Kamis, 02 Agustus 2012

cara penggunaan kamera


HOW TO USE DIGITAL CAMERA

Before using a digital camera we need to know the types and functions of the camera components. Types of digital cameras that we discuss is the Pocket Camera (Point and Shoot Camera) and Digital Camera SLR (Single Lens Reflex).




Camera types

Pocket Cameras (Point and Shoot Camera)
Cameras Point and Shoot Camera The most widely used because of its ease of use and relatively inexpensive.
The camera is designed for those who do not like the manual controls or in other words completely automatic. This camera has an attractive facility, among others.

Optical zoom
Facility that is the image magnification is done by repositioning the lens combination.
Digital zoom
Namely failitas image enlargement is done digitally. This process is really just a process of enlargement crooping and use the camera's internal software. This results in an image zoom blur (blur).

Resolution up to 3.1 mega pixels.
Media can be a conventional lens viewfinder. LCD, or a combination of both.


Semi Professional Digital Cameras
The camera of this type has many names, including prosumer digital camera and an advanced camera. Giving the name and function associated with a unique target market. The camera is designed for those who want to made difficult by the aperture setting and talismans of photographic techniques.

With this camera they can manually adjust the distance and zooming mode or even the macro facility is very helpful in obtaining quality images and the desired effect. In general, the advantages of digital cameras of this class is the standard lens is used, the lens is 35 mm.


These lenses are similar to standard lenses in analog SLR camera, but with a special design to suit the character of digital cameras. Other technical advantages of manual and automatic control of focus, aperture, and the speed of the lens opening. This class of camera resolution is between 3.1 megapixel to 5.1 megapixel.
The offers of facilities that are complete enough to make this camera very attractive, as well as being the most popular among all classes of digital cameras.


Digital Camera SLR (Single Lens Reflex)
The lowest-resolution digital cameras have SLR (Single Lens Reflex) is a 5.1 megapixel camera. As with analog SLR cameras, digital SLR camera also has the best image quality because it uses an optical lens and manual control systems.
In addition to manual control is provided, this camera also has an automatic control system, aided by a fairly sophisticated micro-processor.
SLR-type digital cameras, as well as analog SLR camera, the lens can also be removed and replaced with a lens diameter larger or smaller as needed. In addition, the placement of buttons and basic functions of the digital camera is not much different. The basic components of this camera can be seen in the picture. There are two things to consider in using a digital SLR camera, the lens and flash.

Components Digital Cameras

Components to be discussed are the components of digital SLR cameras.



Lens
The lens is the first filter media when we scan the image to be stored. Therefore a basic knowledge of digital camera lens is necessary. The camera lens is currently didiesain use computers to improve accuracy. To increase the sharpness of the lens, the lens is coated with certain chemicals. Here are some types of lenses used on digital SLR cameras:

Standard lens
Standard lens is a lens which is a standard component of the camera. The size is 50 mm. The character of this lens is to provide natural shots. This lens is suitable for medium-range shooting.

Wide Angle lens (wide angle)
Wide angle lens is a lens that is used to capture large objects in the viewfinder field is limited. The character of this lens is that it can make objects smaller than actual size. The size of this lens is varied, including: 17 mm, 24 mm, 28 mm and 35 mm.
Besides, there is also a wide angle lens with a diameter of 14 mm, 15 mm and 16 mm. The lens is called a fish eye lens wear.



Tele lens
Is the opposite of a telephoto lens wide angle lens. Telephoto lens serves to hold the object, but the narrow viewing angle. Which includes a telephoto lens is a lens with a size of 70 mm and above. Another function of the telephoto lens is to crop the object and focus on specific and obscure objects in the vicinity.

Zoom lens
Zoom lens is a combination of the above three types. the standard lens, wide angle lens, and telephoto lens. The size of the lens is not a fixed size, but rather a specific lens range, eg 80-200 mm. Lenses of this type of lens is the most widely used because it has a flexible character and range wide enough lens. Thus, if you want to use a certain size lens wearers turn the size of the lens as needed.
Macro lens
Macro lens is usually used to shoot small objects. On this digital camera, a macro-scale enlargement is done digitally and not done optically.
All types of lenses have the same characteristics, ie the smaller the size of the lens, the wide angle which can be reached by the camera.

Sight device
Device camera viewfinder is a small window to see the composition of the image to be photographed to look at the composition of the image to be photographed. One thing that is important in the sight of this, namely accuracy. Each type of device has advantages and disadvantages sight. On digital cameras, there are three types of devices sights are:
Parallel Optical viewfinder
Parallel optical viewfinder is the same as the sights are owned by the analogue compact cameras. The lens is placed parallel to the lens of the image scanner.
This lens has a level of accuracy is not interconnected. Parallel optical sights can be seen in the picture.


Viewfinder LCD (Liquid Crystal Display)
LCD viewfinder is a small screen on the back of digital cameras.
This sight has a better accuracy rate than the optical viewfinder for a picture that appears is reflected from the camera lens. LCD viewfinder drawback is the delay time (delay). The time delay is often annoying when taking pictures separately documentation purposes that require precise moment when shooting. LCD viewfinder can be seen in the picture.


Optical sights TTI
TTI optical viewfinder (Through Dither lens) is a sight that has the highest accuracy rate for this type of sights to take pictures directly from the camera lens using a prism reflecting object. This type viewfinder only owned by the SLR camera. TTL optical viewfinder can be seen in Figure

Step Photographs

Basically all digital cameras will make the process komposis; color and focus (auto focus mode Jtomatis. This will help you concentrate on the object, not on camera.
Step-by-step photography using digital cameras:

A. Activate the camera.
Activate the camera and set on automatic mode. To save battery power off and use the LCD viewfinder optical pernbidik available.


2. Snap objects to cool.
Lens viewfinder or the LCD will display the object you want to take. Use the zoom button to get the right composition. If the sight was biased or not focused, you can check if your digital camera to provide a reducing bias.

3. Auto focus.
Place the object that will be. If the image has not been a sharp object, use the auto focus mode. Scale image sharpness depends on the type of camera you use. To do the auto focus when you press the button half-sight.


4. Automatic opening.
On photography there is a so-called aperture lens, the viewfinder lens to be wide open to scan the image. Automatic aperture on a digital camera is detected based on the amount of light received by the sensor. Having determined that the optimum lens aperture by pressing the button half-sight.
A. Normal position of the shutter button
2. A half-press the shutter button



5. Automatic flash.
If the incoming light is less, the automatic exposure (autoexposure) will activate the flash automatically. In the active state see the indicator light will blink when you press the button half-sight.


6. Automatic white balance.
White balance is a method of screening at the time of the conversion of black and white to shades of color gradation. The method automatically adjusts the color to white proportions still look white in photos.

Resolution

Digital camera has a standard resolution that can be used, among others.
• 256 x 256 pixel resolution is often found in early editions of digital cameras. But the picture quality does not meet the standard print. Total pixels at this resolution is 65,000 pixels.
• 640 X480 pixels - the resolution is the lowest for the standard print resolution camera. Imbiasa resolution used to display both web standards used on the homepage or to keep in touch via email. Total at this resolution is 307 000 pixels.
• 1216 x 912 pixels - the resolution is the lowest standard of megapixel resolution. This resolution is good enough to be printed in standard format. Total pixels at this resolution is 1.109 million pixels.
• 1600 x 1200 pixels - the resolution has a number of nearly two million pixels piksei. With that resolution you can print to the size 10R.
• Resolution digita camera at this time has exceeded 10 million pixels.
Decent standard resolution for a particular print size, "Kodak" table issued recommendations for the minimum standard print resolution images, as in the table below.
Minimum Print Size Megapixel Resolution
Wallet
4x5 inches
5x7 inches
8x10 inch 0.3
0.4
0.8
1.6 640 x 480 pixels
768x512 pixels
1152x768 pixels
1536 x 1024 pksel

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