In most cases you can be at ease use camera CANON Digital Camera Battery to be automatic program mode to film, modern digital camera very advanced exposure system could help you judge environment light, make you produced a very accurate picture of exposure. But not the need to learn knowledge exposure, instead, you should be more careful about exposure of all kinds of knowledge, you for the future of the photography creation to lay a solid theoretical basis.
Average metering that for the whole picture average metering value calculation, it is commonly camera default metering mode, using more common in point range light to compare even, light and shade contrast is not big, the metering mode can almost be let you get a satisfactory photograph.
Evaluation is the dx for evaluation within the frame of the reflected light is mixed up all evaluation, all data through Digital Camera Battery or metering after the meter that a best exposure value, in this film way, the picture on the central area light can be key consideration. This way can easily get a balanced picture, suitable for measuring such as light, the light side such as light even picture and the scenery is contrast, would not have local highlights a aeration.
Evaluation metering and disadvantages, it can not meet such as shadow, and so on the many kinds of cases against the exposure.
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