http://www.sonyalpharumors.com/big-new-50mm-lens-battle-zeiss-50mm-f1-4-fe-versus-samyang-50mm-f1-4-fe-surprising-conclusion/ ]]>

• inter/extrapolate to get MTF50;

• combine tangential/saggital to get the area of MTF50-ellipse-of-confusion at given distance;

• Again, interpolate to calculate the number of these ellipses covering the assumed frame size of this lens.

One can repeat this for MTF10 ellipses. (It does not matter mach how one recalculates the value in lp/mm into an axis of ellipse?—?this would just rescale the number?—?independent of the lens.)

I think it would be a very valuable addition to the curves you publish!

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