[Brightcolours]

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)

Dave, the crop factor can be calculated just from the width. Or just from the height. Or just from the diagonal. As the sensors all have a 3x2 aspect ratio. The weird 10mp CCD from the D200 and consorts oddly enough is not a true 3x2 sensor.