Bryan at The Digital Picture has completed his review of the Canon RF 50mm f/1.8 STM, the new “nifty fifty” for the RF mount. Canon has a long history of making these inexpensive 50mm lenses that provide good optics and great value, and the RF 50mm f/1.8 STM continues this tradition.
Compared to its EF brother:
In the image quality comparison at f/1.8, the RF lens has a slight advantage, primarily in the image circle periphery. By f/2.8, the EF lens may be slightly sharper in the center of the frame, and the RF lens is very slightly sharper deep in the corners. The EF lens has less peripheral shading, and the RF lens has less geometric distortion. Overall, the image quality difference between these lenses is only slight. Read the full review