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<blockquote data-quote="WayneF" data-source="post: 136693" data-attributes="member: 12496">FX and DX are just different.&nbsp; Not really about quality, but about how they are used.You likely will have to buy new lenses for FX, in that DX lens don't cover the full frame. This will be a pretty big deal.&nbsp; The FX cameras do have a menu option to shot DX format however.DX means that you have 1.5x multiplier on the 'effective' focal length, which makes the lens view compare like a 1.5x telephoto lens on FX.&nbsp; This DX telephoto effect tends to be good for sports and wildlife.FX means that your wide angle lens is truly wide angle, much wider than on DX.&nbsp; A 24 mm lens for example, is truly 24mm on FX, but the telephoto effect only acts like a 24x1.5 = 36mm effective on DX bodies.&nbsp; So, it is pretty hard to get extreme wide angle on DX.&nbsp; This must be the so-called FX landscape advantage.It is not about &quot;image quality&quot;. We are talking about the SAME lens.&nbsp; There is no other actual difference, just the sensor size.&nbsp; Larger&nbsp;&nbsp; FX sensors can have large pixels and lower noise, but not necessarily realized, since the new ones have more megapixels (smaller pixels). However, the new ones are still quite good about noise too, allowing higher ISO, whether it is D800 or D7100.See <a href="http://www.scantips.com/lights/cropfactor.html" target="_blank">FX - DX Lens Crop Factor</a> for more about these differences.</blockquote>

[QUOTE="WayneF, post: 136693, member: 12496"] FX and DX are just different. Not really about quality, but about how they are used. You likely will have to buy new lenses for FX, in that DX lens don't cover the full frame. This will be a pretty big deal. The FX cameras do have a menu option to shot DX format however. DX means that you have 1.5x multiplier on the 'effective' focal length, which makes the lens view compare like a 1.5x telephoto lens on FX. This DX telephoto effect tends to be good for sports and wildlife. FX means that your wide angle lens is truly wide angle, much wider than on DX. A 24 mm lens for example, is truly 24mm on FX, but the telephoto effect only acts like a 24x1.5 = 36mm effective on DX bodies. So, it is pretty hard to get extreme wide angle on DX. This must be the so-called FX landscape advantage. It is not about "image quality". We are talking about the SAME lens. There is no other actual difference, just the sensor size. Larger FX sensors can have large pixels and lower noise, but not necessarily realized, since the new ones have more megapixels (smaller pixels). However, the new ones are still quite good about noise too, allowing higher ISO, whether it is D800 or D7100. See [URL="http://www.scantips.com/lights/cropfactor.html"]FX - DX Lens Crop Factor[/URL] for more about these differences. [/QUOTE]

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