With the most user-friendly language to explain the basics of photography.

1. Aperture Aperture is the relationship between the shutter and the camera lens can be changed in the middle of the pore size of the mechanical device, the shutter is the length of exposure time control device (mechanical or electronic), a combination of both, jointly controlled exposure. .For example, the light is like water, the equivalent of a lens to control the flow direction and flow of a sluice holes. .Is a hole the size of the aperture, shutter <p align="left"> 1. The relationship between aperture and shutter </ p> <p align="left"> is the camera lens aperture can be changed in the middle of the pore size of the mechanical devices ., the length of time the shutter is to control the exposure device (mechanical or electronic), a combination of both, jointly controlled exposure. .</ P> <p align="left"> example, the light is like water, the equivalent of a lens to control the flow direction and flow of a sluice holes. .Is a hole the size of the aperture, the shutter is a gate opening time. .</ P> <p align="left"> gate opening time is fixed, the smaller the hole, the less the amount of water inflow, whereas the more. .When the shutter speed is constant, the appropriate aperture (eg f5.6), exposure of normal, the aperture is too large (eg f2.8), overexposed, photographs (positive after washing, not the film) to shining white one, there is no hierarchy, and even .a white one; Aperture too small (eg f11), underexposed, photos, a dark, low-light parts of the loss or no-level image. .</ P> <p align="left"> hole size is fixed, the longer the gate opening, the more water flows, whereas the less. .Therefore, when the aperture is fixed, the right shutter speed (eg 1 / 250 second), exposure of normal, more full of the shutter (for example, 1 / 60 sec), the longer the exposure, overexposure, the faster shutter speed (eg 1 / 1000 second) .under exposure. .</ P> <p align="left"> Note that, although able to control aperture and shutter exposure, its effect is not equivalent. .The smaller the aperture, the higher the concentration of light to reach the film (or CCD) imaging, the easier it is clear imaging, (of course, the aperture is too small, there will be diffraction, but fuzzy) the greater depth of field, the smaller the contrary. .So, when you need precise control of depth of field, you can first determine the aperture size, shutter speed and then decide. .When shooting moving objects, if the shutter open too long, moving objects in the film (or CCD) of the different parts of the image, pictures are not clear, of course, on the contrary, when the shutter speed is high, move the body on film .imaging has not significantly move the exposure process has been completed, photos to clear, that is, to move the body frozen in the screen, so when shooting moving body, you can select shutter speeds as fast, and then adjust the aperture, correct exposure. .Of course, if you want to move the body in the photo on the left trajectory, enhanced dynamic, you can choose a slow shutter speed. .</ P> <p align="left"> flash photography is particularly important, proper choice of shutter and aperture, you can better control the light flash and other light than that. .As is now widely used in electronic flash flash time is very short, only about a millionth of a second, so when the shutter speed to synchronize (the so-called synchronization, is to make the flash of the time fell on the shutter fully open, close the period before .Otherwise, do not flash when the shutter is fully open, or closed, the flash does not make sense, even in the film as part of the exposure, recording failure) after a further period of exposure time and no effects. .Therefore, the effect depends on the flash to control the aperture, continuous ambient light (such as night lights in the other) depends on the role of the shutter to control, proper choice of the exposure combinations, can create the perfect artistic effect. .</ P> <p align="left"> 2. To the primary photographer for ten good suggestions </ p> <p align="left"> to junior photographer Ten good advice </ p> <p align = ."left"> 1, before pressing the shutter, check the back of the subject, is there something of the subject's "head" (as if to make them stretch.) .Shucha is usually the initiator. .Comparison of two images to see, is not the reason for this? .</ P> <p align="left">?? 2, walls and similar objects can reflect light to flash on the subject. .If no such objects, it is best not to use flash. .Otherwise, the pictures are will be very dark. .A typical example is the concert, get out a lot of flash effects, unless you are the edge of the stage. .</ P> <p align="left">?? 3, to determine whether the camera is parallel or perpendicular to the ground. .Otherwise the picture is crooked look, this is a problem difficult to forgive. .</ P> <p align="left">?? 4, the subject and the background color on the tone or the difference between appropriate, in sharp contrast. .This can be achieved by adjusting the aperture. .The larger the aperture, the more blurred the background, which can highlight the subject. .Of course, we have to be adjusted according to actual situation. .</ P> <p align="left">?? 5, shooting the sunset, turn off the flash, so pictures are too dark out. .</ P> <p align="left">?? 6, most of the cameras will focus on the center of the image area. .If the subject is in focus, on both sides of the camera's focus will be a problem. .General camera has focus lock function. .You can use it to camera at the center of the object, so that he or she will appear in the center of the photo. .Then, half press the shutter button. .Remain until you determine the success, to fully press the shutter, so you can get sharp images..