The question that remains unanswered is how much sharpness you lose doing this. Compare the results of the adapted 16-35 on an R7 with the lens set to 22mm and on the same camera with a regular (no glass) adapter and the lens set to 16mm. You seem very impressed by the 'speed booster' feature but the same adapter also makes the 16-35 into an effective 10-22mm wide zoom by countering the crop factor. For wide angle fans, this would seem a good feature compared to buying the Canon 10-18 EF-S to be used on a regular adapter. The price is similar but you do gain that bit of speed as well. Again the question is how the images compare between the smaller, slower 10-18 and the boosted 16-35.
18mm ish. As far as the Af that depends on the lens. The ef lenses I have used on this work great but I can't speak to all of them as ive not tried them all.
Any of them to be honest. You will get the most benefit from it with low-speed lenses, F4+ as well as wide angle lenses to retain some of the wide angle. my EF 16-35 F4 on an R7 with this booster would effectively be something like an 18-40 F2.8. With the standard adapter that same lens is roughly a 26mm-56mm
Mechanical wise it works just like the standard canon adapter, it just passes the lens pin info directly to the camera. Most canon EF lenses work with no issue on adapters. 3rd party wise mileage could vary.
Hello! Thank you for the video! One question, do you know if the EF-EOS R 0.71x Speed Booster Mount Adapter, compatible with Canon EF lenses to Canon RF-Mount, works well with the new Canon R50?
have this exact same speedbooster, Viltrox Ef-R3 and I have autofocus issues when a subject is not close to the lense and I'm on 24mm, when i zoom in to 70mm the autofocus starts working...I have it paired with EOS R
hi i bought a r7 with RF 24-240mm F4-6.3 IS USM. and I have my old lens too Tamron 18-200f/3.5-6.3. if i buy the Viltrox booster.. i can use my old len .right?
If it’s an EF lens than yes. Good luck finding one of these new though as Canon has bullied Viltrox into pulling it from stores. You may be able to find one second hand.
I trying found information about uses speedbooster on macro photography, but I didn't found nothing about. If this adapter incresase the light on cropped sensor , could this adapter improve light capture for macro? photography?
Thanks for the video. I currently use the speed booster with EF lens on my m-50. I’m thinking of upgrading to the r-7 for better dynamic range when shooting live stream videos? Or do I wait and save up for an R6?
Hi, i have a question :) I already have the R7 and with the adapter Canon EF-EOS R. My question is about, if i buy a EF 35mm lens, which will be the total mm using it with the adapter on my R7? :o Maybe i must multiplicate 35 mm x 1,6. I think that's the numer, not sure :)
Do you think the Sigma 150-600 Contemporary will be working perfectly on the R7 with the EF to RF stuff (Talkin about Autofocus for example, cause the R5/6 did have some AF issues)?
If it had issues on the R6 There’s a high probability it’s going to have an issue on the R7 and R10 as well. Those issues tend to be on Sigma’s side more so than Canon’s. I haven’t seen anything to make me believe they’re changing anything on the RF mount for these two new cameras that would make anything work any differently.
@@RexxReviews Thanks for answering, I guess I just need to live with it then, or buy an RF lens in the future. And maybe the issues aren't that big, but from what I've seen on the internet it is a big issue but maybe they're overreacting haha. Anyways, enjoy your day!
So the Viltrox is good if you want to have your lens as a faster lens. Using it with telephoto/zooms lenses, not useful if you want the extra reach provided on APS-C sensor then.
For me, the Viltrox EF-R3 doesn't seem to work quite right with the R7. It's my understanding that when using the EF-R3 and say a Canon EF 16-35/2.8 Lens on the R7, that the camera should actually show F2 as an option (effectively fooled by the EF-R3 and then the EF-R3 maps back to physical stops E.g. F2 back to physical F2.8). That's not happening for me and I'm nearly certain I've seen vides where this happens with the Viltrox speedbooster... If I've imagined that, please let me know...
Скажите , будет ли работать матричный стабилизатор IBIS , с обьективами canon EF , через адаптер или через speedbooster ? С чужими обьективами , slgma EF и другими не работает , а с canon EF у которых нет встроенного стабилизатора , работает матричный стабилизатор или нет ??? На canon R7 ...
I'm curious how a speed booster could allow more light through a lens when the lens is already taking in the maximum light it can at its widest aperture.
A speed booster directs the light more towards the center of the lens using a magnifying type of lens in the booster itself. When you put a full frame lens on an APS-C camera the outside edges of that lens are essentially not being used. because the light is being directed towards the center of the lens with this additional lens inside the booster the light is amplified and made brighter, this is how the extra stop of light is being produced. There are videos out there that can explain exactly how it works far better than I can LOL, i just call it magic.
I think the way to imagine it is when you use a magnifying glass with sunlight it's only when you concentrate the same amount of light going through the lens over a smaller area, the suns light can even start a fire. Same effect with the speedbooster... the full frame lens lets in a fixed amount of light normally that is just enough for a full frame sensor but a crop sensor uses only a portion of that light, with the speedbooster all of the full image circle of light is used concentrated over a smaller crop sensor area. I'm looking forward to getting one got a R7 preordered.
Thanks for the recommendation! I think r7 users are thinking about the long run of the RF lenses…Canon committed to make a lot of new rf and rfs lenses…im hoping for an wide angle rf lens(like the efs 10-18mm)…but to be honest the only reason to jump in the new system is to start collecting rf lenses and eventually move from the r7 and r10 to the r6 or r5
Im not - if this speed booster gives me 1 wide lens all the other RF lenses like the 35 and 50 can give more reach at the telephone end also being lighter smaller and potentially cheaper
man what's crazy is I just ordered one on eBay because I assumed there were none on amazon so I sacrificed about a month for delivery time and there were some on amazon, But at least the one I got was 9 dollars cheaper I guess 🤣
Yes, it's like the opposite of a tele convertor so a 1.4x T.C will turn your lens into a 140-560mm f/6.3 - f/8 whereas this speedbooster (focal reducer) turns it into a 71-284mm f/3.2 - f/4 lens
@@DJBastor only if you're mad enough to use the Focal Reducer (speedbooster) and Focal Extender (teleconvertor) at the same time LOL in which case it'll make it 100-400 with extra unnecessary weight and glass 🤣 But seriously when using the 1.4x extender you would use the standard EF-RF adapter not the speedbooster adapter. Please don't take my reply as belittling you as I imagine you got confused about what I was trying to explain but I found the idea of using both reducer and extender at once humourous
i don't think there's any lens that is the equivalent of a 35f1.8oss on sony apsc, for canon. so, a lens that produces a 35mm classic field of view, with an 1.8 aperture, while also keeping the autofocus capabilities close to intact. viltrox is probably $200+. together with the body, thats $1700+. if you're a canon guy/girl or already own glass, then i guess r7 makes sense, but if you're not in the canon "ecosystem", why not buy a7c used at $1500, excellent af and full frame dynamic range, and no problems with the different mounts that canon has. also, rolling shutter seems to be very problematic on r7, might be even worse than sony's current apsc (or close?), since they have to process a 32mp sensor instead of 24.
There are lots of reasons. The a7c is only 24mp FF. 32mp on the R7 is closer to about 60+mp if it were full frame when you consider that a 45mp full frame in crop mode is only about 17mp. The focus system on the R7 is the same as the R3 so it's going to stomp all over and older a7c. The Canon EF 35mm 2.0 with this booster would be about be about 38-39mm at about F1.4 so its not far off. While I would tell anyone looking at the R7 to look at some Sony options the A7c would not be the option I had in mind.
I don’t think this works like you think it works. You aren’t getting any extra light. You are just focusing it on a smaller sensor. That’s great if you weren’t using that light anyway (crop sensor) but pretty useless if you are using it on a full frame camera unless you need a mode that can be only accessed in crop mode. Test it for yourself. The depth of field and field of view are the exact same between the crop mode with speed booster and in full frame mode without.
He is actually correct. when the 50mm EF 1.8 is put on a .71x speed booster the camera sees it as f1.2. The correct Fstop is actually about 1.29 but the camera reads it as 1.2.
@@lastmanstanding5572 no it truly is f/1.2 as a focal reducer (speedbooster) is the opposite of a focal extender (tele convertor) so a 50mm f/1.8 + 1.4x = 70mm f/2.5 and a 50mm f/1.8 + 0.71x = 35.5mm f/1.2 In both cases the camera reads the correct f/stop.
And because of shit like this Canon is losing me and MANY other as customers. They are flat greedy. Going after the lenses is one thing but also targeting the adapters now when its not been an issue for YEARS. There have been 3rd party EF/RF adapters since the EOS-R and this is the first time they have decided to go after anyone for them.
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Here is an Alternative to this from Meike as this one seems so hard to find now. amzn.to/3OtGU4t
hello im a bit confused, I have RF 50mm f1.8, can I use this on my R10?
RF 50 will work without an adapter on the R10
Unfortunately this speed booster is currently Unavailable to buy anywhere.....
Can you use the Sigma 18-35 f1.8 with the speedbooster since it's meant for aps-c sensors?
Yes you can. It worked well on the m6mk2 with the booster viltrox made for that camera line.
@@RexxReviews it should have black vignet around the APC "unzoomed" lens, no one ?
The question that remains unanswered is how much sharpness you lose doing this. Compare the results of the adapted 16-35 on an R7 with the lens set to 22mm and on the same camera with a regular (no glass) adapter and the lens set to 16mm. You seem very impressed by the 'speed booster' feature but the same adapter also makes the 16-35 into an effective 10-22mm wide zoom by countering the crop factor. For wide angle fans, this would seem a good feature compared to buying the Canon 10-18 EF-S to be used on a regular adapter. The price is similar but you do gain that bit of speed as well. Again the question is how the images compare between the smaller, slower 10-18 and the boosted 16-35.
This is a great idea - thanks - what does a EF 16mm lens adapt to on the R7. Is there any drop off in AF speed
18mm ish. As far as the Af that depends on the lens. The ef lenses I have used on this work great but I can't speak to all of them as ive not tried them all.
I have the Viltreox EF-EOS M2 for the M50 and looking to go to an R7. Do I need a new adaptor or would the original one do?
Yes. The R7 is on a completely new mount.
great video, wich lenses did you recommand with this speed boster?
Any of them to be honest. You will get the most benefit from it with low-speed lenses, F4+ as well as wide angle lenses to retain some of the wide angle. my EF 16-35 F4 on an R7 with this booster would effectively be something like an 18-40 F2.8. With the standard adapter that same lens is roughly a 26mm-56mm
The EF 24m F2.8 IS becomes 28mm F2 IS. Good coverage for APSC. Not too expensive either.
Thank you for video. I have R10. Not possible to buy speedbooster in Europe. Tips where?
These are getting harder and harder to find as Canon is bullying/threating places to stop selling them.
Can we use only EF lenses or we can use EFS lenses also with this adpter in R7 ?
This adapter only supports EF
@@RexxReviews Ok thank you sir.
Besides the price what are some other cons? Does the autofocus work the same?
Mechanical wise it works just like the standard canon adapter, it just passes the lens pin info directly to the camera. Most canon EF lenses work with no issue on adapters. 3rd party wise mileage could vary.
Where can I get one , everywhere I have looked they are unavailable??
Is there a speed booster for canon r7 to rf 24-70f1.8?Thanks
hola amigo, y la parte electronica de ese adaptador funciona perfecto?
Hello! Thank you for the video! One question, do you know if the EF-EOS R 0.71x Speed Booster Mount Adapter, compatible with Canon EF lenses to Canon RF-Mount, works well with the new Canon R50?
I’ve used it in my r50 with the Canon EF 16-35 4.0 and it worked fine.
Can i use ef to eos r viltrox adapter to my canon r10 camera
thanks for the video, quick question: do you get the same two benefits when taking stills - or is this only for video?
Yes , works the same for stills.
@@RexxReviewsThanks
Hey do you loose anything like Autofocus with the Speedbooster?
Same question!
@@souravsarangi me too!
Do you know if a battery grip will be available for the R7?
I personally have t heard anything but I wouldn’t rule it out. If so I hope it’s not $350 like the r5 one is.
@@RexxReviews There are no contacts inside the battery chamber of the R7, so no, doesn't look like a battery grip would work.
How's the autofocus in R7?
I'm trying to figure out if my EF-S lenses will also work on this? If they do, it's a no brainer....I'll be getting one.
Not on this, they only added the EF locking on it. I don't think either of the speed boosters they currently have for RF mount works with EFS.
@@RexxReviews boo. coming from 7DmkII I was all excited for a moment. i have a pile of efs. somehow. i didnt try, i just ended up with it all somehow.
Will the booster work for photography?
Yes, it will function the same way in photo mode.
Thank you, that's so informative.
Glad it was helpful!
have this exact same speedbooster, Viltrox Ef-R3 and I have autofocus issues when a subject is not close to the lense and I'm on 24mm, when i zoom in to 70mm the autofocus starts working...I have it paired with EOS R
hi i bought a r7 with RF 24-240mm F4-6.3 IS USM. and I have my old lens too Tamron 18-200f/3.5-6.3. if i buy the Viltrox booster.. i can use my old len .right?
If it’s an EF lens than yes. Good luck finding one of these new though as Canon has bullied Viltrox into pulling it from stores. You may be able to find one second hand.
@@RexxReviews thank you so much
so the Viltrox booster only works for my old EF lens.. not work with new RF 24-240mm F4-6.3 IS USM
@@rAju_shan no, it’s an EF adapter. There is no RF/RF speed booster to my knowledge
Does the sensor stabilization still work?
IN the EF lenses that I use the Stabilization still works.
@@RexxReviews But what about manual focus lenses?
I trying found information about uses speedbooster on macro photography, but I didn't found nothing about. If this adapter incresase the light on cropped sensor , could this adapter improve light capture for macro? photography?
Ef-r2 compatible to r10?
Thanks for the video. I currently use the speed booster with EF lens on my m-50. I’m thinking of upgrading to the r-7 for better dynamic range when shooting live stream videos? Or do I wait and save up for an R6?
Hi my old lens is Tamron 18-200mm F/3.5-6.3 Di II VC B018E .I can use it for my canon R7 with VILTROX EF-R3 Speed Booster. right?
speed booster is not a magic tool for tranforming Crop to Full Fame body,
but in some cases they will alternative for FF body
Hi, i have a question :)
I already have the R7 and with the adapter Canon EF-EOS R. My question is about, if i buy a EF 35mm lens, which will be the total mm using it with the adapter on my R7? :o
Maybe i must multiplicate 35 mm x 1,6. I think that's the numer, not sure :)
With standard adapter is roughly 56mm . With speed booster it would be 40mm
@@RexxReviews thanks :)
Do you think the Sigma 150-600 Contemporary will be working perfectly on the R7 with the EF to RF stuff (Talkin about Autofocus for example, cause the R5/6 did have some AF issues)?
If it had issues on the R6 There’s a high probability it’s going to have an issue on the R7 and R10 as well. Those issues tend to be on Sigma’s side more so than Canon’s. I haven’t seen anything to make me believe they’re changing anything on the RF mount for these two new cameras that would make anything work any differently.
@@RexxReviews Thanks for answering, I guess I just need to live with it then, or buy an RF lens in the future. And maybe the issues aren't that big, but from what I've seen on the internet it is a big issue but maybe they're overreacting haha. Anyways, enjoy your day!
@@RexxReviews Net necessarily. I have problems with my R5 but not with my R3.
So the Viltrox is good if you want to have your lens as a faster lens. Using it with telephoto/zooms lenses, not useful if you want the extra reach provided on APS-C sensor then.
For me, the Viltrox EF-R3 doesn't seem to work quite right with the R7. It's my understanding that when using the EF-R3 and say a Canon EF 16-35/2.8 Lens on the R7, that the camera should actually show F2 as an option (effectively fooled by the EF-R3 and then the EF-R3 maps back to physical stops E.g. F2 back to physical F2.8). That's not happening for me and I'm nearly certain I've seen vides where this happens with the Viltrox speedbooster... If I've imagined that, please let me know...
Nevermind... It appears that the Vitrox EF-R3 is only compatible with the Canon EF 16-35/2.8 L II USM. I have the L USM (not II). Frustrating...
Скажите , будет ли работать матричный стабилизатор IBIS , с обьективами canon EF , через адаптер или через speedbooster ?
С чужими обьективами , slgma EF и другими не работает , а с canon EF у которых нет встроенного стабилизатора , работает матричный стабилизатор или нет ???
На canon R7 ...
I'm curious how a speed booster could allow more light through a lens when the lens is already taking in the maximum light it can at its widest aperture.
A speed booster directs the light more towards the center of the lens using a magnifying type of lens in the booster itself. When you put a full frame lens on an APS-C camera the outside edges of that lens are essentially not being used. because the light is being directed towards the center of the lens with this additional lens inside the booster the light is amplified and made brighter, this is how the extra stop of light is being produced. There are videos out there that can explain exactly how it works far better than I can LOL, i just call it magic.
I think the way to imagine it is when you use a magnifying glass with sunlight it's only when you concentrate the same amount of light going through the lens over a smaller area, the suns light can even start a fire. Same effect with the speedbooster... the full frame lens lets in a fixed amount of light normally that is just enough for a full frame sensor but a crop sensor uses only a portion of that light, with the speedbooster all of the full image circle of light is used concentrated over a smaller crop sensor area. I'm looking forward to getting one got a R7 preordered.
Concentration
Really good video, unfortunately I have all RF glass. I am sure you will help a great many users, very informative!
I saw a film director who did a review on this adapter and found it would create artifacts in the center. He stopped using it.
Thanks for the recommendation!
I think r7 users are thinking about the long run of the RF lenses…Canon committed to make a lot of new rf and rfs lenses…im hoping for an wide angle rf lens(like the efs 10-18mm)…but to be honest the only reason to jump in the new system is to start collecting rf lenses and eventually move from the r7 and r10 to the r6 or r5
Im not - if this speed booster gives me 1 wide lens all the other RF lenses like the 35 and 50 can give more reach at the telephone end also being lighter smaller and potentially cheaper
Is it possible to use eos r7 ef lens?
How is the autofocus
good video thanks
I'm looking forward to using the R7 with the rf100-400mm lens. I wonder what effect the speed booster would have on that combo?
This only works on EF lenses. I am not sure if there is a RF/RF speed booster to be quite honest.
@@RexxReviews While theoretically possible it would change the characteristics of the lens.
These aren't available anymore, at least not in Canada.
does not fit as well unless you get the locking ring version
man what's crazy is I just ordered one on eBay because I assumed there were none on amazon so I sacrificed about a month for delivery time and there were some on amazon,
But at least the one I got was 9 dollars cheaper I guess 🤣
what does this do to my 100-400 ii 5.6 on my r7. will it be f4
Yes, it's like the opposite of a tele convertor so a 1.4x T.C will turn your lens into a 140-560mm f/6.3 - f/8 whereas this speedbooster (focal reducer) turns it into a 71-284mm f/3.2 - f/4 lens
@@noelchignell1048 ok is the focal length not 99 - 397 again? (100*1,4*,071 and 400*1,4*0,71)
@@DJBastor only if you're mad enough to use the Focal Reducer (speedbooster) and Focal Extender (teleconvertor) at the same time LOL in which case it'll make it 100-400 with extra unnecessary weight and glass 🤣
But seriously when using the 1.4x extender you would use the standard EF-RF adapter not the speedbooster adapter.
Please don't take my reply as belittling you as I imagine you got confused about what I was trying to explain but I found the idea of using both reducer and extender at once humourous
i don't think there's any lens that is the equivalent of a 35f1.8oss on sony apsc, for canon. so, a lens that produces a 35mm classic field of view, with an 1.8 aperture, while also keeping the autofocus capabilities close to intact.
viltrox is probably $200+. together with the body, thats $1700+. if you're a canon guy/girl or already own glass, then i guess r7 makes sense, but if you're not in the canon "ecosystem", why not buy a7c used at $1500, excellent af and full frame dynamic range, and no problems with the different mounts that canon has.
also, rolling shutter seems to be very problematic on r7, might be even worse than sony's current apsc (or close?), since they have to process a 32mp sensor instead of 24.
There are lots of reasons. The a7c is only 24mp FF. 32mp on the R7 is closer to about 60+mp if it were full frame when you consider that a 45mp full frame in crop mode is only about 17mp. The focus system on the R7 is the same as the R3 so it's going to stomp all over and older a7c. The Canon EF 35mm 2.0 with this booster would be about be about 38-39mm at about F1.4 so its not far off. While I would tell anyone looking at the R7 to look at some Sony options the A7c would not be the option I had in mind.
I don’t think this works like you think it works. You aren’t getting any extra light. You are just focusing it on a smaller sensor. That’s great if you weren’t using that light anyway (crop sensor) but pretty useless if you are using it on a full frame camera unless you need a mode that can be only accessed in crop mode. Test it for yourself. The depth of field and field of view are the exact same between the crop mode with speed booster and in full frame mode without.
f1.8 + Viltrox SB = f1.4
He is actually correct. when the 50mm EF 1.8 is put on a .71x speed booster the camera sees it as f1.2. The correct Fstop is actually about 1.29 but the camera reads it as 1.2.
@@lastmanstanding5572 no it truly is f/1.2 as a focal reducer (speedbooster) is the opposite of a focal extender (tele convertor) so a
50mm f/1.8 + 1.4x = 70mm f/2.5
and a
50mm f/1.8 + 0.71x = 35.5mm f/1.2
In both cases the camera reads the correct f/stop.
Now it is an illegal product.
And because of shit like this Canon is losing me and MANY other as customers. They are flat greedy. Going after the lenses is one thing but also targeting the adapters now when its not been an issue for YEARS. There have been 3rd party EF/RF adapters since the EOS-R and this is the first time they have decided to go after anyone for them.
@@RexxReviews it is really sad, could have been a great system for many.
Its not a adíale no more