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Wide-Angle
Wide angle macro for D50
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<blockquote data-quote="WayneF" data-source="post: 199520" data-attributes="member: 12496"><p>A telephoto lens is a longer focal length (200mm instead of 20mm), which has effect of zooming in to bring distant things up closer and larger... the opposite of wide angle.</p><p></p><p>A macro lens has the ability to focus very closely, like the subject being only a couple inches in front of the lens, instead of a couple of feet in front of the lens (focus distance is actually measured more from the rear of the camera, specifically from the focal plane mark just behind the top LCD ... a small circle with a line through it). </p><p></p><p>Most macro lens have the property of ability to focus close to give a 1:1 enlargement, which (thinking film for a second), means the image is exactly the same size on the film as it is in real life. A picture of a penny is enlarged to be 3/4 inch on the film, same as in real life. 1:1 means the same magnification for digital, we just have no film to take out and examine.</p><p></p><p></p><p>A lens could be both, like the 105mm macro lens.</p><p></p><p>A 40mm or 60 mm macro lens (in order to do 1:1 magnification) must focus real close, maybe two inches in front of lens. This can be inconvenient, the lens tends to block the light, and it tends to scare away live bugs, etc. </p><p></p><p>A 105mm macro lens gives the same view from maybe six inches in front of lens, which is a more convenient working distance. Said not to scare the bugs as much. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> However, for a wider view, like a table top scene (which is not macro work, but is a common situation), it is very much telephoto, and the longer lens may have to stand back maybe seven feet from the table, which becomes awkward (cannot reach the table to rearrange things, and the room may not have that much working space). So, there are pros can cons about macro focal length.</p></blockquote><p></p>
[QUOTE="WayneF, post: 199520, member: 12496"] A telephoto lens is a longer focal length (200mm instead of 20mm), which has effect of zooming in to bring distant things up closer and larger... the opposite of wide angle. A macro lens has the ability to focus very closely, like the subject being only a couple inches in front of the lens, instead of a couple of feet in front of the lens (focus distance is actually measured more from the rear of the camera, specifically from the focal plane mark just behind the top LCD ... a small circle with a line through it). Most macro lens have the property of ability to focus close to give a 1:1 enlargement, which (thinking film for a second), means the image is exactly the same size on the film as it is in real life. A picture of a penny is enlarged to be 3/4 inch on the film, same as in real life. 1:1 means the same magnification for digital, we just have no film to take out and examine. A lens could be both, like the 105mm macro lens. A 40mm or 60 mm macro lens (in order to do 1:1 magnification) must focus real close, maybe two inches in front of lens. This can be inconvenient, the lens tends to block the light, and it tends to scare away live bugs, etc. A 105mm macro lens gives the same view from maybe six inches in front of lens, which is a more convenient working distance. Said not to scare the bugs as much. :) However, for a wider view, like a table top scene (which is not macro work, but is a common situation), it is very much telephoto, and the longer lens may have to stand back maybe seven feet from the table, which becomes awkward (cannot reach the table to rearrange things, and the room may not have that much working space). So, there are pros can cons about macro focal length. [/QUOTE]
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Wide angle macro for D50
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