2
\$\begingroup\$

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

Improve this question
\$\endgroup\$

1 Answer 1

Reset to default
1
\$\begingroup\$

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

Improve this answer
\$\endgroup\$
3
  • 2
    \$\begingroup\$ Why would it be displayed in these odd fractions? \$\endgroup\$
    – mattdm
    Commented Jan 15, 2015 at 0:38
  • \$\begingroup\$ 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. \$\endgroup\$
    – Michael C
    Commented Jan 15, 2015 at 0:59
  • 2
    \$\begingroup\$ @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. \$\endgroup\$
    – Iliah Borg
    Commented Jan 15, 2015 at 1:44

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.