[davidmanze]

The sensors used by Nikon (and others) don't always have the same size, and more often than not are not exactly 1.5x crop.

Take the Nikons D40/50/60/70, for example, had a 23.7mm sensor width, so 1.519x crop factor. This is the biggest size by the way, so it should really be called 1.52x crop.

The D500 has a 23.5mm sensor width, so 1.532x crop factor. The Nikon D3200's sensor has 23.2mm width, 1.552x crop. The D3100, with 23.1mm sensor width, 1.558x crop.

 

My EOS M has a sensor width of 22.3mm, which makes it 1.614x crop. My EOS 6D has a 35.8mm sensor width, making it a 1.0056x crop.

 

Don't forget the height BC!

 

 

 So the D40 has a 23.7mm sensor width but with a 15.5mm height.  = 367.35 mm2

 

The D500 has a 23.5mm sensor width but with a 15.7mm height      = 368.95mm2   that's an increase of 1.6 mm2

 

How that fits in with the multiplication factor i don't know.  Perhaps you could enlighten us here?

 

  The Canon 80D has a 22 X 15mm size  = 330 mm2........  38.95mm<span style="font-size:10px;">2<span style="font-size:14px;">......less!</span></span>

 

  The Nikon D500 sensor is therefore  1.118 X larger than the Canon D80 APSc sensor!

 

 Not far off the difference between MF and FF............... <_<

 

 

  I know you like that one BC..!!!   .......... :lol:  :lol:  B)         

 

  (The biggest Nikon DX sensors are the D3000/D20/D300 in terms of surface area)