The Canon M50
I really like this camera, and I really like the gear that's been put out for it. The m50 is what I've been using since 2020, but it has since been upgraded to the m50 mk2. The MKII has improvements for video and autofocus, while keeping the same sensor and body shape.
A couple things you should know if you're thinking of buying it. It's a crop sensor, mirrorless, digital camera. It has a specific set of lenses made for it, and at the time of this article, it might not have anymore made. It can shoot 4k video at 24fps, and 1080 up to 60fps. Canon has software to connect to a pc, but there is no specific software to turn it into a webcam.
It has a body that accepts a class of lenses generally referred to as EF-M or EOS-M. When looking for lenses, you'll need to pay close attention to this initialism to make sure you're getting a lens actually made for this body.
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Canon has a decent selection of lenses for the m50, and usually comes with a 15-45mm kit lens that you will most likely want to improve upon immediately. It does however offer image stabilization, which means as long as you have the light for it, it can be a good all purpose lens.
There are a couple of quality prime lenses that Canon has put out, but when compared to their other lines it is quite limited. The 22mm is extremely small, and turns the m50 into a decent run and gun camera, with an extremely low profile. The 1.4 fstop on the 32mm will get the best lowlight photos out of any of Canon's offerings. The 28mm macro is the only prime with image stabilization.
In terms of zoom lenses there also wasn't that much to talk about. The 11-22mm is the only lens in this range that doesn't have Image Stabilization, and considering that almost none of the other companies made zoom lenses or image stabilization, if that's what you need, these are what you get.
Since Canon only made a couple prime lenses for the EOS-M line, it was up to other companies to step up, and Sigma knocked it out of the park. The three prime lenses they put out cover the bases that any starting photographer should need. With high 1.4 apertures, each of them is capable in low light, and the sharpness you'll get from them is terrific. Sigma included auto focusing into every lens, which not every other company did.
Viltrox made a competing set of lenses at lower prices to the Sigma. They cover mostly the same needs, but the build quality is lower. They have physical aperture rings, which can be appealing to some.
Rokinon / Samyang Lenses
Samyang Optics is the parent company that sometimes packages their product as Rokinon. Generally most of the ef-m lenses put out by Samyang have been without auto-focus. So they tend to be cheaper in general but they do come with some addendums. Samyang made more lenses than anyone else, though, and so for some circumstances, if you want an EOS-M mount, it's the only game in town.
They have put out a couple of fisheye and wide angle lenses.
Moving on to just regular old wide angle lenses. Again, no autofocus and no stabilization. With wide angle lenses, sometimes that's not a problem, because often times you'll be setting them to infinity anyways.
The standard primes are where things get a little interesting. Although none of these lenses have autofocus, some of them have extremely high apertures, which means they should be able to handle low light situations extremely well, if you can manage to focus on your subject.
Telephoto lenses were also made, but considering these don't have autofocus or image stabilization, you are going to want to truck these on a tripod.
And last but not least, they made a 300mm mirror lens telephoto. This thing is kind of weird, produces a donut bokeh, and basically cannot be used without a tripod.
Let's look at some other companies that cover some lenses that might not have otherwise been covered by the previous companies. Canon, and Sigma covered most of your bases, but there's a lot of oddball other options out there.
The Laowa 4mm is a crazy fisheye that produces a circular image. It's an extreme case, but it's worth checking out for its uniqueness. They also make a 9mm that rivals the Samyang fisheye.
Laowa seemed focused on niche offerings and also produced a decent macro lens.
Meike also produced a number of lenses for eos-m, and their offerings tended to cover some missing options, starting with some fisheyes.
Meike also made a 50mm with f0.9 aperture which will make night shots look they were taken during the day.
One of the more interesting offerings from 7Artisans is the 18mm ultra thin prime. It's so thin, it will turn your camera into something that feels like a phone.
7Artisans actually made quite a few lenses for the EF-M line, so here are a couple others. They made three f0.9 lenses, but all of them perform below their price point.
Mitakon ZhongYi also produced some interesting lenses.
EF to EF-M Adaptors
There are a few companies that made adapters to allow the m50 to accept lenses from the EF lineup. This can vastly expand your repertoire, especially into the long telephoto range. It's worth mentioning that once you pick one of these up, it might be better to start holding off buying specific EF-M lenses that might be ok, and start upgrading to great EF lenses. That way your glass will be transerrable to a great EF body.
At a certain point in your time with the m50, two things will happen. You'll run out of viable ef-m lenses for your needs and interests, and you'll notice a lens in the EF line that either covers something you can't get, or has improvements over the offerings available in the ef-m equivalent. Things like primes with image stabilization or zooms beyond 300mm just aren't available until you move out into the ef lineup.
So what can you get for yourself? Well lots. There are hundreds of lenses made by lots of companies of varying quality. Canon themselves have lenses at all ranges, apertures, and even multiple quality versions at many sizes. Let me just pop through a couple I think are worth looking in to.