m100
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Senior Member
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Posts: 2,048
Re: Kit Lens Comparison; RF-S 18-45 vs EF-M 15-45, Charts, Imatest, Design
RLight wrote:
First up RF-S 18-45mm, MTF chart courtesy of Canon JP
https://cweb.canon.jp/eos/rf/lineup/rf-s18-45-f45-63/spec.html
And now the EF-M 15-45mm
https://cweb.canon.jp/ef/lineup/ef-m/ef-m15-45-f35-63-is-stm/spec.html
Now the design of the RF-S 18-45mm

And again, the EF-M 15-45

Our counterparts in Australia already have the Imatest Benchmark for the RF-S 18-45, reviewed on the R10 (24MP)
https://www.photoreview.com.au/reviews/mirrorless-lenses/mirrorless-lenses-aps-c/canon-rf-s-18-45mm-f-4-5-6-3-is-stm-lens/
And again, the EF-M 15-45mm, reviewed on the 24MP EOS M50

Looking at the MTFs and Imatests, they're in line with expectations. To say, the RF-S 18-45mm is a "better" lens in terms of optical clarity, although it's operationally less capable on paper (2/3 stop slower on the wide end and 3mm narrower).
Providing as I've personally noticed the samples out there from the RF-S 18-45 have more oomph, than the EF-M 15-45, in my eyes. Don't get me wrong, part of that is the DPR reviewers are more seasoned and like anyone practice makes perfect, sure, and the bodies themselves being used are more capable. But, so is the glass these days, apparently.
I am interested in your take on the RF-S 18-45mm.
Canon is not saying it has a PMo aspherical lens element ?
The RF-S 18-45mm is all glass with two aspherical elements and Canon Super Spectra Coating ?
https://global.canon/en/c-museum/special/exhibition1.html