Canon G7 X Mark III vs Pentax K-3 II
The Canon PowerShot G7 X Mark III and the Pentax K-3 II are two digital cameras that were revealed to the public, respectively, in July 2019 and April 2015. The G7X Mark III is a fixed lens compact, while the K-3 II is a DSLR. The cameras are based on an one-inch (G7X Mark III) and an APS-C (K-3 II) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 24.1 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 PowerShot G7 X Mark III and the Pentax K-3 II? 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.
Body comparison
The physical size and weight of the Canon G7 X Mark III and the Pentax K-3 II are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
Both cameras are available in two different colors (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 II is considerably larger (105 percent) than the Canon G7 X Mark III. It is noteworthy in this context that the K-3 II is splash and dust-proof, while the G7X Mark III does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G7X Mark III has a lens built in, whereas the K-3 II 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 G7X Mark III gets 235 shots out of its Canon NB-13L battery, while the K-3 II can take 720 images on a single charge of its Pentax D-LI90 power pack. The power pack in the G7X Mark III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X Mark III | 105 mm | 61 mm | 41 mm | 304 g | 235 | n | Jul 2019 | 749 | amazon.com | |
2. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | 1,099 | ebay.com | |
3. | Canon G5 X Mark II | 111 mm | 61 mm | 46 mm | 340 g | 230 | n | Jul 2019 | 899 | ebay.com | |
4. | Canon SX740 | 110 mm | 64 mm | 40 mm | 299 g | 265 | n | Jul 2018 | 399 | amazon.com | |
5. | Canon G7 X Mark II | 106 mm | 61 mm | 42 mm | 319 g | 265 | n | Feb 2016 | 699 | ebay.com | |
6. | Canon G5 X | 112 mm | 76 mm | 44 mm | 353 g | 210 | n | Oct 2015 | 799 | ebay.com | |
7. | Canon G7 X | 103 mm | 60 mm | 40 mm | 304 g | 210 | n | Sep 2014 | 699 | ebay.com | |
8. | Leica C-LUX | 113 mm | 67 mm | 46 mm | 340 g | 370 | n | Jun 2018 | 1,049 | ebay.com | |
9. | Nikon D7200 | 136 mm | 107 mm | 76 mm | 765 g | 1110 | Y | Mar 2015 | 1,199 | ebay.com | |
10. | Panasonic FZ1000 II | 136 mm | 97 mm | 131 mm | 810 g | 350 | n | Feb 2019 | 899 | amazon.com | |
11. | Panasonic ZS200 | 111 mm | 65 mm | 45 mm | 340 g | 370 | n | Feb 2018 | 799 | amazon.com | |
12. | Pentax K-3 III | 135 mm | 104 mm | 74 mm | 820 g | 800 | Y | Mar 2021 | 1,999 | amazon.com | |
13. | Pentax K-S2 | 123 mm | 91 mm | 73 mm | 678 g | 410 | Y | Feb 2015 | 749 | ebay.com | |
14. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | 1,299 | ebay.com | |
15. | Pentax K-5 II | 131 mm | 97 mm | 73 mm | 760 g | 740 | Y | Sep 2012 | 1,099 | ebay.com | |
16. | Sony ZV-1 | 105 mm | 60 mm | 44 mm | 294 g | 260 | n | May 2020 | 799 | ebay.com | |
17. | Sony RX100 VI | 102 mm | 58 mm | 43 mm | 301 g | 240 | n | Jun 2018 | 1,199 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
The price is, of course, an important factor in any camera decision. 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 G7X Mark III was launched at a lower price than the K-3 II, 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.
Sensor comparison
The size of the imaging sensor is a crucial determinant 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon G7 X Mark III features an one-inch sensor and the Pentax K-3 II an APS-C sensor. The sensor area in the K-3 II is 216 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24.1MP, the K-3 II offers a higher resolution than the G7X Mark III (20MP), but the K-3 II nevertheless has larger individual pixels (pixel pitch of 3.90μm versus 2.41μm for the G7X Mark III) due to its larger sensor. However, the G7X Mark III is a much more recent model (by 4 years and 2 months) than the K-3 II, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the K-3 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax K-3 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 II for good quality output (200 dots per inch) amounts to 30.1 x 20 inches or 76.4 x 50.8 cm, for very good quality (250 dpi) 24.1 x 16 inches or 61.1 x 40.6 cm, and for excellent quality (300 dpi) 20.1 x 13.3 inches or 50.9 x 33.9 cm. The corresponding values for the Canon G7 X Mark III 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.
Unlike the G7X Mark III, the K-3 II has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Canon PowerShot G7 X Mark III has a native sensitivity range from ISO 125 to ISO 12800, which can be extended to ISO 125-25600. The corresponding ISO settings for the Pentax K-3 II are ISO 100 to ISO 51200 (no boost).
In terms of underlying technology, the G7X Mark III is build around a BSI-CMOS sensor, while the K-3 II uses a 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.
For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X Mark III | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
2. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
3. | Canon G5 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
4. | Canon SX740 | 1/2.3 | 20.2 | 5184 | 3888 | 4K/30p | 20.6 | 12.1 | 1050 | 51 | |
5. | Canon G7 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.8 | 11.9 | 260 | 62 | |
6. | Canon G5 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.4 | 12.3 | 471 | 62 | |
7. | Canon G7 X | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 23.0 | 12.7 | 556 | 71 | |
8. | Leica C-LUX | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 12.3 | 481 | 64 | |
9. | Nikon D7200 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.5 | 14.6 | 1333 | 87 | |
10. | Panasonic FZ1000 II | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 12.4 | 546 | 65 | |
11. | Panasonic ZS200 | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.0 | 12.2 | 449 | 64 | |
12. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
13. | Pentax K-S2 | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 23.6 | 12.9 | 1514 | 79 | |
14. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
15. | Pentax K-5 II | APS-C | 16.1 | 4928 | 3264 | 1080/25p | 23.8 | 14.1 | 1235 | 82 | |
16. | Sony ZV-1 | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.6 | 669 | 66 | |
17. | Sony RX100 VI | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 12.3 | 478 | 64 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the G7X Mark III provides a higher video resolution than the K-3 II. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the K-3 II has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G7X Mark III relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon G7 X Mark III, the Pentax K-3 II, and comparable cameras.
# | 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 G7 X Mark III | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
2. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
3. | Canon G5 X Mark II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
4. | Canon SX740 | none | n | 3.0 / 922 | tilting | n | 1/3200s | 10.0/s | Y | Y | |
5. | Canon G7 X Mark II | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 8.0/s | Y | Y | |
6. | Canon G5 X | 2360 | n | 3.0 / 1040 | swivel | Y | 1/2000s | 5.9/s | Y | Y | |
7. | Canon G7 X | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 6.5/s | Y | Y | |
8. | Leica C-LUX | 2330 | n | 3.0 / 1240 | fixed | Y | 1/2000s | 10.0/s | Y | Y | |
9. | Nikon D7200 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 6.0/s | Y | n | |
10. | Panasonic FZ1000 II | 2360 | n | 3.0 / 1240 | swivel | Y | 1/4000s | 12.0/s | Y | Y | |
11. | Panasonic ZS200 | 2330 | n | 3.0 / 1240 | fixed | Y | 1/2000s | 10.0/s | Y | Y | |
12. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
13. | Pentax K-S2 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 5.4/s | Y | Y | |
14. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
15. | Pentax K-5 II | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 7.0/s | Y | Y | |
16. | Sony ZV-1 | none | n | 3.0 / 922 | swivel | Y | 1/2000s | 24.0/s | n | n | |
17. | Sony RX100 VI | 2359 | n | 3.0 / 1229 | tilting | Y | 1/2000s | 24.0/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 G7X Mark III has one, while the K-3 II does not. While the built-in flash of the G7X Mark III is not very powerful, it can at times be useful as a fill-in light.
The G7X Mark III has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the K-3 II does not have a selfie-screen.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 G7X Mark III 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 G7 X Mark III and the Pentax K-3 II 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.
Concerning the storage of imaging data, both the G7X Mark III and the K-3 II write their files to SDXC cards. The K-3 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the G7X Mark III only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 G7 X Mark III and Pentax K-3 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
# | Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X Mark III | - | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
2. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
3. | Canon G5 X Mark II | - | stereo / mono | - | - | micro | 3.1 | Y | - | Y | |
4. | Canon SX740 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
5. | Canon G7 X Mark II | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
6. | Canon G5 X | Y | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
7. | Canon G7 X | - | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
8. | Leica C-LUX | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
9. | Nikon D7200 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
10. | Panasonic FZ1000 II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
11. | Panasonic ZS200 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
12. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
13. | Pentax K-S2 | Y | mono / mono | Y | - | micro | 2.0 | Y | Y | - | |
14. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
15. | Pentax K-5 II | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
16. | Sony ZV-1 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
17. | Sony RX100 VI | - | stereo / mono | - | - | micro | 2.0 | Y | Y | Y |
It is notable that the G7X Mark III offers wifi support, while the K-3 II does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Pentax K-3 II (unlike the G7X Mark III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Travel and landscape photographers will find it useful that the K-3 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The G7X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the K-3 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-3 II was succeeded by the Pentax K-3 III. Further information on the features and operation of the G7X Mark III and K-3 II can be found, respectively, in the Canon G7 X Mark III Manual (free pdf) or the online Pentax K-3 II Manual.
Review summary
So how do things add up? Which of the two cameras – the Canon G7 X Mark III or the Pentax K-3 II – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon PowerShot G7 X Mark III:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (30 vs 8.3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Ready to shoot: Comes with a built-in lens, while the K-3 II requires a separate lens.
- More compact: Is smaller (105x61mm vs 131x100mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the K-3 II).
- Easier travel charging: Can be conveniently charged via its USB port.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 4 years and 2 months of technical progress since the K-3 II launch.
Arguments in favor of the Pentax K-3 II:
- More detail: Has more megapixels (24.1 vs 20MP), which boosts linear resolution by 10%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- 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.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (720 versus 235) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- 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.
- More heavily discounted: Has been around for much longer (launched in April 2015).
If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (16 points each). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 G7 X Mark III and the Pentax K-3 II place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the G7X Mark III and the K-3 II in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
Expert reviews
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G7 X Mark III | .. | + + | 4/5 | 81/100 | 4/5 | .. | Jul 2019 | 749 | amazon.com | |
2. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | 1,099 | ebay.com | |
3. | Canon G5 X Mark II | 4/5 | + | 4/5 | 82/100 | .. | 4/5 | Jul 2019 | 899 | ebay.com | |
4. | Canon SX740 | .. | + | 3.5/5 | .. | 4/5 | 4/5 | Jul 2018 | 399 | amazon.com | |
5. | Canon G7 X Mark II | 4.5/5 | + + | .. | 81/100 | 4.5/5 | 4.5/5 | Feb 2016 | 699 | ebay.com | |
6. | Canon G5 X | 5/5 | + + | .. | 78/100 | 4.5/5 | 4.5/5 | Oct 2015 | 799 | ebay.com | |
7. | Canon G7 X | 4/5 | + + | .. | 77/100 | 4.5/5 | 4.5/5 | Sep 2014 | 699 | ebay.com | |
8. | Leica C-LUX | .. | .. | 3.5/5 | .. | 4.5/5 | 4/5 | Jun 2018 | 1,049 | ebay.com | |
9. | Nikon D7200 | 4/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Mar 2015 | 1,199 | ebay.com | |
10. | Panasonic FZ1000 II | .. | .. | .. | 83/100 | 4.5/5 | 4.5/5 | Feb 2019 | 899 | amazon.com | |
11. | Panasonic ZS200 | .. | + + | 4.5/5 | 81/100 | 4.5/5 | 4.5/5 | Feb 2018 | 799 | amazon.com | |
12. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | 1,999 | amazon.com | |
13. | Pentax K-S2 | 4.5/5 | .. | .. | .. | 5/5 | 4.5/5 | Feb 2015 | 749 | ebay.com | |
14. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | 1,299 | ebay.com | |
15. | Pentax K-5 II | 5/5 | .. | .. | 80/100 | 5/5 | 4.5/5 | Sep 2012 | 1,099 | ebay.com | |
16. | Sony ZV-1 | 4/5 | + | 4/5 | 85/100 | 4/5 | 4.5/5 | May 2020 | 799 | ebay.com | |
17. | Sony RX100 VI | 4.5/5 | + + | .. | 83/100 | 4/5 | 4.5/5 | Jun 2018 | 1,199 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 10D vs Canon G7 X Mark III
- Canon G7 X Mark II vs Pentax K-3 II
- Canon G7 X Mark III vs Nikon D3400
- Canon G7 X Mark III vs Nikon D3X
- Canon G7 X Mark III vs Nikon D90
- Canon G7 X Mark III vs Olympus E-M10 IV
- Canon G7 X Mark III vs Olympus XZ-1
- Canon M6 vs Pentax K-3 II
- Fujifilm XP130 vs Pentax K-3 II
- Leica M Typ 262 vs Pentax K-3 II
- Leica T vs Pentax K-3 II
- Panasonic LX15 vs Pentax K-3 II
Specifications: Canon G7 X Mark III vs Pentax K-3 II
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 G7 X Mark III | Pentax K-3 II |
---|---|---|
Camera Type | Fixed lens compact camera | Digital single lens reflex |
Camera Lens | 24-100mm f/1.8-2.8 | Pentax K mount lenses |
Launch Date | July 2019 | April 2015 |
Launch Price | USD 749 | USD 1,099 |
Sensor Specs | Canon G7 X Mark III | Pentax K-3 II |
Sensor Technology | BSI-CMOS | CMOS |
Sensor Format | 1" Sensor | APS-C Sensor |
Sensor Size | 13.2 x 8.8 mm | 23.5 x 15.6 mm |
Sensor Area | 116.16 mm2 | 366.6 mm2 |
Sensor Diagonal | 15.9 mm | 28.2 mm |
Crop Factor | 2.7x | 1.5x |
Sensor Resolution | 20 Megapixels | 24.1 Megapixels |
Image Resolution | 5472 x 3648 pixels | 6016 x 4000 pixels |
Pixel Pitch | 2.41 μm | 3.90 μm |
Pixel Density | 17.18 MP/cm2 | 6.56 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 4K/30p Video | 1080/60i Video |
ISO Setting | 125 - 12,800 ISO | 100 - 51,200 ISO |
ISO Boost | 125 - 25,600 ISO | no Enhancement |
Image Processor | DIGIC 8 | PRIME III |
DXO Sensor Quality (score) | .. | 80 |
DXO Color Depth (bits) | .. | 23.6 |
DXO Dynamic Range (EV) | .. | 13.6 |
DXO Low Light (ISO) | .. | 1106 |
Screen Specs | Canon G7 X Mark III | Pentax K-3 II |
Viewfinder Type | no viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.63x | |
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 | 1037k dots |
LCD Attachment | Tilting screen | Fixed screen |
Touch Input | Touchscreen | no Touchscreen |
Shooting Specs | Canon G7 X Mark III | Pentax K-3 II |
Focus System | Contrast-detect AF | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/2000s | 1/8000s |
Continuous Shooting | 30 shutter flaps/s | 8.3 shutter flaps/s |
Electronic Shutter | up to 1/25600s | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | Lens-based stabilization | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | UHS-I | UHS-I |
Connectivity Specs | Canon G7 X Mark III | Pentax K-3 II |
External Flash | no Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 3.1 | USB 3.0 |
HDMI Port | micro HDMI | mini HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | Wifi built-in | no Wifi |
Bluetooth Support | Bluetooth built-in | no Bluetooth |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Canon G7 X Mark III | Pentax K-3 II |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon NB-13L | Pentax D-LI90 |
Battery Life (CIPA) | 235 shots per charge | 720 shots per charge |
In-Camera Charging | USB charging | no USB charging |
Body Dimensions |
105 x 61 x 41 mm (4.1 x 2.4 x 1.6 in) |
131 x 100 x 77 mm (5.2 x 3.9 x 3.0 in) |
Camera Weight | 304 g (10.7 oz) | 800 g (28.2 oz) |
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