I have followed several posts here related to the effects of using DX Lenses on FX bodies and FX Lenses on DX bodies. The responses have in some cases been pretty painful to read. So...I just went outside and took a couple of shots using my Nikkor 18-200 DX zoom on my D810 FX body. Contrary to what has been written here, the D810 DOES NOT automatically switch from FX to DX mode. It will happily record almost the entire image circle produced by the lens, although the format can certainly be changed manually, if desired. I have included a couple of images captured about 10 minutes ago from my front yard to demonstrate the results, which I think are pretty interesting. These are exactly as recorded by the camera. Nothing has been adjusted.

The first is with the 18-200 set at 18mm. I have removed the lens hood, because it ends up within the field of view of the lens at this focal length. Personally, I believe that the result can include a pretty interesting "fake fisheye" view, even though it is not apparent in this image. The second, posted separately below, is the same perspective at 200mm. Vignetting is a little less pronounced.

Interestingly, the image circle with the 17-55mm 'gold ring' DX lens is more pronounced, because the image circle produced by that lens seems to be a little smaller than the one produced by the 18-200.

So...here you go:

I have followed several posts here related to the effects of using DX Lenses on FX bodies and FX Lenses on DX bodies. The responses have in some cases been pretty painful to read. So...I just went outside and took a couple of shots using my Nikkor 18-200 DX zoom on my D810 FX body. Contrary to what has been written here, the D810 DOES NOT automatically switch from FX to DX mode. It will happily record almost the entire image circle produced by the lens, although the format can certainly be changed manually, if desired. I have included a couple of images captured about 10 minutes ago from my front yard to demonstrate the results, which I think are pretty interesting. These are exactly as recorded by the camera. Nothing has been adjusted.

The first is with the 18-200 set at 18mm. I have removed the lens hood, because it ends up within the field of view of the lens at this focal length. Personally, I believe that the result can include a pretty interesting "fake fisheye" view, even though it is not apparent in this image. The second, posted separately below, is the same perspective at 200mm. Vignetting is a little less pronounced.

Interestingly, the image circle with the 17-55mm 'gold ring' DX lens is more pronounced, because the image circle produced by that lens seems to be a little smaller than the one produced by the 18-200.

So...here you go:

I have followed several posts here related to the effects of using DX Lenses on FX bodies and FX Lenses on DX bodies. The responses have in some cases been pretty painful to read. So...I just went outside and took a couple of shots using my Nikkor 18-200 DX zoom on my D810 FX body. Contrary to what has been written here, the D810 DOES NOT automatically switch from FX to DX mode. It will happily record almost the entire image circle produced by the lens, although the format can certainly be changed manually, if desired. I have included a couple of images captured about 10 minutes ago from my front yard to demonstrate the results, which I think are pretty interesting. These are exactly as recorded by the camera. Nothing has been adjusted.

The first is with the 18-200 set at 18mm. I have removed the lens hood, because it ends up within the field of view of the lens at this focal length. Personally, I believe that the result can include a pretty interesting "fake fisheye" view, even though it is not apparent in this image. The second, posted separately below, is the same perspective at 200mm. Vignetting is a little less pronounced.

Interestingly, the image circle with the 17-55mm 'gold ring' DX lens is more pronounced, because the image circle produced by that lens seems to be a little smaller than the one produced by the 18-200.

So...here you go: