Saturday, November 27, 2010

the basics of SLR camera

SLR Camera
 SLR (Single Lens Reflex) or D-SLR (Digital) is a camera with a viewfinder (viewfinder) which provides images in accordance with the angle of view lens via a mirror reflection that lies behind the lens. In general, regular cameras have a viewfinder display of a different viewpoint because the viewfinder lens is not aligned with the angle of view lens.

As discussed earlier, fotgrafi closely related to the light, the camera serves to regulate the light that was captured image sensor (image sensor on digital cameras or film on a conventional camera.) To set the light, there are 2 basic points of the camera, the Shutter Speed (Shutter Speed) and aperture (diaphragm).


Shutter speed

speed camera window is open so that light can enter the image sensor. Unit than the shutter speed is second, and very much depending on light conditions while shooting. Such bright light during the day, then shutter speed should be adjusted to be faster, such as 1 / 500 sec. As for a light evening a little more, then shutter speed should be adjusted to be longer, such as 1 / 5 seconds. This also explains why the photo at night tend to be blurry, that a slower shutter speed allows the camera movement due to vibration shifted hands make light so that images become blurred / blur.

Photos with fast shutter speed

Photos with slow shutter speed

Aperture

Aperture is the term for the lens aperture. If likened to a window, then the diaphragm is kiray / curtain that can be opened or closed to adjust the amount of light entering. On the camera aperture is denoted by the letter F and the unit as follows:
f/1.2
f/1.4
f/1.8
f/2.0
f/2.8
f/3.5
f/4.0
dst...

The smaller the number of units then the greater the aperture lens (f/1.4 larger opening than the f/4.0).

Pic: Aperture on the lens

So, the correlation between shutter speed and aperture is that the larger the aperture, the shutter speed will be faster, otherwise the smaller the lens aperture, the shutter speed will get slower.

Mode on a DSLR camera
Each camera has a term, respectively - each for setting fashion. Here are described for several types of cameras only.

D70 mode image
On the Nikon D70 camera has 11 shooting modes:

M= Full Manual
In this mode the camera is fully manual settings, good shutter speed, aperture, ISO, etc..

A= Aperture Priority
In this mode the aperture can be adjusted in accordance with the will, but the shutter speed will automatically compensate the light requirement in accordance with the large aperture.

S= Shutter Priority
Pada mode ini shutter speed dapat diatur sesuai dengan kehendak, namun aperture akan mengimbangi secara otomatis kebutuhan cahaya yang sesuai dengan shutter speed.

P= Program
In this mode both aperture and shutter speed will be calculated automatically according to the needs of light, only in this mode the level of exposure can be adjusted according to the will.

Auto
Auto mode is a mode where the camera is fully set up will all the needs of the setting, in other words in this fashion photographer stayed "snap" course.

Portrait
This mode is a bifurcation full auto mode, but more tailored to the needs of portrait (human photos), such as the use of tonal colors for skin tone, etc..

Landscape
This mode is a bifurcation full auto mode, but more tailored to the needs of landscape photos (landscape), such as tone colors more vivid, or so forth.

Macro
This mode is a bifurcation full auto mode, but more tailored to the needs of image macros (short distance, so objects appear larger), such as a more customized focus lens.

Moving Object
This mode is a bifurcation full auto mode, but more tailored to the needs of shooting a moving object, so the focus lens will more quickly move to adjust to the movement of objects.

Night Landscape
Mode ini merupakan pencabangan mode full auto, namun lebih disesuaikan dengan kebutuhan pemotretan objek yang bergerak, sehingga fokus lensa akan lebih cepat bergerak menyesuaikan dengan pergerakan objek.

Night Portrait
This mode is a bifurcation full auto mode, but more tailored to the needs of the day or night portrait photos in low light.

Picture mode Canon 350D

On the Canon 350D camera there are 12 shooting modes:

A-DEP= Automatic Depth of Field
In this mode, focus foreground and background settings adjusted automatically by the camera so it is more likely to produce good sharp images in the foreground or background.

M= Full Manual
In this mode, fully manual camera settings, both shutter speed, aperture, ISO, etc..

Av= Aperture Value Priority
In this mode the aperture can be adjusted in accordance with the will, but the shutter speed will automatically compensate the light requirement in accordance with the large aperture.

Tv= Time Value Priority
Pada mode ini shutter speed dapat diatur sesuai dengan kehendak, namun aperture akan mengimbangi secara otomatis kebutuhan cahaya yang sesuai dengan shutter speed.

P= Program
In this mode the shutter speed can be adjusted in accordance with the will, but the aperture will automatically compensate the light requirement in accordance with the shutter speed.

Auto
Auto mode is a mode where the camera is fully set up will all the needs of the setting, in other words in this fashion photographer stayed "snap" course.

Portrait
This mode is a bifurcation full auto mode, but more tailored to the needs of portrait (human photos), such as the use of tonal colors for skin tone, etc..

Landscape
This mode is a bifurcation full auto mode, but more tailored to the needs of landscape photos (landscape), such as tone colors more vivid, or so forth.

Macro
This mode is a bifurcation full auto mode, but more tailored to the needs of landscape photos (landscape), such as tone colors more vivid, or so forth.

Moving Object
This mode is a bifurcation full auto mode, but more tailored to the needs of shooting a moving object, so the focus lens will more quickly move to adjust to the movement of objects.

Night Scene
This mode is a bifurcation full auto mode, but more tailored to the needs of photo at night.

No Flash
This mode is a bifurcation full auto mode, but if the other auto mode built in flash will automatically pop up when light is less, in this mode built in flash will not light at all, so the shutter speed and aperture will further contribute to offset the need for light .


Light settings

Each camera has a light meter that functions to detect light intensity. Before pressing the shutter button, when using the camera in manual mode the exposure meter is worth considering first.
Next image exposure indicators:

Shown in the picture above the bar that indicates exposure. If you want to produce images with excellent light, put a bar in the middle position (normal exposure), but if it produces a brighter picture, slide the bar to the sign + (become over-exposure), and vice versa, for the results of a darker picture slide bar direction - (to be under exposure)

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1 comments:

fandy said...

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