Wrong aperture no in the EXIF data.

[HenrikP]

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I have discovered a small error on my m-e. It writes the wrong aperture number to the EXIF data. I have only one lens a 50 mm Summarit 2.4. The exposure is correct, but if I take a series of 2.4, it will in 30-50% say 2.8.

 

It is both in M an A program.

 

Regards

 

 

 

 

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[lucerne]

Henrik.

There is no electronic signal relating to aperture setting relayed from the lens to the body.  It is an approximation.  Make sure that your camera is set to auto detect the  lens.  You might find other posts about aperture / EXIF  on our forum search facility.

[jdlaing]

As there is no electrical contact between an M lens and the M cameras the aperture setting cannot be read by the camera.it is merely a guess made by the camera to what the aperture actually is.

[HenrikP]

As there is no electrical contact between an M lens and the M cameras the aperture setting cannot be read by the camera.it is merely a guess made by the camera to what the aperture actually is.

 

Of course, it makes perfect sense. I can see that the camera is better to estimate the right aperture to use when higher aperture no is used.

 

 

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[jaapv]

May I draw your attention to the FAQ at the top of this subforum?