larryepage Loc: North Texas area

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:

larryepage Loc: North Texas area

I am being frustrated in my attempts to upload the second image. It's important, so I'll put it in a separate thread.

That attempt failed multiple times also.

Just imagine this as a telephoto image with even less vignetting.

mas24 Loc: Southern CA

That's the reason why it is best to use FX lenses on DX cameras. Nikon does not mind you doing that whatsoever, because FX lenses cost more. I know someone who rarely separates his FX 28-300mm lens from his DX D7100 camera.

CHG_CANON Loc: the Windy City

Larry, try as you might, you cannot upload an image larger than 20mb. I look forward to your other examples. You can simple make another reply here and add more attachments recognizing the attachment limit.

Rongnongno Loc: FL

And?

JPL

It should be easy to post the second. when you have selected the first one "choose file" - tick the box "store original" and click the button "add attachment"
Then you get the next file by repeating this process.

lamontcranston

A picture is worth 1000 words. That 1st photo you posted tells it all, despite the comments we've read from others regarding DX lenses on FX bodies. Thanks for the post. Very interesting and informative.

larryepage Loc: North Texas area

2nd Image...

200mm using 18-200mm DX zoom on D810 FX body. Had to reduce the resolution a bit to fit within the thread. Much less vignetting, but still very apparent.

Motorbones Loc: Fair Oaks, CA

Never mind...

BebuLamar

You can do a square crop and get the maximum angle of view which is significantly more than the 27mm equivalent if you let the camera crop it.

Leitz Loc: Solms

Check your user's manual, page 75.

LoneRangeFinder Loc: Left field

I had a similar disagreement with vignetting regarding the use of a step down filter on a Full frame (Nikkor FX) and the same step down filter on a cropped sensor (Nikkor DX) lense. The other UHH user said that there would be more vignetting on the DX; I said there would be more on an FX. Others jumped in to agree with the other user because he posts more often. I decided to let it go rather than arguing. I'm still right....

ChackbayGuy Loc: South Louisiana

Just bought a D7500 body and a Sigma 100-400 FX lens to use for air shows. Currently shooting with a D750 with the 24-120 kit lens, the F2.8 70-200 and the 105 macro. Trying to decide on a walk around lens for the D7500. As soon as I decide and get that, will be doing the same experiment to see my own results. Interesting post and I suspect I will have fun playing with this.. More as it happens, film at 11!

Pegasus Loc: Texas Gulf Coast

Ok, but I'm not sure what you are expecting to see. You're doing the exact reverse of the OP. You're using an FX lens on a DX body; there will be no vignetting on the image.

repleo Loc: Boston

I don't have any problems with APS-C lenses on my FF Sony. !!