Speed Booster or Adapter for your Canon M50? 

Mark, describing the difference in such a way that it is easier for a beginner to understand, i appreciate. I own the Adapter but now i will get the speed booster because now i understand the options it will provide me. Thank you for what you are doing, and the link.

I’m watching your videos and despite English isn’t my main language, your explanations are so clear, that i sometimes understand the theme better with your videos than with videos on my native language. Great work!

And I almost sold my adapter since I had the speed booster. Now I’m keeping them both. Thank you for sharing

Good summary, I started with the adapter and have since bought the speed booster. I tend to have my nifty50 on the speed booster for the wider angle and bokeh effect, then the adapter on my zoom lens. Great combo I reckon, although my speed booster seems to be missing it's software... Still works and I normally manually focus anyhow. Im on the old m3 but still takes fantastic shots.

I love my M50ii! But after watching countless videos of creators jumping ship to Sony, part of me wonders whether or not it’s worthwhile sticking around to see what’s up with the EF or EF-M series… would love your point-of-view in any upcoming videos!

I bought the Viltrox Speed Booster to use with my Helios 44-2 and it is now my favorite combo for my M50. Using it 90% of the time.

Great summary (as usual)! I have both for very specific reasons. I have the straight adapter for use on my EF-S 55-250 which gives longer reach than the native M lens in that category at a lower price point, and also for my Sigma 17-50mm fixed f/2.8 zoom which is a lovely (albeit bulkier) replacement for the kit lens and great in low light. But I have the Speed Booster for use with my vintage Helios M44-2 EF mount adapted lens for exactly the reasons you described - namely, the intended wider field of view and the artistic effect of the classic “swirly Bokeh” with that lens.

The easy answer is get both. You need both. And while you are on it also buy a tele-converter. (However it might be a bit complicated to get a Metabones EF-M / EF speedbooster ... since they ship from HongKong) and no shop has them on the shelf. Some has the viltrox... but that´s comes with visibly inferior image quality in regards of sharpness.

Hi, Mark! Thank you so much for every single one of your videos, really great. I just get the M50 mark ii and a good guide like this is really helpful, I hope you keep making content for the M50, at least for the M mount, beginners like me need comprensibles messages like yours. Hope you doing fine, gracias.

I have both, find myself using the regular adapter the most 😊

I just received 2 adapters…ordered via Amazon yesterday….EF-M for FD and EF-M for EF/EF-S lenses. Still learning my M50 Mark II, though (bought it over a year ago). I got a Canon A-1 with 4 lenses and Rebel EOS T2 with one lens in a lot of cameras I won in a silent auction a couple of years ago. Decided to try out the 5 lenses.

Thank you so much for this clear, concise explanation! Just ordered a speedbooster along with a 50MM lens for my M50. Very excited to try it out after watching this!

I watched your last video, thank you so much for giving us your opinion and all of this information, this will be my first time using a "professional" camera after wanting one ever since graduating High School and your videos are in very helpful for me to understand the photography world. I wish you the best!

Thank you for this video - almost went with a speed booster but only have EFS lenses so that would have been a huge mistake. Appreciate the info!

Hi Mark, I had to revisit this video, after some time, as I was unsure of which way to go the first time around. Having taken the time to review the options, and rethink about what I was looking for, it's the adapter I want, not the speed booster. I am not looking to change my M50 ii anytime soon but wanted to consider the EF & EF-S lenses for their quality. Too bad Canon abandioned us M series owners. Lesson learned Canon. I'll be buying used. Thanks for your info and clear presentation.

Finally the video I was looking for. Thanks for taking the time to put this together for us. Thumbs up 👍🏼

Oh boy, imagine the speed booster for Fuji X-Mount. I really want to have my SONY E lenses on my XT-1

Ok this makes total sense. You are the best! Thank you!

Most of my lenses are EFS or M lenses. My only EF lens is the 50mm 1.8. No need for the speed booster for the 50mm lens, since I have a Sigma 30mm 1.4. So…I just use the Viltrox non-speed booster adaptor.

0:23 I mean most of these optics have too many elements anyway so adding a extra element that is good quality isn't going to hurt.

thank you - i have a Blackmagic with 25mm lens but the crop factor is too much...i would like a Wider field of view ...hope the booster will help me - nice video thanks for making it...

Thank you for going into such detail. Extremely useful stuff!

I was just thinking about this I don't have any EF or EFS lenses but I may eventually move to a full frame camera and would invest in those lenses. I plan on sticking with Canon. I have a friend that is a professional and has lots of Canon lenses I could borrow so I may get both starting with the regular.

This solves some questions i had 😅 I have a m50 mk2 with a 24mm f2, 50mm f/1 and 70-200mm f2

I love my speed booster. You can also remove the EFS adapter from some of the EFS lenses, and they will work with the speed booster also. I actually cut the plastic EFS mount off of my EFS 10-18mm lens so I could use it with the speed booster on my Canon M6-II and it works GREAT for video when I need a wide angle.

I beleive you are wrong about speed boosters always reducing resolution. The speed booster does need to consider the lens design. A well corrected lens is going to send the light to the sensors in cones with points st the sensor. The speed booster only needs to increase that angle and it is the same range over then entire frame, regardless of the lens focal length or aperture. If the original lens has aberrations the speed booster may make it worse but I have used speed boosters on my Nikkor 180mm f/2.8 AI and it still out resolves my APS sensor. My experiencxe is that these work very well on very good, sharp lenses at full aperture..

Why would I do buy a speed booster? Because of the crop factor. Easy to answer. IF I want to use a 11 to lets say 24 mm prime lens, I have no other option. Sadly. Especially not with a good f-stop and auto focus. I wish there would be lenses that have ultra wide angles to counter the crop factor. But there aren't.

Which one would you say is best for shooting beauty content or vlogging? Thanks

A lot of lenses are sharper in the center than in the periphery. An adapter will crop off the periphery effectively giving you a sharper image than on a full frame camera. An ideal adapter which introduces no distortion will preserve the peripheral distortion of the full frame lens. Real life lenses will of course introduce transmission effects.

So clear thanks a lot, I love the exemples and you so clear

Amazing content with precise details. Thanks for guiding.

Really like your explanation. I'm thinking of buying the adapter

I have both adapter and speedbooster and I regret I bought speedbooster. Image quality degradation is huge. Only center of the image is acceptable, rest, especially near the corners is a dissaster. It's a waste of money. Yeh, photos look like from full frame but only in screen resolution.

Why don't they make a higher quality speedbooster?

Bought both of them...depends on the shoot you want to have and the kind of lens you have or you want to use....both of them are from Viltrox....

Hi Mark - so would the booster essentially turn a EF-M 11-22mm into a (rounded up) 8-16mm lens, with the bonus of having it a few f-stops lower increasing the overall aperture? I like the idea of just having to buy the booster without buying such an expensive lens for the same result, as a wide aperture, zoomable lens with a decent range is very pricey. So I wouldn't mind a small degrade in quality if it meant I can achieve a slightly wider FOV as well as having a few f-stops lower.

We need both because the speed booster does not support ef-s. I use the speed booster for the nifty fifty. It makes it act like f 1 .2 instead of f 1.8

Just the information I'm looking for. Thanks

Just got the sigma 18-35 and gonna get the adaptor for now. Great vid man tho

Hello, excellent video! Question: I have an excellent Nikkor 50mm 1.2 lens I want to use on my M50. I got an adapter for Nikkor to EF-M but the crop factor is to big. What would be an effective way to fit than lens to my camera in all "full frame glory", so to speak? Thanks!

Another classic brotha, thank you!!!

just buy both. I got my adapter today. Later I will buy speedboster

really helpful! thanks for making this video

Your review is just amazing!

thank you so much.

This is phenomenal! Thank you!

Hello Mark, the Artisan plain adapter coming from China is a reliable one?

I have a m50 mark 2 and with the speedbooster and a low light lens what higher priced cameras would it be equivalent to when decked out? Also a few years down the road I want to upgrade to a 4k/30fps full frame low light camera what would be the best priced camera? Im gonna get used so the cameras around now will be what im getting in a few years to save money.

I know that video is a year old, but I think there is something misleading here. Yes, in mathematical terms, you are right, but in practicality, I don't see the advantage. I have both using Tamron 18-400mm on Canon M6 Mark II. The widest (18mm) with a speed booster, may give you a true full frame of 18mm, but by the time you finish cropping (Cause you see the edge of the booster in the frame) you end up with practical 29mm (On Canon APC-S) As to the 400mm side, you get true 400mm, but you lose the cropping factor that gives you 640mm with the adapter which you can simply achieve by zooming out. As for light, I actually get a much noisier image with the booster so I don't really see the point. Saying that "you get two different focal length is misleading if you really expect to get a full frame image.

Thanks for the solid information. 👍

Excellent and very informative video.

Can you please suggest a speed booster to convert from nikon f to sony e apsc.

is it work on a sigma 16 mm lens for canon m50 mark ii

so if i were to buy sigma 18-35/1.8 DC HSM CANON and mount it to canon m50 mark II... then should i get a speed booster? that's gonna be my first youtube setup so sorry if u are get tired of those questions.. - would really really appreciate ur recommendation! (just need a wide lense cuz sigma 16 f.14 turnt out to be to narrow for the small room i am shooting at)

Great video Sir! Just bought a viltrox adpter for my canon m50 mark2, can i use my friend nikon d90 kit lens using this adapter? Thank u very much!

best Speed Boosters are from METABONES, but they are very expensive :D

I have a M50 mark II. I recently purchased a speed booster. However, when I use it with a Tokina 11-16mm lens I get vignetting on 11-13mm focal lengths. Is this normal or a defect? Do I need to change a setting to remove the vignetting?

Wow...wat an constructive message from him👍

Maybe a stupid question, is there a speed booster that works with the eos rebel T5 / eos 1200D ?

I have the speed booster & it’s def harder to focus and needs to be on a tripod almost all the time cause any movement even the tiniest will make the image blurry, if anybody has any suggestions I’m open to trying some out

I have been using dumb speed boosters with M43 cameras for years. I have a canon EF adaptor and a minolta md adapter. While the glass does not allow a canon or md lens image circle to correctly cover a M43 sensor it does a reasonable job of emulating an apsc image circle over a m43 and also gives a boost to speed through the light concentration. As you mention it also gives the equivalent of each lens having the equivalent focal length and aperture of two different lenses when a straight adaptor is used and having a Sony A7 as well it gives me three lenses in one. I will also point out that the results one gets from one speed booster may be different to another speed booster. I use Zhongyi lens turbo and after a lot of testing, much on walls and fences for geometry and detail, have come to the conclusion that the results using the lens turbo were in no way inferior to using a plain adaptor with the lenses I use. So I would say too any crop sensor camera body owner look at images on flicker using the combination you may get. Then go ahead and get a speed booster. You should also do online research to make sure the one you pick will perform the electronic functions that you require if you are not doing MF as I do.

wait! I can still use ef-m to ef-m+efs lenses? Am I getting that correct? or do I need to buy multiple? help.

After reading all of these comments I feel kinda stupid! Lol. I only use my canon m-50 for recording vids & taking pics for holidays. I have a wide angle lens & a bigger lens I bought as an international version. I bought my canon as an international camera, too, & love it. I got the white one. A lot of this info is foreign to me. Very good explanation of the speed booster, tho. Subscribed.

Will the Viltrox Speed Booster work for the Canon M50 with a Laowa 9mm f/2.8 manual focus lens for Canon ef-m mount? I'm trying to get more light in and wider 4k shooting real estate. Thx!

Melbourne B-roll! Wassup neighbour! X

Is this lense compatible Canon RF 35mm f/1.8 IS Macro STM For canon m50 mark ii, if you have an adapter?

A complete guide for speed booster for song zv e10 camera. Vlogging test . Auto focus test . Please make a detailed video. No video available on RU-vid sir.

After buying virtually every EF-M lens focal length available and taking them traveling with me I've decided I just need a 15-45 mm (24-70 FF equiv) but fast. The kit lens is not fast enough. My 22mm pancake is nice but not wide enough on my M6 II. Now I'm looking at EF lenses and using the speedbooster to try to get me into the focal length that I need. The problem is lenses with that range that are fast are already very large and heavy and then adding the speedbooster makes them uncomfortable. Oh, how I wish Canon's 24mm was an EF and not an EF-S lens. Anyone have any suggestions on a 24-70mm FF equiv fast lens for EF-M either using an adapter or speedbooster? I find myself leaving my 22mm f/2, 32mm F/1.4 and 56mm f/1.4 in the hotel when traveling. There are wider zooms but slooowww. There are wide fast primes but they're primes.

I like your videos thank you for putting out some information on the Canon M50 I think it is a really solid camera that doesn't seem to get a lot of credit. Just one small critique of your videos of which I have watched two today. It appears that you are looking above the camera in the videos so instead of appearing to talk to us you are kind of looking over my head. Not trying to be negative because your videos look really good just trying to help.

Question for you. I have a M50 and a collection of 5 EF-M glass. I'm just a photographer with no EF lens. Do you think its worth it to start investing in a speed booster, Adapter and EF glass or in the long run just better to go with a RF second camera like RP and/or R7? PS I do want a second camera. The question is over the value of delaying getting a second camera.

I have an EF 75-300mm with Viltrox speed booster should I invest in the EF-M 55-200mm... Thoughts?

Are there any budget 14-16mm lens that can be added to the viltrox speedbooster to give a nice full frame when recording in 4k on the m50 mark ii?

Hello, i have a m50, and i'm planning to buy the 55-250 or 18-135 EF-S lense, should i buy the speed booster or adapter?

Mark, does the adapter(not the speed booster since I need to work with EF-S lenses) fit on the camera when the smallrig cage is on the camera? It looks like the tripod portion of the adapter may interfere with the cage?

Liked and subbed 👍 Just got an EF M-2 mount adapter but it's not compatible with my canon m50. Did I miss something? Any help would be much appreciated. Thanks

I have the 50mm EF lens, but I also have the 10-18 EF-S and 55-250 EF-s lenses, Will these work on the speed adapter?

Hi, for canon m50 mark2, which is best buying efm lenses with high price or buying ef lenses with adapter in budget ?

Bought the Viltrox Speed Booster M2 off your affiliate link ;). Question though: Using it with a Canon 50mm f/1.8 on the Canon M50, does it: Make my focal length effectively 35mm like a preferred street photography lens like on a fujifilm x100V? How does this work in regards to the crop sensor? Essentially we are given a non cropped image from the Canon 50mm, i.e. a full frame image? I'm getting confused with the 35mm image/focal length vs the full frame non-cropped image. Is going from 50mm to 35mm achieving the wider field of view, giving us a NON-cropped image, however this image is squeezed onto our aps crop sensor.

Just got an R10. I'm using mostly for action sports indoors (i.e. basketball, volleyball) where I've found it difficult to get proper lighting. Would you suggest the booster for increased lighting? thanks and sub'd

Time to get the speed booster

Hey Mark!!do you suggest the m50 mark2 for beginner filmmakers who want to use this camera for paid works (not very proffesional work.... I mean as a side income). Is it capable of delivering good photos and videos when paired with the 50 mm lens? 😊😊

Hey, what adapter would i need for the Canon M50 Mark ii for the M42 lens and the ef-s lens ???

Hey Mark, I've seen a couple of your videos and i have to ask after watching this video. Does the speed booster/regular adapter have an impact on autofocus performance and optical performance I'm planning to buy an m50ii and pair it with the sigma 18-35 1.8 and 50-100 1.8. your thoughts?

I have the m6ii and have become interested shooting longer range. What do you think of using an adapter for an ef 70-200? Is there ever going to be a possibility of a faster lens than the canon ef-m 55-200?

Hello friend , can I ask you about my canon m50 mark 2 . I want to use it with Meike adapter Eos M to Eos ef without speedbooster (NO SPEEDBOOSTER ) + Meike 85mm f1.8 ! Problem: the problem is I got a mesege in the start , this message >Push and hold the lens switch in 🔼 direction and then rotate the lens to enable shooting< Soo, the problem is , the Meike 85mm f1.8 it doesn’t have any botton for rotate . Please can you help me thank you !

Great video

what is the adapter for m50 mark 2 to use rf lens mount

Opinions on the internet: “Bullets can kill you!” “That’s a lie, I’ve shot myself twice a day for the last 30 years and have never felt better.”

Would have helped to show some video samples too. In a couple of videos, I’ve seen that 4K using speed booster doesn’t crop that much. So am a bit inclined towards speed booster.

Mark, question, a person who owns a Canon M50 Mark II do they have to purchase EF-M lenses continually, or can a person purchase EF lenses and use an adapter (not a speed booster) to use on the Canon M50 Mark Ii? The thought behind the questions is that if I want to upgrade to a Canon R potential, I could use the EF lenses. I would love your feedback. Genuinely appreciate your excellent education and videos. Thank You!

Using lenses for burning insects?? Dude got some issues

How is that if it’s in Focus Just lies

Nope. The f-stop doesnt change the aperture so speedbooser doesnt affect the dof by itself. It does that because it changes fov and the distance from the subject changes. Dof is not shallower compared to ff but you get more light.

So what does the speed booster do for ASP-C lenses? Is it only good for full frame lenses on the canon m50ii?

Thanks for this review. I don't mind if it gives my pictures a more vintage look.. I have a Yongnuo 35mm F2 lens I use on my 90D and R7 and its sharp, but nothing compared to a Canon 35mm. But I love the look and its one of my absolute favorite prime lenses. Just give my images a unique vibe

Hi can you recommend the best speed booster and adapter for the Canon 90D Thanks!

I'm still confused. So I am an aspiring real estate photographer. I have a Canon M50 Mark ll. I bought a EF-M 11-22mm F4.0-5.6 IS STM Lens. Because of the crop factor of 1.6 my 11mm becomes 17.6mm. IF I get a speed booster will I have a larger field of view more accurate to 11mm or 12mm?

why dont use the viltrox 33mm or 56mm that already have ef m mount? Is this not quality enough?

I have both Viltrox adapter and speedbooster. I got a M6 mark II. Now that everyone is buying the RF lenses, I am still using EF, EF-S and EF-M lenses that I already have.

I flipped back and forth on my opinion. I had the booster and then sold it. Then bought it again because I missed the versatility of it. Then sold my M50 with the booster. My final opinion was I liked having it. I would not hesitate to recommend it to anyone that's looking for versatility with the lenses that they have. It's another tool to add to your kit.