What happens if you you use a DX lens on a FX camera?

5 years 7 months ago #604035 by Nathan D
I know you can use a FX lens on DX camera, but what happens the other away around? 


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5 years 7 months ago - 5 years 7 months ago #604084 by effron
You get a crop, and a much lower MP image.
I know my Nikon dx lenses are awful on my full frame body...

Why so serious?
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5 years 7 months ago #604088 by fmw
Nikon FX cameras have a DX mode.  That mode simply uses the pixels that make up the DX format.


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5 years 7 months ago #604104 by Amy Porter
It's just a difference in crop size of image


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5 years 7 months ago #604112 by garyrhook
The rendered image isn't large enough for the sensor. So you get a partial image, sort  of circular, and vignetting in the corners. If you put the sensor in crop mode, you'd capture the appropriate portion.


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5 years 7 months ago #604251 by Rick Larin

garyrhook wrote: The rendered image isn't large enough for the sensor. So you get a partial image, sort  of circular, and vignetting in the corners. If you put the sensor in crop mode, you'd capture the appropriate portion.


Interesting, had no idea about the vignetting.  So does that happen outside of the normal 'crop' of the  DX lens?  


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5 years 7 months ago #604263 by effron

Why so serious?
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5 years 7 months ago #604278 by garyrhook

Rick Larin wrote: Interesting, had no idea about the vignetting.  So does that happen outside of the normal 'crop' of the  DX lens?  


Yep. Geometry doesn't change.


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