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20世纪60年代前的照相机几乎都没有自动测光功能,曝光量全凭摄影者的经验而定,曝光失误也就在所难免。如今的照相机几乎都具备多种测光、曝光功能,正确曝光已不再是困难的事。但是,我们去浏览大量的底片,仍能发现完全依赖相机的自动曝光去拍摄的话,会存有一些曝光不够准确的情况。就以大家惯用的A档(光圈优先自动曝光模式)来说吧,它多以偏重中央平均测光为依据,根据光圈的大小,自动设定快
Almost all the cameras of the 1960s did not have the automatic metering function, the exposure depends entirely on the experience of the photographer, exposure errors are inevitable. Almost all of today’s cameras have a variety of metering, exposure functions, the correct exposure is no longer a difficult thing. However, we went to browse a large number of negatives and still found some situations where the exposure was not accurate enough to rely on the camera’s automatic exposure for filming. On everyone’s favorite A file (aperture priority AE mode), for example, it is more emphasis on the central average metering as the basis, according to the size of the aperture, automatically set fast