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Tamron 90 Macro VC - exposure
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<blockquote data-quote="WayneF" data-source="post: 267896" data-attributes="member: 12496"><p>I was not there to see, so of course, I have no clue what we are discussing. But, even assuming on a tripod of the same scene, 90 mm will see a little wider view than 105mm. Even the center spot metered is a little wider. So I am wondering what the two lenses actually saw, and presented to be metered? My guess is that probably would explain things.</p><p></p><p>More white area in the metered area will tend to underexposure. More black area in the metered area will tend towards overexposure.</p><p></p><p>See <a href="http://www.scantips.com/lights/metering.html" target="_blank">How light meters work</a> Could that explain anything?</p><p></p><p>Try the comparison again, on a scene of a blank wall, that will be exactly the same all over, in both pictures.</p></blockquote><p></p>
[QUOTE="WayneF, post: 267896, member: 12496"] I was not there to see, so of course, I have no clue what we are discussing. But, even assuming on a tripod of the same scene, 90 mm will see a little wider view than 105mm. Even the center spot metered is a little wider. So I am wondering what the two lenses actually saw, and presented to be metered? My guess is that probably would explain things. More white area in the metered area will tend to underexposure. More black area in the metered area will tend towards overexposure. See [URL="http://www.scantips.com/lights/metering.html"]How light meters work[/URL] Could that explain anything? Try the comparison again, on a scene of a blank wall, that will be exactly the same all over, in both pictures. [/QUOTE]
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Tamron 90 Macro VC - exposure
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