What are the skills to solve the virtual edge of product shooting?

The small aperture of commodity photography refers to the aperture above F/ 16, such as F/22, and the depth of field at this time is usually enough for commodity photography; The image deterioration caused by small aperture is acceptable in commodity photography, because you must be a thumbnail when you finally publish the picture; And the naked eye is not so sensitive to the degradation of images other than portraits. Some goods have a certain depth of field, so F/22 can't guarantee the clarity of the whole process. At this time, you need to fix the camera with a tripod, take multiple shots with multiple focuses, and then use Photoshop mask to splice. Take photos of sunrise and sunset, sunshine and snow scene, night scene at the beginning of the lamp, and the moon rising at dusk. Read the sky value with center focus or matrix photometry, and expose it accordingly, and you will be pleasantly surprised! The biggest trouble of shooting sunrise and sunset is that the sun plays a strong interference role in the picture, which makes the picture underexposed. At this time, aim the camera at the sun, and the picture does not contain the sun. Read the value, that's it! Your exposure is correct. Under the snow scene, if you use the conventional central key exposure, it is often that the snow turns gray, no problem. Reading the blue sky value can easily get the exposure compensation of troubles. When you are not sure about exposure value, under the same lighting conditions, stretch out your palm, fill the whole picture or almost the whole picture with your palm, read the data with the central key, and then make +2/3 shift compensation (film machine). In many cases, D70 may have to be compensated by+1 file. This is your exposure data. People should not be underexposed and the scenery should not be overexposed. In portrait photography, the audience's eyes require high transparency of the picture, have low tolerance for noise, and pay little attention to background exposure. At this time, the subject's face is required to be smooth and free of impurities, and a little overexposure is helpful to eliminate the spots on his face. Even if overexposure requires post-adjustment, as long as the face is not washed white by highlights, reducing exposure will not increase facial noise.

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