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<blockquote data-quote="WayneF" data-source="post: 394267" data-attributes="member: 12496"><p>Reversal film (slides) don't have much latitude, but negative film had very wide latitude, if given enough exposure. That allowed Sunny 16 to work well for negatives, the dark room processing took care of the rest of it then. </p><p></p><p>Kodak used to specify the ASA film speed of B&W negative film as half of what it actually was, for greater insurance against underexposure (in regard to Sunny 16). But in 1960, they doubled the speed rating of all their B&W negative film, since light meters were becoming more available, and meters even had started appearing built into cameras (Nikon F had no meter until 1963). No internet then, camera magazines carried most communication, and you should have seen the articles protesting meters in cameras... are we going to let our camera tell us what to do? How could a meter in the camera possibly be accurate? Same old fogy nonsense that accompanies any new technology. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p></p><p></p><p>Camera meters can read reflected light from the subject. It can be absolute in that sense. But the one in a cell phone is not in the same class as the one in a DSLR. DSLR have very special purpose meter cells built- into the viewfinder, designed for the job. Compacts and cellphone (and Live View) can only just look at some pixels in the image.</p></blockquote><p></p>
[QUOTE="WayneF, post: 394267, member: 12496"] Reversal film (slides) don't have much latitude, but negative film had very wide latitude, if given enough exposure. That allowed Sunny 16 to work well for negatives, the dark room processing took care of the rest of it then. Kodak used to specify the ASA film speed of B&W negative film as half of what it actually was, for greater insurance against underexposure (in regard to Sunny 16). But in 1960, they doubled the speed rating of all their B&W negative film, since light meters were becoming more available, and meters even had started appearing built into cameras (Nikon F had no meter until 1963). No internet then, camera magazines carried most communication, and you should have seen the articles protesting meters in cameras... are we going to let our camera tell us what to do? How could a meter in the camera possibly be accurate? Same old fogy nonsense that accompanies any new technology. :) Camera meters can read reflected light from the subject. It can be absolute in that sense. But the one in a cell phone is not in the same class as the one in a DSLR. DSLR have very special purpose meter cells built- into the viewfinder, designed for the job. Compacts and cellphone (and Live View) can only just look at some pixels in the image. [/QUOTE]
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