Digital Camera with Maximum Results

Samsung NV20
In the digital world today, when a digital camera device is reaching all market segments, even laymen can easily become a professional photographer in the sense of photographers who get income from the pictures taken. Whether for personal interest or the interest of the media.
Technological sophistication and features a user-friendly embedded in the digital camera makes this product as a very practical device, but still capable of producing maximum picture quality. The latest digital cameras do not even have much of a choice model shots, but also equipped with image processing software.

Senior Photographer

But despite the digital camera technology has developed so far, not a few users who do not take advantage of features in it to the fullest. In fact, by understanding the function of each feature, the resulting picture can be more good and satisfactory.
Here are some features and technologies of digital cameras that can maximize the dailies:
• LCD display
The greatness of the most prominent of a digital camera is the LCD screen (liquid crystal display) integrated. Size continues to have an enlarged until it reaches 3 inches more, and has entered the era of touch-screen. By always monitoring each new target image, you can conclude whether the picture was taken in accordance with the desired, both in terms of image sharpness, color and light inputs as well as its focus. If not appropriate, you can immediately take the next picture.
• Optical Zoom
One of the advantages of digital cameras that have not owned by a range of mobile phones with cameras is optical zoom feature. With this feature, you will be more flexible in choosing without fear of taking positions that target object would be too far or near. Although the camera phone can do the same with digital zoom facility, but the quality will be much reduced because the digital zoom is just cut the picture (cropping) on a single focal object.
• Pre-focus
Digital camera is not too responsive in recording the image. When the shutter button is pressed, it will take a few seconds to capture the target objects that it is often the result is not in accordance with the desired, especially for the case of moving objects. This can disiasati by pressing the shutter button half. When the object is expected arrive, you can get the right shot.
• Flash (Flash)
Usually, in automatic mode, the camera may respond to the atmosphere around the object does need the flash or not. But to get a more complete picture, you can use the flash manually, especially for taking pictures indoors or in low-light.
• Resolution Image
While a camera has high resolution, you are still able to set the results to the low resolution images. When you take pictures for online purposes, the resolution butuhnya usually not too big, just 600 × 400. Smaller resolution automatically have a small file size (around 55 KB), so that more images can be stored in camera memory.
Information about the function and sophistication of a digital camera you can usually get from the camera vendor. The more sophisticated a camera, usually will be more easier for users in the operation. One camera that provides a myriad of features and convenience are the Samsung NV20 camera is sleek and elegant appearance with a cast stainless steel black glossy design royal blend of retro and modern classic.
The most important ease owned by the 12-megapixel resolution camera is the touch-button “Smart Touch” at around 2.5-inch LCD screen, so that arrangements can be made only with the touch of a finger.
Samsung NV20 is equipped with 3x optical zoom, vibration-reducing features, automatic contrast balance, noise reducer, face detection technology and MPEG4 video recorder TV quality 30fps quality. This camera also has a capacity large enough thanks to 20MB of internal memory.
To get the natural ambience when shooting in a room, can use the features of Fast ASR (Advanced Shake Reduction) which is in the camera. Fast ASR technology serves to eliminate image degradation caused by shock or flash.
Another excellence of the camera Schneider-Kreuznach lens have the technology Cotrast Auto Balance (ACB), which automatically eliminates brightness into the camera so the picture with light backgrounds are no longer a problem. In addition, the charger can do NV20 battery charging with a laptop or desktop computer through USB connection.

The link between ISO and noise in digital photography

For starters, just so-so recalled that the basic photography is to play with light, which more or less light is captured by the camera is influenced by how the shutter speed and size of diaphragm opening. In the era of film photography is known as ASA score indicating the sensitivity of the film the film to light. The term ISO in digital photography (referring to the ISO 12232 standard) such as ASA was equivalent to the film, which in this case the value stated ISO sensitivity sensors in digital cameras.

CCD sensor
Sensor, whether CCD or CMOS, is a major component of a digital camera, which is a piece of silicon chip composed of millions of light-sensitive pixels. At the time the picture comes from the lens of the sensor each pixel will capture light energy to come and turn it into a voltage signal magnitude. How sensitive sensor capable of capturing light that is expressed by the ISO scale. Each sensor has a base ISO values / normal ISO sensitivity is the lowest value of the censor is generally equivalent to ISO50 to ISO200 (depending on type and brand of camera). On the value of this normal ISO sensitivity to light sensor is at the lowest level that is needed enough light to get a photo with the right exposure. Therefore the normal ISO generally used only when shooting outdoors in daylight.
To measure the light, call metering, the camera has a light meter system (light meter) that tells how much light will enter the sensor. If the light received by the sensor is too low (sometimes the camera gives warning in low light the LCD screen) then the option exists to keep exposure is to increase the diaphragm, slow shutter, and / or increase the ISO value. In compact cameras are all automatic, shutter and diaphragm value will be determined automatically by the camera based on the results of light measurements. If the condition is less light the shutter and diaphragm combination could not produce the proper exposure, then the ISO value should be increased. If the ISO on the camera mode is set to AUTO, the camera will increase the ISO value automatically. At that allows the camera to be set manually the ISO value, the value of a higher ISO can we choose in multiples of factors ranging from 200, 400, 800, 1600 to 3200. Even now the latest digital cameras began to offer the ability to ISO 6400 extra high sensitivity.
It should be noted that the value of a higher ISO also allows shooting with a shutter speed faster. This is because the high ISO to give a high sensitivity so the camera does not require much light to get proper exposure. Shutter speed is useful to make a moving object appears to be silent. Term, freezing objects (see comparison picture at right). Use a low ISO (eg ISO 100) will make the shutter is fast enough (eg 1 / 20 seconds) to be able to capture the child’s movements. By raising the ISO (eg ISO 800), obtained the value of a faster shutter (eg 1 / 160 second) so that the child was still visible. Sometimes the camera is not equipped with stabilizers, the use of high ISO can also be utilized to prevent a blurry picture. With high ISO is expected to hand-shake is usually prone to motion blur can be avoided because of a faster shutter.
Unfortunately increasing the ISO will also bring negative effects of unwanted. Increasing the ISO sensitivity of the sensor is increased, so that weak signals can be strong. The problem is, the sensors work processes also generate noise that accompanied the original signal. If the ISO is increased, the small initial noise will also be a high. High noise would disturb the results appear and appear in the form of image dots of color are not good to see. These noise problems are more severe if the type of sensor used is a small sensor, such as commonly used in compact cameras. Why? Because of the small sensor size point / pixel is also smaller, and smaller pixels theoretically more susceptible to noise than larger pixels. Hence digital SLR camera produced better images at high ISO, because the DSLR camera sensor using a larger (and more expensive production costs).

Noise on the various types of cameras
What can be done to overcome the noise? First of course as much as possible avoid the use of the ISO too high. But if forced use high ISO, digital cameras today have a noise-reducing system (Noise Reduction / NR) which automatically tries to refine the results before saving the image into a file. Each brand has a camera ‘approach’ for this to overcome the noise. A trademark can be applied to a NR so that the image looks still a little noise but have better detail. Brand B could be used NR too much so that it generates images free of noise but the details go missing. Unfortunately until now there has been no method of NR is able to eliminate noise while preserving detail but with equally good photos. If it needs a lot of making photographic images using a high ISO, you should use a professional camera with a large sensor (2 / 3 inches, APS-C or even Full Frame) which has Signal to Noise ratio is good, so the effect of this noise can be reduced.
Conclusion
• The value of ISO in digital photography states that the sensitivity of the sensors used in digital cameras.
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• If the shutter and diaphragm settings still can not get the right exposure (usually in low light conditions) then it could try to raise the ISO value.
• In addition to shooting at low light, high ISO usage is also suitable to prevent hand-shake blur effect (if the camera does not feature stabilizer) or for high-speed photography, because the high ISO allows the use of faster shutter than a low ISO.
• Raising the ISO value will make the side effects of noise on the image.
• Method Noise Reduction (NR) can be used to reduce the noise that comes up, but ideally the NR still able to maintain detailed as possible so that images remain sharp.
Advice
• Find a camera that has a larger sensor than the camera in general, so the effect of this noise can be reduced.
• Allowing the ISO mode in the AUTO position may be able to make automatic camera raises the ISO value is too high when used in place of the less light, the alternative arrange the ISO value is adjusted manually with the shooting conditions.
• When to use a high ISO, if available, use the RAW file format so that noise reduction can be done in software

Selling Photography to Magazine

through a PC.
• Do not buy a digital camera:
1. can not manually set the ISO
2. wearing false image stabilizer by increasing the ISO
3. has a higher megapixel sensor but the small size -> will be very noise at high ISO