Here’s my review of the EOS M Adapter.
- Build quality
- Detachable tripod mount
- Enables the use of any EOS lens on an EOS M camera
- It canât change the laws of physics – many EOS lenses arenât ideal matches to the M cameras due to their size
- Auto-focus on the M cameras isnât as good as on a top of the range DSLR and this adapter canât fix that
The range of EF-M lenses is slowly growing but is limited. Although these lenses are good, EOS M users may be frustrated that their favourite EOS lenses arenât replicated with an M version.
The existence of this adapter, to a great extent, eliminates the frustration.
Trawling through the Web Iâve found not a few negative reviews about this adapter with users complaining about the expense, that they donât need it and that it is pointless with the diminutive M series of camera.
None of these criticisms make any sense to me. If you donât want/need it then donât buy it. If itâs too expensive and youâre prepared to risk a cheaper, 3rd party solution, then go for that. If you think the M series using large lenses is pointless, fine.
For me, my first thought was âwow, thatâs brilliant!â. Why?
Well, why not? If I were an existing EOS DSLR user, with a stack of good lenses, and got an EOS-M camera as a lightweight âwalkaboutâ camera, there could well be occasions when Iâd want to use one of my existing lenses with it. The smaller primes, for example, fit quite well on the diminutive M100. And, if I owned one of the ultra wide zooms (EOS-S 10-18MM STM etc) then being able to fit it to the M body is quite appealing.
The adapter just fits onto the M camera in the same way that an extension tube would. EOS EF/EF-S lenses then fit onto the front of the adapter. Then you use them, itâs that simple.
On the latest generations of the M cameras, the imaging chip is the same as in the latest Canon EOS APS-C DSLRs and the image quality will, therefore, be identical to those DSLRs.
Read the above again. That alone is compelling reason to get the adapter if you already have EOS EF/EF-S lenses, especially the smaller ones.
The smaller lenses work very well with the adapter. The EF 50MM F1.8 STM works well on the tiny M100. Yes, the combination looks a little odd, but it works. And this is a full frame lens! The quality is fantastic.
The aforementioned EF-S 10-18MM STM also works well on the M100, with excellent image quality to boot.
The auto-focus speed is determined by both the camera and the lens. The later EOS M cameras have good auto-focus but, no, they canât compete with a high end EOS DSLR and this adapter canât change that. So, if you are used to the auto-focus speed of one of these DSLRs youâre going to notice the speed reduction when attaching the same lens to an M series camera. Donât blame the adapter for this – itâs just reality and you canât beat it.
Iâd argue that the EOS-M cameras arenât designed for use as a sports/wildlife camera and it would be totally unrealistic to use one of these cameras for such a purpose. But, then again, Iâm biased because Iâm a landscape photographer who also likes a walkabout camera for taking family scenes and the like. AF speed is pretty much meaningless to me.
The tripod mount suddenly makes this adapter a huge asset. The ability to fit any lens, however heavy, to this camera and put it on a tripod without any concerns about the lensâ weight damaging the camera is a huge advantage. The same goes for macro work. Canon do a fine EF-M macro lens, but if I owned the EF 100 macro lens then this adapter makes it viable with even the M100.
But why do this if I own an EOS DSLR? Itâs a good question, but my thinking is that handholding a DSLR with a medium sized lens on it whilst having the EOS-M camera on a tripod is better than doing the opposite. And, as a landscape photographer, I frequently have one camera on the tripod and another handheld… But, thatâs just me.
Many reviews list limitations as negatives/cons. I donât think thatâs right. I mean, if you buy a Volkswagen Golf you donât complain it wonât compete at a Grand Prix. So, my review list my equipmentâs limitations as basic facts and not criticisms.
- Makes the camera bigger. I felt it was OK on the M100 but your mileage may vary.
- Canât make the camera auto-focus any quicker. But it wonât make it slower. But if a lens focuses too slowly then thatâs the reality of the M systemâs AF system. The adapter isnât a factor here.
This adapter does what it says on the tin, and it does it well.
If you already own some EOS lenses and have added an M series camera to your kit then it gives you the flexibility to use them.
If you are just getting into the Canon system, it lets you 1) use EF/EF-S lenses on an M series camera when there isnât an equivalent EF-M lens and, 2) have lenses that will fit an EOS DSLR should you later decide to get one.
So itâs simple. If you have an M series camera and want to use an EF/EF-S lens on it, get the adapter. If you donât have/want EF/EF-S lenses then thereâs no need for the adapter.
Third party alternatives
The Canon adapter is expensive. But it works. And it has the tripod mount.
The third party adapter will be cheaper. If it is properly built (is exactly the right size and the electronic connections are correct) then it should work. The build quality wonât be as good and if it doesnât have a tripod mount then its usefulness is compromised, in my opinion…
Get the adapter from…
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