Teach you how a digital camera exposure
Teach you how a digital camera exposure
Teach you how a digital camera exposure
Very simple and very basic, but many people do not understand, teach you how a digital camera exposure.jvc bn-vf808u charger
Camera is exposed, but not the exposure does not know how to photography (I am talking about photography, not photography with the Auto file)
Speaking of exposure, we regard the partition Exposure Adams regarded as a canon, there are 16 rules of what the sun, of course, I am not that bad, are the masters of the experience, but in a digital age, it becomes not so easy to understand, and now do not have to go fiddling with bottles and jars, and computer-controlled exposure became more accurate, so we need a more suitable method of exposure of the digital age, is not it?
Many online tutorials, but written in practical and accurate rare, take the time to write this tutorial. As long as you are willing to devote some thought to read it. I believe is useful to you.
We need to understand a situation that every model of camera exposure data are in fact not the same, even if the same type of camera exposure also varies, so to get the perfect exposure, we must first understand their own hands the camera's exposure data.
The first step, get your camera's exposure data.
A white, white walls can be, all the white stuff can be formed.In order to get a good light, preferably during the day.The camera set to manual focus, focus not on white paper, we are not measuring the lens is no need to film is less clear. Built-in camera contrast, color, sharpening them altogether mess things set to 0. The camera set to spot metering. The camera set to manual, aperture probably between 4 to 6 on it. Against white, adjust the shutter to make exposure compensation for the 0EV, press the shutter, OK, we get an exposure to 0EV images. Continue to adjust the shutter to the exposure compensation to +1 EV, press the shutter, get a +1 EV image. And so on.
General enough to +4 EV, if you camera is that you have confidence, can go to +5 EV, +6 EV. . . +10 EV, etc., or you're just very bored. In turn adjust the shutter, so that exposure compensation to-1EV, press the shutter, get a-1EV images. And so on.
The general to-5EV on it. Unless you're really bored. . . . Also, remember the order of each image.
Here to talk about the issue of image format, jpg or raw? I am using the camera as a jpg straight out of the test, because most of the cases I have been shooting with a jpg and raw large tolerance ratio jpg, jpg exposure control well the raw is not a problem.
Well, to take their best photos into the computer. Our aim is to test out the photos under different values of the brightness of EV. Brightness requirements, direct access one RGB value, or average can be. Zhang then open in PS in the image, use the tool to draw straws among the pixels (that is, the location of camera time point measured) down to its RGB value. Each of them write it down and and its corresponding EV values, the sort, you can make a form.
OK , this is your camera's exposure data, so important data should be take the time to back down, at least to remember that your camera will add more when exposed swap file, or reduced when the number of files to be dark not tell the details.
The second step.
Spend some time training in the PS in the box to draw some different brightness, and then note the value of its brightness and training to all of you can almost guess the brightness values of the time, OK, you can get away with it.
The ultimate goal of training is. A picture, you need only glance, can accurately tell the scope of its brightness, such as the face of the RGB brightness is how much, how much light the tree, the sky brightness is much to be able to guess a very near the time, congratulations, you are not far from the master. A range of course we can only guess, how small this range, accuracy is very high, it depends on you how high the exposure requirements, or how close you want from the master.
Third step is the photograph, said accurately is the light measuring.
What is Exposure? The exposure, is to use the camera's exposure data, control was taken in the brightness of the object in the photo!
For example, to the above DP2 data, shoot a white wall, called the brightness of the photo is about 116, is to point measuring objects, exposure compensation set to 0 take on it. He wanted a little more light to the 207 or so, we must add two steps of exposure.
Turn dark spots on the image to reduce exposure. As the brightness button on the remote control as. Is not it simple?
Remember, you have to learn is the relationship between the brightness of the image! If you intend, you can note some of the brightness relationship, such as brightness of 116 people face when in how, when the 207 is how, how in the 44 time for the sample. Another example is general, how much the brightness of the sky, trees, the brightness is the amount of surface brightness is much more. Of course it down just for reference, when you press this when they know what the exposure effects.
See more pictures of an object that you naturally know what kind of brightness, every time you raise the camera, in brain surface in advance will be making a good image, you have to do is adjust the camera aperture shutter to shoot out of photos consistent with the image in your brain, and then press the shutter, a work of art will be born, for you This is real work, because this is your film, according to their wishes, not the camera automatically calculates the results.
In general, the first to know what your camera gear down in what will be produced to know your brightness, photos, and then what need brightness is lens aperture and shutter is, of course, press the shutter.
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