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<blockquote data-quote="Horoscope Fish" data-source="post: 303783" data-attributes="member: 13090">You can put an FX lens on a DX body no problem. The reason is because the image cast by the FX lens is larger than the DX sensor. This being the case, the camera sensor will be using the center-most portion of the larger field of view cast by the FX lens which is where you get the best resolution; the center is the &quot;sweet spot&quot;.Conversely, if you were to put a DX lens on an FX body, the image projected by the lens would be smaller than the sensor the image is falling on, so then your shots wind up with dark corners, an effect called vignetting.Let's use an illustration to illustrate this...<img src="http://www.nobadfoto.com/img/lessons/cropped-view.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />See how the DX sensor area falls squarely in the center of the FX image circle? That's the &quot;sweet spot&quot; I'm referring to. You can also see how putting the DX lens on an FX body would &quot;crop&quot; the image giving the dark corners (red/white circle vs big blue sensor area).Hope that helps to clarify things....</blockquote>

[QUOTE="Horoscope Fish, post: 303783, member: 13090"] You can put an FX lens on a DX body no problem. The reason is because the image cast by the FX lens is larger than the DX sensor. This being the case, the camera sensor will be using the center-most portion of the larger field of view cast by the FX lens which is where you get the best resolution; the center is the "sweet spot". Conversely, if you were to put a DX lens on an FX body, the image projected by the lens would be smaller than the sensor the image is falling on, so then your shots wind up with dark corners, an effect called [I]vignetting[/I]. Let's use an illustration to illustrate this... [IMG]http://www.nobadfoto.com/img/lessons/cropped-view.jpg[/IMG] See how the DX sensor area falls squarely in the center of the FX image circle? That's the "sweet spot" I'm referring to. You can also see how putting the DX lens on an FX body would "crop" the image giving the dark corners (red/white circle vs big blue sensor area). Hope that helps to clarify things. [COLOR=#ffffff]...[/COLOR] [/QUOTE]

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