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Canon G1 X Mark III vs R3

The Canon PowerShot G1 X Mark III and the Canon EOS R3 are two digital cameras that were announced, respectively, in October 2017 and September 2021. The G1X Mark III is a fixed lens compact, while the R3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (G1X Mark III) and a full frame (R3) sensor. Both cameras offer a resolution of 24 megapixels.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon G1 X Mark III
versus
Canon R3
Canon G1 X Mark III   Canon R3
Fixed lens compact camera Mirrorless system camera
24-72mm f/2.8-5.6 Canon RF mount lenses
24 MP – APS-C sensor 24 MP – Full Frame sensor
1080/60p Video 6K/60p Video
ISO 100-25,600 ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (2360k dots) Electronic viewfinder (5760k dots)
3.0" LCD – 1040k dots 3.2" LCD – 4150k dots
Swivel touchscreen Swivel touchscreen
9 shutter flaps per second 12 shutter flaps per second
Lens-based stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
200 shots per battery charge760 shots per battery charge
115 x 78 x 51 mm, 399 g 150 x 143 x 87 mm, 1015 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot G1 X Mark III and the Canon EOS R3? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G1 X Mark III and the Canon R3. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

Size Canon G1 X Mark III vs Canon R3
Compare G1X Mark III versus R3 top
Comparison G1X Mark III or R3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon R3 is considerably larger (139 percent) than the Canon G1 X Mark III. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G1X Mark III has a lens built in, whereas the R3 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the G1X Mark III gets 200 shots out of its Canon NB-13L battery, while the R3 can take 760 images on a single charge of its Canon LP-E19 power pack. As can be seen in the images above, the R3 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. The power pack in the R3 can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon G1 X Mark III 115 mm 78 mm 51 mm 399 g 200 Y Oct 2017 US$ 1 299ebay.com
2.
 
Canon R3 150 mm 143 mm 87 mm 1015 g 760 Y Sep 2021 US$ 5 999 amazon.com
3.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 US$ 6 499 amazon.com
4.
 
Canon 6D Mark II 144 mm 111 mm 75 mm 765 g 1200 Y Jun 2017 US$ 1 999 amazon.com
5.
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 US$ 1 199ebay.com
6.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 US$ 3 899 amazon.com
7.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 US$ 2 499 amazon.com
8.
 
Canon R6 Mark II 138 mm 98 mm 88 mm 670 g 450 Y Nov 2022 US$ 2 499 amazon.com
9.
 
Canon SX540 120 mm 82 mm 92 mm 442 g 205 n Jan 2016 US$ 399ebay.com
10.
 
Fujifilm X-T3 133 mm 93 mm 59 mm 539 g 390 Y Sep 2018 US$ 1 499ebay.com
11.
 
Fujifilm X100F 127 mm 75 mm 52 mm 469 g 390 n Jan 2017 US$ 1 299ebay.com
12.
 
Fujifilm X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 US$ 1 399ebay.com
13.
 
Leica SL2-S 146 mm 107 mm 83 mm 931 g 510 Y Dec 2020 US$ 4 899 amazon.com
14.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 US$ 1 299 amazon.com
15.
 
Sony A6300 120 mm 67 mm 49 mm 404 g 400 Y Feb 2016 US$ 999ebay.com
16.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 US$ 1 399ebay.com
17.
 
Sony RX10 III 133 mm 94 mm 127 mm 1051 g 420 Y Mar 2016 US$ 1 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G1X Mark III was launched at a lower price than the R3, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon G1 X Mark III features an APS-C sensor and the Canon R3 a full frame sensor. The sensor area in the R3 is 160 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the R3 uses a more advanced image processing engine (DIGIC X) than the G1X Mark III (DIGIC 7), with benefits for noise reduction, color accuracy, and processing speed.

Canon G1 X Mark III and Canon R3 sensor measures

Even though the R3 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the R3 has a lower pixel density and larger individual pixels (with a pixel pitch of 6.00μm versus 3.72μm for the G1X Mark III), which gives it a potential advantage in terms of light gathering capacity. In addition, the R3 is much more recent (by 3 years and 10 months) than the G1X Mark III, and its sensor will have benefitted from technological advances during this time.

The Canon PowerShot G1 X Mark III has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Canon EOS R3 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the G1X Mark III is build around a CMOS sensor, while the R3 uses a Stacked BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G1X Mark III versus R3 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon G1 X Mark III APS-C 24.0 6000 40001080/60p23.813.2164981
2.
 
Canon R3 Full Frame 24.0 6000 40006K/60p25.014.7408696
3.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
4.
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285
5.
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
6.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
7.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
8.
 
Canon R6 Mark II Full Frame 24.0 6000 40004k/60p25.414.6315496
9.
 
Canon SX540 1/2.3 20.2 5184 38881080/60p20.311.780648
10.
 
Fujifilm X-T3 APS-C 26.0 6240 41604K/60p24.013.4185383
11.
 
Fujifilm X100F APS-C 24.0 6000 40001080/60p23.913.2170481
12.
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p24.213.6199684
13.
 
Leica SL2-S Full Frame 24.0 6000 40004K/60p25.214.1350495
14.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
15.
 
Sony A6300 APS-C 24.0 6000 40004K/30p24.413.7143785
16.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
17.
 
Sony RX10 III 1-inch 20.0 5472 36484K/30p23.112.647270
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the R3 provides a better video resolution than the G1X Mark III. It can shoot movie footage at 6K/60p, while the G1X Mark III is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the R3 offers a substantially higher resolution than the one in the G1X Mark III (5760k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Canon G1 X Mark III, the Canon R3, and comparable cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon G1 X Mark III2360 n3.0 / 1040 swivel Y 1/2000s 9.0/s Y Y
2.
 
Canon R35760 Y3.2 / 4150 swivel Y 1/8000s 12.0/s n Y
3.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
4.
 
Canon 6D Mark IIoptical Y3.0 / 1040 swivel Y 1/4000s 6.5/s n n
5.
 
Canon 80Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
6.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
7.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
8.
 
Canon R6 Mark II3690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
9.
 
Canon SX540none n3.0 / 461 fixed n 1/2000s 5.9/s Y Y
10.
 
Fujifilm X-T33690 n3.0 / 1040 full-flex Y 1/8000s 11.0/s n n
11.
 
Fujifilm X100F2360 n3.0 / 1040 fixed n 1/4000s 8.0/s Y n
12.
 
Fujifilm X100V3690 n3.0 / 1620 tilting Y 1/4000s 11.0/s n n
13.
 
Leica SL2-S5760 Y3.2 / 2100 fixed Y 1/8000s 20.0/s n Y
14.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
15.
 
Sony A63002359 n3.0 / 922 tilting n 1/4000s 11.0/s Y n
16.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y Y
17.
 
Sony RX10 III2359 Y3.0 / 1229 tilting n 1/2000s 14.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The G1X Mark III has one, while the R3 does not. While the built-in flash of the G1X Mark III is not very powerful, it can at times be useful as a fill-in light.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the R3 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon G1 X Mark III and the Canon R3 both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The G1X Mark III writes its imaging data to SDXC cards, while the R3 uses CFexpress (type B) or SDXC cards. The R3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G1X Mark III only has one slot. The R3 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the G1X Mark III can use UHS-I cards (up to 104 MB/s).

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon PowerShot G1 X Mark III and Canon EOS R3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon G1 X Mark IIIYstereo / mono--micro2.0YYY
2.
 
Canon R3Ystereo / monoYYmicro3.2Y-Y
3.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
4.
 
Canon 6D Mark IIYstereo / monoY-mini2.0YYY
5.
 
Canon 80DYstereo / monoYYmini2.0YY-
6.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
7.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
8.
 
Canon R6 Mark IIYstereo / monoYYmicro3.2Y-Y
9.
 
Canon SX540-stereo / mono--mini2.0YY-
10.
 
Fujifilm X-T3Ystereo / monoYYmicro3.1Y-Y
11.
 
Fujifilm X100FYstereo / monoY-micro2.0Y--
12.
 
Fujifilm X100VYstereo / monoY-micro3.1Y-Y
13.
 
Leica SL2-SYstereo / monoYYfull3.2Y-Y
14.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
15.
 
Sony A6300Ystereo / monoY-micro2.0YY-
16.
 
Sony A6500Ystereo / monoY-micro2.0YY-
17.
 
Sony RX10 IIIYstereo / monoYYmicro2.0YY-

It is notable that the R3 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G1X Mark III does not feature such a mic input.

Studio photographers will appreciate that the Canon R3 (unlike the G1X Mark III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The R3 is a recent model that features in the current product line-up of Canon. In contrast, the G1X Mark III has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the G1X Mark III from Canon. Further information on the features and operation of the G1X Mark III and R3 can be found, respectively, in the Canon G1 X Mark III Manual (free pdf) or the online Canon R3 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Canon G1 X Mark III or the Canon R3 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Canon PowerShot G1 X Mark III:

  • Ready to shoot: Has a lens built-in, whereas the R3 requires a separate lens.
  • More compact: Is smaller (115x78mm vs 150x143mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the R3).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in October 2017).


Reasons to prefer the Canon EOS R3:

  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC 7).
  • Better video: Provides higher definition movie capture (6K/60p vs 1080/60p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 2360k dots).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (4150k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 9 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Gets more shots (760 versus 200) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 3 years and 10 months of technical progress since the G1X Mark III launch.

If the count of relative strengths (bullet points above) is taken as a measure, the R3 is the clear winner of the contest (24 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G1X Mark III 07:24 R3

How about other alternatives? Do the specifications of the Canon G1 X Mark III and the Canon R3 place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the G1X Mark III or the R3 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon G1 X Mark III5/5+4/579/1004.5/54.5/5 Oct 2017 US$ 1 299ebay.com
2.
 
Canon R35/5o4.5/5..5/54.5/5 Sep 2021 US$ 5 999 amazon.com
3.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 US$ 6 499 amazon.com
4.
 
Canon 6D Mark II4/5+4/580/1004.5/54/5 Jun 2017 US$ 1 999 amazon.com
5.
 
Canon 80D4/5+ +4.5/584/1004.5/54.5/5 Feb 2016 US$ 1 199ebay.com
6.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 US$ 3 899 amazon.com
7.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 US$ 2 499 amazon.com
8.
 
Canon R6 Mark II5/5+ +4.5/591/1004.5/55/5 Nov 2022 US$ 2 499 amazon.com
9.
 
Canon SX540............ Jan 2016 US$ 399ebay.com
10.
 
Fujifilm X-T35/5+ +4.5/588/1005/55/5 Sep 2018 US$ 1 499ebay.com
11.
 
Fujifilm X100F5/5+3.9/583/1004.5/54.5/5 Jan 2017 US$ 1 299ebay.com
12.
 
Fujifilm X100V5/5+ +4.5/586/1005/54.5/5 Feb 2020 US$ 1 399ebay.com
13.
 
Leica SL2-S4/5..4/5..4.5/54.5/5 Dec 2020 US$ 4 899 amazon.com
14.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 US$ 1 299 amazon.com
15.
 
Sony A63004.5/5+..85/1005/55/5 Feb 2016 US$ 999ebay.com
16.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 US$ 1 399ebay.com
17.
 
Sony RX10 III5/5+..84/1004.5/54.5/5 Mar 2016 US$ 1 499ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon G1 X Mark III vs Canon R3

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon G1 X Mark III Canon R3
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 24-72mm f/2.8-5.6 Canon RF mount lenses
    Launch Date October 2017 September 2021
    Launch Price USD 1,299 USD 5,999
    Sensor Specs Canon G1 X Mark III Canon R3
    Sensor Technology CMOS Stacked BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 22.3 x 14.9 mm 36.0 x 24.0 mm
    Sensor Area 332.27 mm2 864 mm2
    Sensor Diagonal 26.8 mm 43.3 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 24 Megapixels
    Image Resolution 6000 x 4000 pixels 6000 x 4000 pixels
    Pixel Pitch 3.72 μm 6.00 μm
    Pixel Density 7.22 MP/cm2 2.78 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video 6K/60p Video
    ISO Setting 100 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    Image Processor DIGIC 7 DIGIC X
    DXO Sensor Quality (score) .. 96
    DXO Color Depth (bits) .. 25
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 4086
    Screen Specs Canon G1 X Mark III Canon R3
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.76x
    Viewfinder Resolution 2360k dots 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1040k dots 4150k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon G1 X Mark III Canon R3
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 9 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/64000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexB or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-II
    Connectivity Specs Canon G1 X Mark III Canon R3
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Canon G1 X Mark III Canon R3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Canon NB-13L Canon LP-E19
    Battery Life (CIPA)200 shots per charge760 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 115 x 78 x 51 mm
    (4.5 x 3.1 x 2.0 in)
    150 x 143 x 87 mm
    (5.9 x 5.6 x 3.4 in)
    Camera Weight 399 g (14.1 oz) 1015 g (35.8 oz)
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