Tips Choosing and Buying a Digital SLR Camera (DSLR) for Beginners

Choosing and buying a digital SLR camera (DSLR) gampang2 is difficult, especially for beginners who like me pas2n pockets. To your deep pockets, you just choose a high-priced or high-end class, because in the world of photography, the price usually bo’ong ga, kalo emang mahal ya mean good. But for me, who can ngabisin cost rations for two months, made me think hard to choose one of the producers who supply all tempting. There are some things that need to be considered in selecting and buying a digital SLR camera (DSLR) this. yuk we discuss ..

What You Need

There are so many choices on the market with a variety of prices and features variants. before deciding, think about your goal to buy a digital SLR camera, what features are important to you. You want the simplicity of a DSLR camera or the type of photographer you want to reply to explore all the advantages offered by an SLR camera.

Note the size of CCD or CMOS sensor used to capture the image. Although many variations in size, but generally fall into 3 categories, namely FullFrame, APS-C and Four-Thirds. For some, the size of the sensor (megapixel) not very important, more important, into which category the sensor2.

What distinguishes the three types of sensors are Crop Factor, the picture above shows that the smaller the sensor size, the smaller the area of the screen capture. the image results, look sperti using the focal length (1.5x or 1.6x longer for APS-C, 2x for the Four-Thirds).

For most beginner DLSR user, the crop factor is not the main thing, but worth considering if you want to use a DSLR to replace your old SLR camera, and if you already have a collection of mahal2 lens, it’s worth considering buying your DSLR Fullframe, because if not , the image produced will be different reply with regular SLR.

Another thing to note vote reply digital SLR camera or DSLR is antishake systems. A picture taken in dim lighting or taken from a distance will be prone to opaque (blur) due to hand movement or the camera accidentally wrote. Image Stabilization is designed to avoid this

The next thing to watch in reply to buy digital SLR camera or DSLR is speed. either speed or the speed of focus pictures. entry-level DSLR camera also has a speed of reply is better than a pocket camera high-end. The more expensive is also increasing its speed. this is required if you frequently photographing moving objects for example wrote a moving car or a bird in flight.

What is important is the size and weight of the camera body, you are familiar with the camera reply would be awkward pocket or little difficulty if the direct use Nikon D3 DSLR for example. reply should be started from such a compact Nikon D60 or Canon EOS 400D

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Less is more so hal2 to be considered in selecting and buying a digital SLR camera or a DSLR for beginners.

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.
•
• 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

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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

Digital Camera Sony DSC-DSC-TX1 and WX1: first use CMOS sensors for compact digital camera type

Anyone know of a compact digital camera has a problem when to take photos at night or low-light room, though it can, they even had to sacrifice the image with the level jualitas grain / noise is high.
Sony over digital camera product 2-TX1 DSC and DSC-WX1 try to eliminate “disgrace” them.
Both models of digital cameras this is the first in the world as a compact digital camera that uses CMOS sensor (CMOS sensor Exmor R) which is usually only found in digital SLR camera (DSLR).

The use of CMOS here will produce images sharp and clear of trouble grain / noise at the time taking pictures at night or low-light room.
With CMOS allows the camera to take pictures in high ISO but on one side will reduce the problem of grain or noise. And this will not happen if we use a digital camera with CCD sensor used in digital cameras compact type.
In terms of other features, both cameras are almost identical with each other and for more details, you can click the DSC-DSC-TX1 and WX1.
How these two cameras hebatkah this?? We think it would have been much better than all existing digital cameras, especially when we take pictures at night.
Oh yes, both cameras can also be paired with the Sony Party Shot.

News sources

Sony DSC-DSC-TX1 and WX1: World’s first CMOS sensor Exmor R

Photography Lesson – Night Photography