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What is MeasuredEV?

wmelchior
Apprentice

What exactly is MeasuredEV (an EXIF value)? How does it correspond to the standard definition of EV?

 

I have photos where the EXIF data gives MeasuredEVs of like 84 or 95.  The standard EV tops out at 16.

 

1 REPLY 1

hsbn
Whiz

Measured  EV is the exposure value that the camera measured at the time of shooting. It is the value that the camera "thinks" it would give you a "correct" exposure. For example, at the time of shooting, the camera says F8, 1/125s and ISO 100 is the correct exposure (this is the measured EV), but you decide to increase the exposure to 1 stop. So you change the value to F8 1/125 ISO200 (this is the captured EV). I'm not sure about the value, maybe someone else can help you with that.

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