some parameters . The focus is always automatic and is based on well-tested systems in traditional photography .

If you want to make images more creative and personalized orientatevi on devices that have the ability to exclude auto-focus, so you can do it manually. To consider also the function related to white balance , provided that you intend to deepen your knowledge of photography . The light does not always has the same color temperature , and therefore can give rise to more or less dominant pleasing, due to both the time in which photographed, both to the presence of different types of artificial lighting . The camera compensates for the dominant fully automatically, without you knowing about it , but in some cases it is possible to intervene and choose the type of balancing suitable . The options range from artificial light to that neon type , from sunlight to that of a cloudy day . There is also the availability of the manual white balance , you can do at any time , inserting or deleting any kind of dominance.

Read More: Features of Digital Cameras


Clarify ideas

At this point , which machine to choose ?

Once you know the characteristics of which are equipped with various cameras , up to you to assess what you need and what is irrelevant. A little self-examination is essential to understand what you hear more, if the flash with a long time , or a macro mode more effective.
Other factors may reside in the ability to choose some program already set, or claim any automatism possible to simplify every shot. A final possibility would be that instead of trying only a camera that gives the possibility to acquire images from exchanging e-mail with friends, rather than just a companion to capture those special occasions. Forget the eye-catching advertisements and think with your head , maybe asking advice from a dealer you trust , explaining your real needs .

No one ever thinks , but also the size of the camera and its design must be taken into account in the assessment .

There are very small models that can fit in your pocket , and the other slightly more cumbersome . The machines very small, real jewels refined design, are fine if you are interested in having always with you, at your fingertips , almost like a visual notebook of notes . In contrast, can give some problem nell’impugnarle , and not always the various commands are well positioned , because the hands and fingers may be too large compared to the camera body . We suggest you try ” by hand ” before buying a camera , to see if you can handle it well. It is not a detail to be underestimated. Similarly, even the larger ones should try it, because you should always consider the location of controls and control what they are comfortable to reach.


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