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How your lens selection controls portrait outcome
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<blockquote data-quote="WayneF" data-source="post: 541784" data-attributes="member: 12496"><p>That's three times you've mentioned Cambridge here, which is the most that I can forgive you for. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Some of it is OK, but I am not a fan, so I cringe.There are other things, you ought to see their gamma page, they actually imagine gamma was done for the human eye. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> How soon we forget. <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>Right, there is no telephoto perspective. It shows a larger subject of course (magnification and cropping, which we can easily just do later, except for pixel count), but the spatial relations are unchanged ,either way we do it. Perspective is only because of where we stand, due to what we see when we stand there, which any lens will capture there. We can speak of telephoto compression, but which is only true in a few special cases, depending on where we stand. The opposite is true if we stand other places. It's not about the lens. It's about where we stand. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Why is that difficult for you?</p><p></p><p> If speaking of any so called "equivalent focal length", that is purely because of the smaller sensors cropping the image. Assuming same lens, the lens remains exactly the same lens, zero telephoto effect, but when we have to enlarge the cropped image more (because it is smaller), then we see a larger result view as if from a larger sensor with a longer lens (but the small one is necessarily enlarged more). All that happened was the smaller sensor cropped the image. If we stand in the same place, perspective remains the same either way. We are not required to stand in the same place, but perspective remains to be about where we do stand. Not due to the lens.</p><p></p><p></p><p></p><p>I wish you wouldn't say that because I'm not agreeing that we agree. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Macro being so close does NOT cause extreme perspective effects. It is relative, ratio of near subject to far subject. We probably could assign a number to it, except there are a few planes. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Macro is just the same percentage thing, already addressed.</p><p></p><p></p><p></p><p>Of course different lenses can cause many differences, that's why we choose them. But perspective is not one of those lens properties. Where we stand determines perspective. The lens might influence where we want to stand, but perspective is determined by where we choose to stand.</p><p></p><p>You realize we are just spinning wheels here? No added substance.</p></blockquote><p></p>
[QUOTE="WayneF, post: 541784, member: 12496"] That's three times you've mentioned Cambridge here, which is the most that I can forgive you for. :) Some of it is OK, but I am not a fan, so I cringe.There are other things, you ought to see their gamma page, they actually imagine gamma was done for the human eye. :) How soon we forget. :) Right, there is no telephoto perspective. It shows a larger subject of course (magnification and cropping, which we can easily just do later, except for pixel count), but the spatial relations are unchanged ,either way we do it. Perspective is only because of where we stand, due to what we see when we stand there, which any lens will capture there. We can speak of telephoto compression, but which is only true in a few special cases, depending on where we stand. The opposite is true if we stand other places. It's not about the lens. It's about where we stand. :) Why is that difficult for you? If speaking of any so called "equivalent focal length", that is purely because of the smaller sensors cropping the image. Assuming same lens, the lens remains exactly the same lens, zero telephoto effect, but when we have to enlarge the cropped image more (because it is smaller), then we see a larger result view as if from a larger sensor with a longer lens (but the small one is necessarily enlarged more). All that happened was the smaller sensor cropped the image. If we stand in the same place, perspective remains the same either way. We are not required to stand in the same place, but perspective remains to be about where we do stand. Not due to the lens. I wish you wouldn't say that because I'm not agreeing that we agree. :) Macro being so close does NOT cause extreme perspective effects. It is relative, ratio of near subject to far subject. We probably could assign a number to it, except there are a few planes. :) Macro is just the same percentage thing, already addressed. Of course different lenses can cause many differences, that's why we choose them. But perspective is not one of those lens properties. Where we stand determines perspective. The lens might influence where we want to stand, but perspective is determined by where we choose to stand. You realize we are just spinning wheels here? No added substance. [/QUOTE]
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How your lens selection controls portrait outcome
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