Jonas B
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 p.1 #2 · p.1 #2 · Summicron R 90/2 metering trouble in EOS 5D | |
Hi José
The problem you describe is common.
I have used alt lenses with Pentax, Olympus and Canon DSLR cameras. The problem exists with all these cameras and to a varying degree.
Basically the reason for this is the metering method with the light being measured from the focusing screen. This is combined with the info, or lack of info, transmitted to the camera from the lens. Some lenses will give a more correct result than other ones. It seem to have to do with the angle of the light hitting the mirror and then the focusing screen.
What you have to do is to adopt. I know, it is not fun but eventually you'll know what value you have to set the EV comp to.
There are some cameras working very well with alt lenses including the correct metered values. For example; The 5DMkII is better than the original 5D. The 5D is way better than the Olympus and Pentax (ist-Ds and K10D). The Panasonic G1 is the best - not a surprise as it meters from the sensor.
regards, /Jonas
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