Gentlement, just think about a thin bowl sitting on the thin flat plate. The bowl represents the 50L light object @f1.2 and the plate represents the 50L light object @f8. Now, do you see any light shift at the bottom of the bowl or center of the plate when a well calibrated 50L is stopping down between f1.2 and f8. Your answer is a big \"NO\" ...so there is no light bending or shifting at that center point
This is exactly what i have tried to say since the bowl and the plate ilustrate how 50L light object works in real life. You will not have any center focus shift if you have a well calibared 50L but the boarder away from center point is a way off for another stories
I hope you all get it now.
Again: I have not found a single case of focus shifting when i am using my 50L with center AF sensor point. I pretty much rely on 1Ds2 AF and 5D2 AF plus Eg-S adjustment when focusing using off center AF sensor point
Gentlement, just think about a thin bowl sitting on the thin flat plate. The bowl represents the 50L light object @f1.2 and the plate represents the 50L light object @f8. Now, do you see any light shift at the bottom of the bowl or center of the plate when a well calibrated 50L is stopping down between f1.2 and f8. Your answer is a big \"NO\" ...so there is no light bending or shifting at that center point
This is exactly what i have tried to say since the bowl and the plate ilustrate how 50L light object works in real life. You will not have any center focus shift if you have a well calibared 50L but the boarder away from center point is a way off for another stories
I hope you all get it now.
Nov 30, 2012 at 12:42 PM
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