Canon 70D vs G1X Mark III
The Canon EOS 70D and the Canon PowerShot G1 X Mark III are two enthusiast cameras that were revealed to the public, respectively, in July 2013 and October 2017. The 70D is a DSLR, while the G1X Mark III is a fixed lens compact. Both cameras are equipped with an APS-C sensor. The 70D has a resolution of 20 megapixels, whereas the G1X Mark III provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 70D and the Canon PowerShot G1 X Mark III? 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.
The side-by-side display below illustrates the physical size and weight of the Canon 70D and the Canon G1 X Mark III. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon G1 X Mark III is considerably smaller (38 percent) than the Canon 70D. 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 70D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 70D and their specifications in the Canon EF Lens Catalog.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199||ebay.com|
|2.||Canon G1 X Mark III||115 mm||78 mm||51 mm||399 g||200||Y||Oct 2017||1,299||amazon.com|
|3.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199||ebay.com|
|4.||Canon G3 X||123 mm||77 mm||105 mm||733 g||300||Y||Jun 2015||999||ebay.com|
|5.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799||ebay.com|
|6.||Canon T5||130 mm||100 mm||78 mm||480 g||500||n||Feb 2014||449||ebay.com|
|7.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099||ebay.com|
|8.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399||ebay.com|
|9.||Canon 7D||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699||ebay.com|
|10.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299||ebay.com|
|11.||Fujifilm X100V||128 mm||75 mm||53 mm||478 g||420||Y||Feb 2020||1,399||amazon.com|
|12.||Fujifilm X100F||127 mm||75 mm||52 mm||469 g||390||n||Jan 2017||1,299||ebay.com|
|13.||Nikon D7100||136 mm||107 mm||76 mm||765 g||950||Y||Feb 2013||1,199||ebay.com|
|14.||Sony A6300||120 mm||67 mm||49 mm||404 g||400||Y||Feb 2016||999||ebay.com|
|15.||Sony A6500||120 mm||67 mm||53 mm||453 g||350||Y||Oct 2016||1,399||ebay.com|
|16.||Sony RX10||129 mm||88 mm||102 mm||813 g||420||Y||Oct 2013||1,299||ebay.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. 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.
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the G1X Mark III is 2 percent smaller. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (70D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the G1X Mark III uses a more advanced image processing engine (DIGIC 7) than the 70D (DIGIC 5+), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a slightly smaller sensor, the G1X Mark III offers a higher resolution of 24 megapixels, compared with 20 MP of the 70D. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 4.11μm for the 70D). However, it should be noted that the G1X Mark III is much more recent (by 4 years and 3 months) than the 70D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon G1 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X Mark III for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon 70D are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.
The Canon EOS 70D has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Canon PowerShot G1 X Mark III are ISO 100 to ISO 25600 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|2.||Canon G1 X Mark III||APS-C||24.0||6000||4000||1080/60p||23.8||13.2||1649||81|
|4.||Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|5.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|7.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|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 G1X Mark III provides a faster frame rate than the 70D. It can shoot movie footage at 1080/60p, while the 70D is limited to 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the G1X Mark III has an electronic viewfinder (2360k dots), while the 70D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The adjacent table lists some of the other core features of the Canon 70D and Canon G1 X Mark III along with similar information for a selection of comparators.
|1.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|2.||Canon G1 X Mark III||2360||n||3.0 / 1040||swivel||Y||1/2000s||9.0/s||Y||Y|
|3.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0/s||Y||n|
|4.||Canon G3 X||optional||n||3.2 / 1620||tilting||Y||1/2000s||5.9/s||Y||Y|
|5.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0/s||Y||n|
|6.||Canon T5||optical||n||3.0 / 460||fixed||n||1/4000s||3.0/s||Y||n|
|7.||Canon 6D||optical||Y||3.0 / 1040||fixed||n||1/4000s||4.5/s||n||n|
|8.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3/s||Y||n|
|9.||Canon 7D||optical||Y||3.0 / 920||fixed||n||1/8000s||8.0/s||Y||n|
|10.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3/s||Y||n|
|11.||Fujifilm X100V||3690||n||3.0 / 1620||tilting||Y||1/4000s||11.0/s||Y||n|
|12.||Fujifilm X100F||2360||n||3.0 / 1040||fixed||n||1/4000s||8.0/s||Y||n|
|13.||Nikon D7100||optical||Y||3.2 / 1229||fixed||n||1/8000s||6.0/s||Y||n|
|14.||Sony A6300||2359||n||3.0 / 922||tilting||n||1/4000s||11.0/s||Y||n|
|15.||Sony A6500||2359||n||3.0 / 922||tilting||Y||1/4000s||11.0/s||Y||Y|
|16.||Sony RX10||1440||Y||3.0 / 1229||tilting||n||1/3200s||10.0/s||Y||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the 70D, but is missing on the G1X Mark III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.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 Canon G1 X Mark III has 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.
Concerning the storage of imaging data, both the 70D and the G1X Mark III write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 EOS 70D and Canon PowerShot G1 X Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|2.||Canon G1 X Mark III||Y||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|3.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|4.||Canon G3 X||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|5.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|6.||Canon T5||Y||mono / mono||-||-||mini||2.0||-||-||-|
|7.||Canon 6D||Y||mono / mono||Y||-||mini||2.0||Y||-||-|
|8.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|9.||Canon 7D||Y||mono / -||Y||-||mini||2.0||-||-||-|
|10.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|11.||Fujifilm X100V||Y||stereo / mono||Y||-||micro||3.1||Y||-||Y|
|12.||Fujifilm X100F||Y||stereo / mono||Y||-||micro||2.0||Y||-||-|
|13.||Nikon D7100||Y||stereo / mono||Y||Y||mini||2.0||-||-||-|
|14.||Sony A6300||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|15.||Sony A6500||Y||stereo / mono||Y||-||micro||2.0||Y||Y||-|
|16.||Sony RX10||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the 70D has a microphone port, which is missing on the G1X Mark III. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
The G1X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the 70D has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the 70D was succeeded by the Canon 80D. Further information on the features and operation of the 70D and G1X Mark III can be found, respectively, in the Canon 70D Manual (free pdf) or the online Canon G1 X Mark III Manual.
So what conclusions can be drawn? Is the Canon 70D better than the Canon G1 X Mark III or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS 70D:
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (920 versus 200) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in July 2013).
Arguments in favor of the Canon PowerShot G1 X Mark III:
- More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
- Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 5+).
- Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- Faster burst: Shoots at higher frequency (9 vs 7 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the 70D requires a separate lens.
- More compact: Is smaller (115x78mm vs 139x104mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 70D).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 4 years and 3 months of technical progress since the 70D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the G1X Mark III is the clear winner of the contest (13 : 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.
How about other alternatives? Do the specifications of the Canon 70D and the Canon G1 X Mark III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 70D or the G1X Mark III 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.
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.
|1.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199||ebay.com|
|2.||Canon G1 X Mark III||5/5||+||4/5||79/100||4.5/5||4.5/5||Oct 2017||1,299||amazon.com|
|3.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199||ebay.com|
|4.||Canon G3 X||3.5/5||+||..||..||4.5/5||4/5||Jun 2015||999||ebay.com|
|5.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799||ebay.com|
|6.||Canon T5||3/5||+||..||..||4/5||4.5/5||Feb 2014||449||ebay.com|
|7.||Canon 6D||5/5||+ +||..||83/100||4.5/5||4.5/5||Sep 2012||2,099||ebay.com|
|8.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399||ebay.com|
|9.||Canon 7D||5/5||+ +||..||84/100||4.5/5||4.5/5||Sep 2009||1,699||ebay.com|
|10.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299||ebay.com|
|11.||Fujifilm X100V||5/5||+ +||4.5/5||86/100||5/5||4.5/5||Feb 2020||1,399||amazon.com|
|12.||Fujifilm X100F||5/5||+||3.9/5||83/100||4.5/5||4.5/5||Jan 2017||1,299||ebay.com|
|13.||Nikon D7100||5/5||+ +||..||85/100||4.5/5||4.5/5||Feb 2013||1,199||ebay.com|
|14.||Sony A6300||4.5/5||+||..||85/100||5/5||5/5||Feb 2016||999||ebay.com|
|15.||Sony A6500||5/5||+ +||3.5/5||85/100||4.5/5||4.5/5||Oct 2016||1,399||ebay.com|
|16.||Sony RX10||5/5||+||..||80/100||4.5/5||4.5/5||Oct 2013||1,299||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 100D vs Canon 70D
- Canon 1Ds vs Canon G1 X Mark III
- Canon 70D vs Canon T5i
- Canon 70D vs Panasonic FZ2000
- Canon 70D vs Panasonic GF2
- Canon 70D vs Panasonic GH4
- Canon 70D vs Sony ZV-1F
- Canon G1 X Mark III vs Canon M200
- Canon G1 X Mark III vs Fujifilm X100
- Canon G1 X Mark III vs Panasonic FZ2500
- Canon G1 X Mark III vs Panasonic GM5
- Canon G1 X Mark III vs Pentax K-5
Specifications: Canon 70D vs Canon G1 X Mark III
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 Model||Canon 70D||Canon G1 X Mark III|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||24-72mm f/2.8-5.6|
|Launch Date||July 2013||October 2017|
|Launch Price||USD 1,199||USD 1,299|
|Sensor Specs||Canon 70D||Canon G1 X Mark III|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.5 x 15.0 mm||22.3 x 14.9 mm|
|Sensor Area||337.5 mm2||332.27 mm2|
|Sensor Diagonal||27 mm||26.8 mm|
|Sensor Resolution||20 Megapixels||24 Megapixels|
|Image Resolution||5472 x 3648 pixels||6000 x 4000 pixels|
|Pixel Pitch||4.11 μm||3.72 μm|
|Pixel Density||5.91 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60p Video|
|ISO Setting||100 - 12,800 ISO||100 - 25,600 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||DIGIC 5+||DIGIC 7|
|DXO Sensor Quality (score)||68||..|
|DXO Color Depth (bits)||22.5||..|
|DXO Dynamic Range (EV)||11.6||..|
|DXO Low Light (ISO)||926||..|
|Screen Specs||Canon 70D||Canon G1 X Mark III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||98%||100%|
|Viewfinder Resolution||2360k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Shooting Specs||Canon 70D||Canon G1 X Mark III|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/2000s|
|Continuous Shooting||7 shutter flaps/s||9 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon 70D||Canon G1 X Mark III|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon 70D||Canon G1 X Mark III|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||920 shots per charge||200 shots per charge|
139 x 104 x 79 mm
(5.5 x 4.1 x 3.1 in)
115 x 78 x 51 mm
(4.5 x 3.1 x 2.0 in)
|Camera Weight||755 g (26.6 oz)||399 g (14.1 oz)|
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