Knowledge of the importance of exposure easily overlooked.

Digital photography a lot easier than film photography, and some very simple and very basic <p> digital photography a lot easier than film photography, and some very simple and very basic, very useful digital exposure techniques have been ignoring us. .Although the author is exposed to RGB color value is not very strict (Application Lab color L-value), but it is a summary of practical experience, more operational. .</ P> <p> first step, the camera's exposure access to their data exposure data for each type of camera 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. .</ P> <p> 1. First need a blank, white walls can be, all the white stuff can be formed. .In order to get a good light, preferably during the day. .</ P> <p> 2. The camera set to manual focus, focus not on white paper, we do not measure the lens do not need looks less clear. .</ P> <p> 3. The camera built-in contrast, color, sharpening, etc all set to 0. .</ P> <p> 4. Set the camera to spot metering. .</ P> <p> 5. The camera set to manual, aperture about 4 to 6 on it (in fact, can be arbitrarily set, but not too small so as not to run into reciprocal rate of failure.) .</ P> <p> 6. Against white, adjust the shutter so that exposure compensation is 0EV, press the shutter, OK, we get an exposure to 0EV image. .Continue to adjust the shutter to the exposure compensation to +1 EV, press the shutter, the image get a +1 EV. .And so on ... ... the general to +4 EV enough, if you camera is that you have confidence, can go to +5 EV, +6 EV ... ... +10 EV and so on. .Also, make exposure compensation to-1EV, press the shutter, get a-1EV images. .And so on ... ... the general to-5EV on it. .I remember the order of each image. .</ P> <p> 7. To take good photos into the computer. .Photos measured under different values of the brightness of EV. .Method brightness, RGB one direct access value, or average can be. .Zhang then open in PS in the images, drawing tools with a straw between pixels (picture point is the location of measurement) a note of its RGB value. .Each of them down and and its corresponding EV values, and sort out to a form that can be made below. .</ P> <p> This is my own measured data: <p> can also be seen from the table style of their imaging, D70 tolerance in smaller, high-contrast imaging, DP2 tolerance high, low contrast imaging .However, natural transition. .And high light curves gently bit and dark spaces, to preserve more details. .</ P> <p> this is your camera's exposure data, the data should take the time to such an important back down, at least to remember that your camera will add more time to file out of exposure (brightness more than 255), or .When will reduce the number of files to not tell the details of the dark. .When there is nothing in the 0EV brightness. .Best to carry small cards printed, photographed, or the time out to look useful..