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Canon EOS R vs Sony a7 III: Which One You Should Choose?

This is the comparison review of Canon EOS R and Sony a7 III mirrerless cameras. Both the cameras costs almost the same price.  Both the camera has 4k video and a lot more features. Check out which one is better option for you.

Canon EOS R Sony A7 III
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ProsPros
Proven 30MP full-frame sensor. Vari-angle touch LCD. Big, sharp EVF. 8fps continuous capture. Big shooting buffer. Broad lens compatibility via adapter. Unique native lenses.Stellar low-light/high ISO capability. Much-improved handling. Fast 10 fps shooting. Excellent autofocus. Sharpest 4K video of any Sony full-frame camera. Double the battery life of the last model.
ConsCons
M-Fn bar tricky to use effectively. Uncomfortable rear dial. Omits focus joystick. No in-body stabilization system. Inconsistent metering. Single memory card slot. No PC sync socket. 4K video is heavily cropped.EVF and viewfinder not quite as good as rivals. Two SD card slots but only one is high-speed. UHS-II Not as weather-resistant as the Fujifilm’s X-H1. No 10-bit video output like Panasonic’s GH5s
ModelCanon EOS RSony a7 III
BrandCanonSONY
Model
3075C002
Part3075C002
DetailsCanon EOS RSony a7 III
ColorBlack
Image SensorCanon EOS RSony a7 III
Image Sensor
CMOSExmor R BSI CMOS Sensor
Gross Pixels
Effective Pixels
> 26.0 MP24MP
Image Processor
LCD MonitorCanon EOS RSony a7 III
LCD
3.2"3.0"
FocusCanon EOS RSony a7 III
Focus Type
Auto/Manual
Shutter
Canon EOS RSony a7 III
Shutter Type
Shutter Speed
Self-timer
FlashCanon EOS RSony a7 III
Flash Mode
Built-in Flash
Recording System
Canon EOS RSony a7 III
Recording Media
SD / SDHC /SDXC CardSD, SDHC, SDXC, Memory Stick Pro Duo, Memory Stick PRO HG-Duo
MovieCanon EOS RSony a7 III
Movie Recording
Movie RecordingMovie Recording
LensCanon EOS RSony a7 III
Compatible Lenses
Canon Lenses
Lens Mount

Canon EF Mount
InterfaceCanon EOS RSony a7 III
HDMI
Yes
Built in Wifi
Power SourceCanon EOS RSony a7 III
Battery
Rechargeable Ni-MH Battery PackLithium ION Battery
FeatureCanon EOS RSony a7 III
Features
30.3 Megapixel full-frame CMOS sensor and DIGIC 8 image processor ^^ Dual pixel CMOS AF with 5, 655 manually selectable AF points
Dimensions & Weight
Canon EOS RSony a7 III
Weight
3.36
GroupCanon EOS RSony a7 III
Body Color
Black
Additional Information
Canon EOS RSony a7 III
Date First Available
October 29, 2018October 29, 2018

Expert Reviews For Canon EOS R:

By 91mobiles.com
It’s worth noting that the Canon EOS R is a first-gen offering considering it’s the Japanese brand’s very first mirrorless camera. Yet, the company has ensured that the shooter ticks the most right boxes, be it a good sensor, robust design with…

By Expert Reviews
This is a cracking debut to the mirrorless camera market for Canon. It won’t be a camera for every professional out there – not enough body controls, not enough frames per second and not enough battery life – but for enthusiasts who simply want the very…

By dxomark.com
Although we’ve not directly compared the two Canon 30MP full-frame CMOS sensors side-by-side in this review, it’s not surprising that the results for the EOS R are very close to that of the Canon EOS 5D Mark IV. Both appear to use a similar sensor, with…

By AppleInsider
AppleInsider has spent the last month testing out Canon’s first full-frame mirrorless EOS R shooter to see how it stacks up in an ever-growing mirrorless market.Canon EOS RCanon EOS R displayCanon EOS R top controlsCanon EOS R media slotCanon EOS R iOS…

By thetechy.com
The EOS R launched with four RF lenses, but that doesn’t mean you’re stuck with just those lens. You can attach Canon EF full-frame or APS-C EF-S lenses on the EOS with three new adapters with no loss in quality.The Canon EOS R has a 30-megapixel…

Expert Reviews For Sony A7 III:

By Expert Reviews
Regardless of whether you shoot landscapes, wildlift, travel, sports or portraits, the Sony Alpha 7 III has plenty to…

By Photo Review 
Until now, Sony has been the only mirrorless camera manufacturer to offer cameras with ‘full-frame’ sensors; but that’s about to change. On 23 August Nikon will unveil its first mirrorless camera, which will have a full-frame sensor and a new lens…

By IndianExpress
I was at wedding recently with the usual bunch of photographers trying their best to take away the view for the rest of the guests. However, what struck me more was how many of them were using Sony Alpha cameras this time. A few years back there would…

By Gadgets360
The Sony A7 III is a great entry point into the company’s full-frame range of cameras. If you’re an enthusiast or even a professional looking for a full-frame camera and want something portable, then mirrorless is the way to go. The A7 III is a huge…

By Gadgetsguy
The Sony Alpha7 III is for the discerning still photographer who wants the quality of a full frame digital camera, without the price tag of the 40MP models.Sony’s website for this camera is…

Detail Review

INTRODUCTION:

Canon EOS R

This is the full frame mirrorless camera of canon. It has 4k video and many useful modes and also full frame covered auto focusing points and system. Canon also released some better lenses with this camera.

Sony a7III

This is the mirrorless camera of a series of Sony. Both the image and video quality of this camera is pretty good. There’s also the 4k video and useful features which make this camera a little bit different. 

canon eos r 2

DESIGN & HANDLING:

Canon EOS R

I like the handling of the camera. I like the menu system and everything it’s highly customizable. The build quality seems great. It doesn’t means like it’s like a high-end pro body auto-focusing but I think that’s an area that’s a big weakness for me. But, the overall user experience of the camera feels Pleasant.

Sony a7III

When it comes to the size and ergonomics and weight of this thing, I actually do have quite big hands but I don’t find any big issues with the camera. The only thing that I don’t like is that my finger is hitting the lens in every single time that I’m having a lens on the camera. I have tried the Canon EOS R and the Sony a7r 4, the ergonomics and the grip is way more improved on the Sony a7r Mark 4, so I really do hope that that kind of body is what Sony will make for this on a 7 mark 4 as well.

One thing that I really wish that this camera would have is a flip out screen. This screen has a limited flipping to just 45 degree instead the fully flip screen. This screen is does a good job of like when you take low photos or when you want to use it as a display and shoot those low camera angles but having the option to actually flip out your screen is like it’s so good. I really don’t like the contraption that they did on the Sony a6400. It would be so much better to have like one of those flipping out screens that you can let you rotate and twist and turn the way you want it. In that, when you’re recording a blog and you can see yourself which is good in a way because then you learn to actually look into the camera.

FEATURES:

Canon EOS R

I like the FV mode which is a mode where you can choose what you want to prioritize, if you change your aperture it becomes aperture priority, if you change your shutter speed that basically becomes shutter priority which means if someone’s a beginner or doesn’t like shooting in manual, they can change what they need to change and then the camera automatically adjusts everything for them. I think that’s a great feature especially for beginners. It’s like the one mode you need beginner all the way to pro.

Now, it’s have a control ring on the front which you can customize to anything that you want and then it’s actually on the front of a lens and that’s really nice to be able to have you can program all kinds of stuff.

You do have USB charging on this but you have to get a 200-dollar proprietary charger in order to do that, so it’s probably not something you’re going to get benefit. With a multifunction bar, Canon put a lot of thought into this and it was a great little thing to add to this camera which is something different but it was quite laggy for me as well as I just kept hitting it at the wrong time. It just did not work out for me.

I like Joystick for moving the focus points but I do like that they added in the menu system that you can either switch for left or right hands, so as I’am looking through the viewfinder I can move my finger across my screen which has no lag at all which is awesome and change focus point. If you get used to that over time, it could be a lot faster than using your joystick for moving your focus points.

The battery life was actually great, I found it to be much better than I expected. There’s not quite what we’re getting on some of the best mirrorless cameras out there but even though it’s the same battery as a 5D 4. I was actually very impressed with how it held up for mirrorless use and then also the buffer on this it cleared fast enough, we do have UHS 2 cards, so that is helping. It’s not shooting at anything more than 5 frames per second, so it’s not that difficult for it but it was able to keep up just fine with it. There is little things that just matter. For example, when you take your lens off and you have a shutter that comes down over the sensor to keep it clean as amazing to have is one of the greatest features.

The negative points of this camera is limited native lenses, a single card slot, the almost unusable multi-function bar and poor quality 4k and slow-motion video but the Canon EOS R isn’t a camera designed for camera nerds like us, it’s an all-purpose family camera. The Sony a7 III, the Sony a7r III, the Fuji X-T3, they all beat it for specs.

Sony a7III

This is full frame camera and the reason that I like full frame camera is more than aps-c or micro four-thirds is mainly because you get the best of two worlds. For example, if I’m shooting a video on this camera like a shoot in full frame mode or I can jump up to 35 mode which gives me a like aps-c crop without having to have an aps-c camera. In my opinion, I do think that full-frame does give your videos and photos a better look than aps-c cameras or micro four-thirds but that’s a matter of taste.

When it comes the versatility of the camera that is where I think that this camera is really shining through, especially when you consider that it is a full-frame camera with 4k recording. It has 120 frames per second 1080 recording, it has super 35 mode, it has great low-light performance. I’m using ISO 6400 or even 12,800 times and it still looks good.

The negative features of this camera which is doesn’t have is an unlimited recording time and that is something that I didn’t think was going to be an issue at first but when you will start to do more videos then you will realize that it’s a big problem. Every single time you have to put a timer on 30 minutes because you can’t just let it roll because the camera doesn’t make a sound when it’s turning off and you can’t record more than 30 minutes. So, this is a big downside of this camera.

Another downside of this camera is definitely gonna be the weather sealing. You don’t have any kind of like rubber gaskets, there’s just a flat lids. Even though I am using this in slight bristle, I wouldn’t use it in anything more than that especially when it comes to like moisture and heavy rain.

While the Sony a7III is actually Sony’s entry model into the a7 line, there’s still a lot of great Pro features on this camera if you’re a video shooter. We’ve got dual card slots that both can record high quality videos.

The battery time though is way better than Sony a6000 or a6400 because it has the zette battery but thing is with these batteries is that they packed a lot of power into these batteries. I can actually use one single battery for an entire client shoot in one day, it’s kind of insane when I think about it because like it shoots 4k or you’re shooting 120 frames per second Full HD and it still does manage to stay awake maybe like five or six hours constantly working. So, that’s pretty good.

sony a7 iii

IMAGE QUALITY: 

Canon EOS R

The image quality soundly beats the popular Fuji XT 3 and it looks and feels better than the Sony a7 III. The flip screen produces much better selfies than your smartphone ever could. For grabbing quick HD clips handheld or on a tripod nothing focuses as easily as the EOS R.

The EOS R image quality is great. The Canon is actually better than the Sony Nikon and Fuji alternatives at this price point. However, if you were to jump up to a Sony a7 III or a Nikon D850, the image quality of those cameras would be better but they also cost a lot more.

Sony a7III

For color science, the color in this camera is pretty decent. Sony has made a couple tweaks compared to older models from the a7 series and there are other cameras but the color-science is actually not bad if you use the correct settings. I found you can get pretty great skintone results with this camera, so it’s not the worst camera available today.

The sensor is actually a 6k sensor taking that 6k resolution and squeezing it and putting it into a 4k file. So, you’re getting lots of detail with this camera, it’s actually one of the most detailed sensor combinations out there. It doesn’t mean that in the overall image quality but when it comes to sharpness and detail, this camera is one of the best.

VIDEO QUALITY:

Canon EOS R

As a video camera, the EOS R is my favorite to use, it will find a face in a scene and just lock into it even if you move around. It is perfect for vloggers but it has some serious drawbacks while it supports 4k, it’s heavily cropped which means you need to change lenses and then the quality is pretty bad for it too. So, it’s basically an HD video camera.

Technically, it can do slow-motion but the slow motion looks bad and doesn’t have any sound. So technically, it’s a terrible video camera but functionally it’s the best I ever used.

For video, the Canon EOS R might be the best wildlife camera ever made. The viewfinder means you can hold the camera up to your eye which makes it much easier to find the subjects then it is using the rear screen on a DSLR. In 4k, it has that 1.8 times crop which is usually a negative one but when you want to get closer ,it’s spectacular which means I’m getting at like 2,000 millimeters with the setup and that’s incredibly close. It’s snapping into focus much better without the teleconverter. I still think of a better options but this is much easier to use for without telecoventor.

Sony a7III

This camera is wild and it’s one of the few cameras these days that does full-frame 4k video and not only 4k. You need to pay attention to what the sensor does when you’re using various modes on this camera. When you’re shooting 4k at 24 frames per second, you’re getting the highest video quality possible out of this camera. If you shoot at 30 frames per second, you will have a small crop and it will no longer be the full sensor.

When you shooting at 1080p, you’re gonna get fairly soft footage although that is the only way to do 120 frames per second or 60 frames per second. On this camera, both are okay but not the best high-speed camera available. You can use a super 35 crop in mode and it works pretty well although you’ll notice it’s a little softer compared to full-frame. So, if you want the best video quality possible, shoot at 4k at 24 frames per second.

The low-light on this camera is pretty impressive especially considering it’s not the a7 S which is really set up for that low-light action. So, you’re gonna be able to get pretty high on this camera. I would recommend going over around 10,000 or 12,800 at that point, you’ll start to see color go to poop and you’ll have some issues but again a great camera for low-light filming.

For audio, you don’t really need a lot of accessories to get the most out of this camera. You don’t really need a rig because we have in body stabilization.

canon eos r

AUTO FOCUS:

Canon EOS R

The focusing system is that of previous generation mirrorless camera like the Sony a7r II or Sony a7 II or maybe the Fuji XT one. I discovered that the IAF only works at headshot range if you shoot any wider, the best you can do is face detect. If you zoom in and out, I auto focus will work and then stop working. Face detect alone isn’t accurate enough when you’re using portrait lenses, you do have to use a single auto-focus point and then the lack of a thumb stick means it all moves pretty slowly. The Sony a7 III and Fuji XT III have much more usable in detect focusing systems.

The EOS R might be the worst camera I ever used for shooting sports. The continuous focusing system is so slow that it dropped to only about one point five frames per second when shooting action.

Sony a7III

Auto-focus is amazing on this camera. It might not be Canon dual pixel level but personally, I’ve really not had any issues with video auto-focus on this camera even using a third-party lenses.

LENS:

Canon EOS R

If you’re planning to use your Canon EF DSLR lenses, they work as average but I can’t recommend it. For the same price the 5D Mark 4 is a much better overall camera including the focusing. For casual family shooters who don’t mind dropping 3400 bucks on a camera the EOS R with a 24 to 105 might be the best setup you can get.

Canon has some of the best wildlife lenses and the canon EOS R with the EF adapter is workable for a wildlife stills but I’d rather use the much less expensive Canon 7d mark II or Nikon D500.

Sony a7III

The lens options are getting pretty great for the Sony e-mount system. So, you have a lot of options from Sony themselves from Zeiss. Now, we’re getting more and more from Tamron, Sigma. It’s a great time to be a Sony shooter if you’re looking for lots of lens options.

sony-a7-iii (1)

WHICH TO BUY?

If you’re a new casual shooter without any particular camera, I would recommend the Canon EOS R. The selfie screen is going to be important to a lot of modern shooters, it generally feels better, I think it’s more fun to use. The menu systems are a lot easier to learn. The viewfinder a little bit crisper and a little bit nicer than the sony. However, if you’re shooting involves any kind of sports or other types of action then you should switch to the Sony because the Canon simply cannot keep up with high speed but for travel and landscapes that kind of thing, I would pick the Canon.

If you’re a Canon lens owner and you want to continue to use your Canon EF lenses, I would recommend the canon EOS R. They simply adapt much better than they do with third-party adapters. If you are a wedding photographer, I would recommend the sony. The sony has a great selection of native sony g master lenses, it has two card slots and it has proven to be very reliable among the professionals that have been using it on a regular basis. If you’re a vlogger and you’re going to be on camera, I would recommend the canon EOS R because it has that flip forward screen and the focusing system will automatically put your face in focus and that is incredibly useful. However, if your videographer and you are behind the camera and you don’t need to show the on-camera talent to screen then I would definitely pick the Sony. It is overall a superior video camera.

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