OpticalLimits reviews the Canon EF-M 18-55 STM IS and EF-M 55-200mm STM IS

[AlanF]

My copies to my eye: 18-55 and 55-200 are similar but I use the latter far more due to its reach. 11-22 is the sharpest in the platform.

The sharpest in my platform is the 22mm f/2 at f/4, and that would be the consensus also of review sites.

 

[neuroanatomist]

My copies to my eye: 18-55 and 55-200 are similar but I use the latter far more due to its reach. 11-22 is the sharpest in the platform.

The sharpest in my platform is the 22mm f/2 at f/4, and that would be the consensus also of review sites.

IMO, the M28/3.5 Macro is slightly sharper than the M22/2. But I don't know that any testing sites have reported data on the M28/3.5.

 

[gcl]

I agree with all those who have said we are seeing sample-to-sample lens variation. For example, my copy of the EF-M 55-200mm lens may be the sharpest of the M lenses I have (those also include the 11-22mm, the 22mm, and the 18-55mm). I have tested it against my EF 70-200mm f4 IS on a 6DII and it takes pixel peeping to see any difference when each is stopped down a stop or two from maximum aperture. I just got lucky with this particular lens, I guess.