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MTF for Sony FE 50mm f/1.4
The MTF charts are computed fantasy MTF, which means that a real lens is not tested. Rather, a computer simulation is used to compute the MTF that would be expected from a lens built to perfection. Also, the f/8 graph does not take diffraction into account
Still, the MTF looks promising at f/1.4 and claims to easily outperform a Leica Summilux 50/1.4.
MTF as shown for f/8 has characteristics that suggest lens behavior will need field evaluation. In particular, focus shift behavior is highly relevant in real world usage.
See also Sony Diffraction-Free Computed Fantasy MTF.
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