2

is this the same as EV +2? which is two steps from 'normal exposure'.

It was taken from the information on a photo I saw taken with a Nikon

1

Normally, yes, 2 EV. In some cases a space is missing, that is it is 1 2/6 EV, or 1 1/3 EV.

  • 2
    Why would it be displayed in these odd fractions? – mattdm Jan 15 '15 at 0:38
  • Probably because the cameras that do it this way have exposure bias steps that are set at 1/6 stop. By stating it as 12/6, it is easy to see the photographer moved the EC dial 12 clicks. If the camera displayed it as 6/3, then we would know the user had 1/3 stop steps selected when the photo was taken. – Michael C Jan 15 '15 at 0:59
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    @mattdm, Exposure Bias tag 0x9204 in EXIF standard is specified as signed rational, that is represented by 2 numbers forming a fraction. Nikon are using '6' as denominator. 1/12 is internal calibration by the way. – Iliah Borg Jan 15 '15 at 1:44

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