ngemu

I bought it on ebay for 30 USD.
I did another test today, its actually quite blurry if your shooting at a distance. 
 
 

Holy... 
Cant believe it worked. 
 
Camera: Canon eos-m
Lens: ef-m 22mm f/2
Filter: Ulanzi 1.33x anamorphic
 
Settings:
1:1 Full sensor readout at 1736x1158, mcm rewire 1080p, upscaled
 
First shot was stretched using 1.33x, second shot was stretched using 1.5x Upscaled final footage to 4k Still playing around with recording and export settings and this is new to me. The filter is tapped onto my lens so not everything is aligned at the moment. Some issues with focusing to infinity
 
 

there was another similar topic a little while ago. Someone was looking at using the camera phone anamorphics in front of their lens no idea how it went. i have the letus anamorphic for gopro. It screws to the gopro 4 housing. Whoever made the post thought the letus had the widest opening amongst the camera phone anamorphics if i remember correctly. If i can find my digital calipers i will measure it up i might even find the tv remote if i'm really lucky 🙄. At the moment if i run a tape across the top i measure a 22mm opening.
how that would vignette i am not really sure. for posterity, i could cobble something together  but that wont happen today.

thumbs up, heart0less your all over it. But i think i will have a play with mine anyway for my own personal knowledge 

It's already been done quite a few times and looks quite good, actually! 
Don't worry about the distance between your lens and the anamorphic adapter - as long as it's not some crazy 2 /3 cm, it won't really matter. 
Step up rings are your friends! 
 
Here are some videos:
 

There is no adapter with image stabilization.
You will need a lens with image stabilization such as IS, OS, or VC based on the manufacture. In my opinion, Canons IS system is the smoothest and doesnt 'jerk' the video. As far as speedboosters, i believe metabones autofocus faster but the difference is negligible compared the cheaper viltrox. 
There are many tips on how to get stable footage handheld. The most important would probably be weighing the camera down with a heavy battery and a adding a cage or a better grip. Neckstraps, tripods, and gimbals are other options.
I also believe there are some companies like steadxp(?) using gyroscope technology which is pretty amazing but you are limited in some shooting modes and will add to your post production time.
If none of these answers satisfy , m4/3 cameras have the best IBIS, although nothing compares to HyperSmooth by gopro.
 
Everything has a trade off unfortunately. 
 
 

There is no adapter with image stabilization.
You will need a lens with image stabilization such as IS, OS, or VC based on the manufacture. In my opinion, Canons IS system is the smoothest and doesnt 'jerk' the video. As far as speedboosters, i believe metabones autofocus faster but the difference is negligible compared the cheaper viltrox. 
There are many tips on how to get stable footage handheld. The most important would probably be weighing the camera down with a heavy battery and a adding a cage or a better grip. Neckstraps, tripods, and gimbals are other options.
I also believe there are some companies like steadxp(?) using gyroscope technology which is pretty amazing but you are limited in some shooting modes and will add to your post production time.
If none of these answers satisfy , m4/3 cameras have the best IBIS, although nothing compares to HyperSmooth by gopro.
 
Everything has a trade off unfortunately. 
 
 

Mosiac engineering filter installed on the camera, tested with the kit lens ef-m 18-55 and the ef-m 22mm. MCM rewire, full sensor read out, upscaled to 4k
Aliasing and moire is still present but reduced enough that I dont have to throw away as much footage.
 
 
 

Mosiac engineering filter installed on the camera, tested with the kit lens ef-m 18-55 and the ef-m 22mm. MCM rewire, full sensor read out, upscaled to 4k
Aliasing and moire is still present but reduced enough that I dont have to throw away as much footage.
 
 
 

Mosiac engineering filter installed on the camera, tested with the kit lens ef-m 18-55 and the ef-m 22mm. MCM rewire, full sensor read out, upscaled to 4k
Aliasing and moire is still present but reduced enough that I dont have to throw away as much footage.
 
 
 

hope i can also contribute to how awesome the eos m in 2.5K 3x crop is
"Wissenschaftshafen"
ML RAW 12bit
recorded at 2520 x 1054 in 3x Crop Mode
upscaled to 4096 x 1716
23,976 fps

export in MLV App with fixed dots etc.
edit in Davinci Resolve
grade in Davinci Resolve and FilmConvert Nitrate
Film Stock Fuji Velvia 100

Eos m with magic lantern. 
At 150 dollars, its a camera that is accessible to many.