2eyesee
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Senior Member
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Posts: 2,308
Does building an EOS-M system with adapted EF-S lenses make sense?
Sep 12, 2019
I currently have a Sony RX10 (the orginal) and was looking at getting in interchangeable lens system that would give me more versatility – more reach with a telephoto, wider with a wide zoom, and better low light and shallow DOF with a prime lens.
Being on a budget though I can’t get over what great value the EF-S STM lenses are compared competitors offerings. In particular if I look at wide angle zooms, I can pickup the EF-S 10-18mm STM for 1/3 the price of what Sony, Panasonic and Fuji offer.
I’ve been looking at the SL2/SL3, but the electronic viewfinder of the M50 appeals a lot more than an optical viewfinder, as I do a lot of video. I realise neither of these options will give me 4K, but 1080p on the M50 seems decent enough – better detail than the SL2, going by DPR’s Video Stills Comparison anyway:

So the EF-S STM lenses really appeal as they are so affordable and offer decent performance, and the M50 appeals as a body.
Now here in New Zealand, Canon are offering the M50 + 15-45mm with a free EF to EF-M adapter plus EF 50mm f/1.8 lens. It seems like a great deal, as I would plan on adding the EF-S 55-250mm STM for my son's sport anyway. I have considered the EF-M 55-200mm, but the 55-250mm is cheaper, a bit faster, a bit longer (which I need), and from reviews probably a bit sharper.
All this leaves me wondering if I should just leave the adapter on the M50 body and build a system on EF-S lenses to put on it.
I was just interested in feedback from people who are using their EOS M bodies pretty much exclusively with adapted EF lenses, how well this works, and if it makes sense what I am considering.
Thanks for any feedback.