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"I saw exactly the same vignetting, caused by the lens shade, when I shot topside pictures.  More extreme vignetting with the camera set to the full FX picture and less when I had my D800 set to the DX crop mode.  If you have an FX camera, like the D800 or D810, you can get the same picture area as Adam did by simply setting the camera to the DX mode.   \n  \nIf you use the D800 or D810 in the DX mode you have a camera that shoots images very similar to the D500. I think it is about 16 Megapixels and has auto-focus spots covering nearly the whole image area. What the D500 offers is faster and possibly more accurate auto-focus, a faster frame rate which is of little use if you are shooting with strobes, and the larger image buffer which again is of little use if you need to wait for strobes to recycle. If Nikon's successor to the D810, D820?, appears with the rumored 46 Mp sensor (an upsized D500 sensor) the D500 will offer very little advantage, except size and weight and price, over the D820 when the D820 is used in the DX mode.  And it will offer more than double the Mp in the FX mode for higher image quality. \n"
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