Are you looking for the best camera to suit your needs? Due to a wide range of options, making a wise and weighted decision can be rather challenging. Which specs to keep in mind? What are the key pros and cons of each model? This comparison should give some helpful hints!
In this review, we are going to provide a detailed evaluation and comparison of two different camera models that fall into the same category - Pro Mirrorless. Although these cameras are from the same category, they were introduced by different brands - Canon and Sony. Models we are reviewing in this article have different types of sensors, Thus, Canon EOS R is equipped with a 30.0 MP CMOS sensor. Sony Alpha A7R III, on the contrary, features BSI-CMOS sensor with a resolution of 42.0 MP.
To get started, let’s take a look at some of the key features of Canon EOS R and Sony Alpha A7R III and, after this, we can go on to our detailed comparison of these models.
Canon EOS R Key Features:
Sony Alpha A7R III Key Features:
|Sensor Area||864 mm2 vs 861.6 mm2||0.3% larger pixel area|
|Number Of Focus Points||5655 vs 425||5230 more focus points|
|Screen Size||3.2″ vs 3″||0.2" larger screen|
|Screen Type||Fully Articulated vs Tilting||Flexible shooting positions|
|Screen Resolution||2,100k dots vs 1,440k dots||31.4% higher resolution screen|
|Viewfinder Resolution||3,690k dots vs 3,686k dots||0.1% higher resolution|
|NFC||Yes vs No||Easy wireless connectivity with compatible devices|
|Timelapse Recording||No vs No||Creative shooting|
|Storage Slots||2 vs 1||Extra storage slot|
|Sensor Resolution||42.0 MP vs 30.0 MP||28.6% more pixels|
|Image Stabilization||Yes vs No||All lenses are stabilized|
|Continuous Shooting||10 fps vs 8 fps||2 fps faster|
|Battery Life||650 shots vs 370 shots||280 more frames with a single charge|
|Weight||657 g vs 660 g||3 g lighter|
|Viewfinder Magnification||0.78 vs 0.76||0.02 better magnification|
|Touch Screen||Yes | Yes||Easy control of camera functions|
|Screen Size||3.2″ | 3″||Large display|
|Screen Resolution||2,100k dots | 1,440k dots||High resolution screen|
|Screen Type||Fully Articulated | Tilting||Help viewing and changing settings easily|
|Viewfinder||Electronic | Electronic||Better framing and control|
|Raw Support||Yes | Yes||Better image quality|
|Sensor Resolution||30.0 MP | 42.0 MP||Bigger prints and more details|
|AutoFocus Face Detection||Yes | Yes||Very handy for portraits|
|Microphone Port||Yes | Yes||High quality audio recording option|
|Headphone Port||Yes | Yes||Better video control|
|Bracketing||Yes | Yes||Useful for tough lighting conditions and HDR|
|Continuous Shooting||8.0 fps | 10.0 fps||Nice continuous shooting|
|Flash Sync Port||Yes | Yes||Port for Flash Sync|
|Environmental Sealing||Yes | Yes||Shoot at tough conditions|
|Timelapse Recording||No | Yes||No timelapse recording|
|Built-In Flash||No | No||No built-in flash|
Before heading straight to the technical characteristics of each model, let’s start with comparing their physical specs. Let’s start with looking at the physical difference of the two products. Below are images that clearly show the sizes of Canon EOS R and Sony Alpha A7R III from the front view.
Now, let’s go on and see how the reviewed models are different or similar by the top view.
After looking at these images, you should get a clear idea of each model’s dimensions and how they are different from each other. However, we are not going to stop there. The next characteristic worth looking at is the weight. Of course, not every photographer is concerned about the weight, for example, it wouldn't be a decisive point for those who shoot in a studio. However, it is still an important factor because if you happen to go on a long photo session or just love having the camera with you wherever you go, you want to be sure that the chosen model isn't too heavy.
Speaking of weight, Sony Alpha A7R III is a lighter option of these two, as it weights 3g less than the Canon EOS R. This difference, in fact, can become a significant disadvantage for the photographers, who prefer to have their cameras with them wherever they go.
Sensor is, without a doubt, the most significant element of every digital camera. Its type, size, and resolution are the factors that define the quality of future shots. Thus, it is barely possible to pick a suitable camera without looking at these specs.
Are Canon EOS R and Sony Alpha A7R III any different in terms of sensor type?
In fact, that's exactly what makes these two models really different. Thus, it is a good point to consider if your are choosing between these two cameras. Canon EOS R features a 30.0 MP Full frame sized CMOS sensor . Sony Alpha A7R III, in its turn, comes with a 42.0 MP Full frame sized BSI-CMOS sensor and Bionz X processor , which makes it significantly different from the first model.
Take a look below to find the comparison of Canon EOS R and Sony Alpha A7R III by the size of their sensors.
Canon EOS R and Sony Alpha A7R III are identical by this indicator, as each feature a sensor of the same size. Thus, both cameras will provide the same level of control in terms of the depth of field if you use them with the same focal length and aperture.
If you are interested in photography or has made a career in this field, you should know that different types of shooting actually require different camera characteristics. While one model can produce outstanding portraits, at the same time, it can be terrible for shooting landscapes, and so on. Thus, before you purchase a specific camera, it is vital to decide, which type of shooting you do most often and consider an option that suits it the most.
This section of our comparison is devoted to the performance of Canon EOS R and Sony Alpha A7R III in different fields of photography. Here we are going to look at the five main areas and evaluate how well each of the reviewed models performs in them. This will help you choose an option that suits your needs the most depending on your interest in one or several of these fields.
|Photography Type||Canon EOS R||Sony Alpha A7R III|
Disadvantages:No Significant Disadvantages
Disadvantages:No Significant Disadvantages
Disadvantages:No Significant Disadvantages
Hopefully, our detailed overview of these models has helped you consider all the main specs, pros and cons of each cameras. Maybe, after reading this comparison, some of you have already decided which option to opt for depending on your needs and preferences. However, if you are still wondering which option is a better choice, Canon EOS R or Sony Alpha A7R III, below you can see what scores each of them received in five different aspects. To wrap up, we have used our unique Decision Algorithm that assesses different camera models upon 63 different factors including their price, and, if possible, DxO Mark scores. This algorithm allows us to make our verdict more consistent and objective.
What is our final verdict? Based on our comparison and the final scores of Canon EOS R and Sony Alpha A7R III here is what we can say in conclusion:
According all the factors that we considered in the process of comparing these two cameras, Sony Alpha A7R III deserves a higher Total Score than the Canon EOS R. Thus, if you are choosing between these options, we would recommend you to choose the first model over the other one.
For better understanding of each model’s technical characteristics, find the detailed comparison below:
|Canon EOS R||Sony Alpha A7R III|
|Model||EOS R||Alpha A7R III|
|Announced||Sep 05, 2018||Oct 25, 2017|
|Body Type||SLR-style mirrorless||SLR-style mirrorless|
|Sensor Size||Full frame||Full frame|
|Sensor Dimensions||36 x 24 mm||35.9 x 24 mm|
|Sensor Area||864.00 mm2||861.60 mm2|
|Sensor Resolution||30.0 MP||42.0 MP|
|Max Image Resolution||6720 x 4480||7952 x 5304|
|Max Native ISO||40,000||32,000|
|Max Boosted ISO||102,400||102,400|
|Min Native ISO||100||100|
|Lens Mount||Canon RF||Sony E|
|Number of Lenses||4||83|
|Focal Length Multiplier||1x||1x|
|Macro Focus Range|
|AF Multi Area|
|AF Live View|
|AF Face Detection|
|AF Contrast Detection|
|AF Phase Detection|
|Number of Focus Points||5655||425|
|Number of Cross Focus Points||n/a||n/a|
|Screen Type||Fully Articulated||Tilting|
|Screen Resolution||2,100k dots||1,440k dots|
|ViewFinder Resolution||3,690k dots||3,686k dots|
|Min Shutter Speed||30 s||30 s|
|Max Shutter Speed||1/8000 s||1/8000 s|
|Continuous Shooting||8.0 fps||10.0 fps|
|Manual Exposure Mode|
|Custom White Balance|
|Flash Modes||no built-in flash||Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync|
|Video Resolutions||3840 x 2160 @ 30p / 480 Mbps, MOV, H.264, Linear PCM||3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)|
|Max Video Resolution||3840 x 2160||3840 x 2160|
|Video Formats||MPEG-4, H.264||MPEG-4, AVCHD, XAVC S|
|USB||USB Yes (with LP-E6N only)||USB USB 3.1 Gen 1(5 GBit/sec)|
|Weight||660 g||657 g|
|Physical Dimensions||136 x 98 x 84 mm||127 x 96 x 74 mm|
|Battery Life||370 shots||650 shots|
|Battery Type||Battery Pack||Battery Pack|
|Storage Type||SD card (UHS-II supported)||Two SD/SDHC/SDXC slots (UHS-II support on one)|