Quote Originally Posted by E. von Hoegh View Post
It most certainly is the same. A 30% error in a shutter, an aperture, or or a lightmeter will have precisely the same effect on exposure.
I'm talking about the error spec on the specification sheet or industry standard, not the resulting effect. In other words, the ANSI/ISO spec for light meter calibration is probably not anything close to 30% error. I don't ahve the standard at hand but I'm remembering from memory. But, Yes, of course the effect of error anywhere in the exposure chain affects the exposure on film.