Full Version: Canom RF 50mm f/1.8 STM ... MTF
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[Image: spec-mtf.png]

vs the EF 50mm f/1.8 STMĀ 

[Image: mtf.png]
These MTFs look pretty bad...

What's the spacial frequency of these MTFs? 15 lines/mm, 45?
They are a clear improvement over the EF 50mm f1.8 STM, which does not test badly.
10 (contrast) and 30 (resolution).