Let me repeat my words from the summary of the FE 40 mm f/2.5 G model – Sony would have increased the interest in the G series trio, presented in March 2021, if only their focal lengths had differed a bit more.
solid and sealed mechanical construction,, excellent image quality in the frame centre,, very good image quality on the edge of the APS-C sensor,, practically zero lateral chromatic aberration,, moderate distortion,, properly corrected coma,, negligible astigmatism,, moderate vignetting on the APS-C...
some problems with longitudinal chromatic aberration,, high vignetting on full frame,, exorbitant price.