Canon G1 X Mark III vs Pentax K-3 III
The Canon PowerShot G1 X Mark III and the Pentax K-3 III are two enthusiast cameras that were revealed to the public, respectively, in October 2017 and March 2021. The G1X Mark III is a fixed lens compact, while the K-3 III is a DSLR. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 24 megapixels, whereas the Pentax provides 25.6 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 G1 X Mark III and the Pentax K-3 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Canon G1 X Mark III and the Pentax K-3 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.
The K-3 III can be obtained in two different colors (black, silver), while the G1X Mark III is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 III is considerably larger (57 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 K-3 III 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 K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack.
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.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G1 X Mark III | 115 mm | 78 mm | 51 mm | 399 g | 200 | Y | Oct 2017 | 1,299 | ebay.com | |
2. | Pentax K-3 III | 135 mm | 104 mm | 74 mm | 820 g | 800 | Y | Mar 2021 | 1,999 | amazon.com | |
3. | Canon M50 | 116 mm | 88 mm | 59 mm | 390 g | 235 | n | Feb 2018 | 779 | ebay.com | |
4. | Canon 6D Mark II | 144 mm | 111 mm | 75 mm | 765 g | 1200 | Y | Jun 2017 | 1,999 | amazon.com | |
5. | Canon 200D | 122 mm | 93 mm | 70 mm | 453 g | 650 | n | Jun 2017 | 549 | ebay.com | |
6. | Canon G9 X Mark II | 98 mm | 58 mm | 31 mm | 206 g | 235 | n | Jan 2017 | 529 | ebay.com | |
7. | Canon 80D | 139 mm | 105 mm | 79 mm | 730 g | 960 | Y | Feb 2016 | 1,199 | ebay.com | |
8. | Canon SX540 | 120 mm | 82 mm | 92 mm | 442 g | 205 | n | Jan 2016 | 399 | ebay.com | |
9. | Fujifilm X100V | 128 mm | 75 mm | 53 mm | 478 g | 420 | Y | Feb 2020 | 1,399 | ebay.com | |
10. | Fujifilm X100F | 127 mm | 75 mm | 52 mm | 469 g | 390 | n | Jan 2017 | 1,299 | ebay.com | |
11. | Nikon D7500 | 136 mm | 104 mm | 73 mm | 720 g | 950 | Y | Apr 2017 | 1,299 | amazon.com | |
12. | Panasonic S5 | 133 mm | 98 mm | 82 mm | 714 g | 440 | Y | Sep 2020 | 1,999 | amazon.com | |
13. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | 1,099 | ebay.com | |
14. | Pentax K-70 | 126 mm | 93 mm | 74 mm | 688 g | 410 | Y | Jun 2016 | 649 | ebay.com | |
15. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | 1,099 | ebay.com | |
16. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | 1,299 | ebay.com | |
17. | Sony RX10 III | 133 mm | 94 mm | 127 mm | 1051 g | 420 | Y | Mar 2016 | 1,499 | 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. The G1X Mark III was launched at a lower price than the K-3 III, 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 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 K-3 III is 9 percent bigger. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 25.6MP, the K-3 III offers a higher resolution than the G1X Mark III (24MP), but the K-3 III nevertheless has marginally larger individual pixels (pixel pitch of 3.76μm versus 3.72μm for the G1X Mark III) due to its larger sensor. Moreover, the K-3 III is a much more recent model (by 3 years and 5 months) than the G1X Mark III, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the K-3 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The G1X Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the G1X Mark III, the K-3 III has the capacity to capture high quality composite images (YESMP) 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 G1 X Mark III has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (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.
# | 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 | 4000 | 1080/60p | 23.8 | 13.2 | 1649 | 81 | |
2. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
3. | Canon M50 | APS-C | 24.0 | 6000 | 4000 | 4K/24p | 23.8 | 13.3 | 1684 | 81 | |
4. | Canon 6D Mark II | Full Frame | 26.0 | 6240 | 4160 | 1080/60p | 24.4 | 11.9 | 2862 | 85 | |
5. | Canon 200D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.4 | 1041 | 79 | |
6. | Canon G9 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 21.9 | 12.5 | 522 | 65 | |
7. | Canon 80D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.2 | 1135 | 79 | |
8. | Canon SX540 | 1/2.3 | 20.2 | 5184 | 3888 | 1080/60p | 20.3 | 11.7 | 806 | 48 | |
9. | Fujifilm X100V | APS-C | 26.0 | 6240 | 4160 | 4K/30p | 24.2 | 13.6 | 1996 | 84 | |
10. | Fujifilm X100F | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.9 | 13.2 | 1704 | 81 | |
11. | Nikon D7500 | APS-C | 20.7 | 5568 | 3712 | 4K/30p | 24.3 | 14.0 | 1483 | 86 | |
12. | Panasonic S5 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.1 | 14.5 | 2697 | 94 | |
13. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
14. | Pentax K-70 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 23.8 | 13.1 | 1639 | 80 | |
15. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
16. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
17. | Sony RX10 III | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 23.1 | 12.6 | 472 | 70 | |
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 K-3 III provides a better video resolution than the G1X Mark III. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/60p.
Feature comparison
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 K-3 III 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 G1 X Mark III and Pentax K-3 III along with similar information for a selection of comparators.
# | 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 III | 2360 | n | 3.0 / 1040 | swivel | Y | 1/2000s | 9.0/s | Y | Y | |
2. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
3. | Canon M50 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 10.0/s | Y | n | |
4. | Canon 6D Mark II | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 6.5/s | n | n | |
5. | Canon 200D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
6. | Canon G9 X Mark II | none | n | 3.0 / 1040 | fixed | Y | 1/2000s | 8.2/s | Y | Y | |
7. | Canon 80D | optical | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 7.0/s | Y | n | |
8. | Canon SX540 | none | n | 3.0 / 461 | fixed | n | 1/2000s | 5.9/s | Y | Y | |
9. | Fujifilm X100V | 3690 | n | 3.0 / 1620 | tilting | Y | 1/4000s | 11.0/s | n | n | |
10. | Fujifilm X100F | 2360 | n | 3.0 / 1040 | fixed | n | 1/4000s | 8.0/s | Y | n | |
11. | Nikon D7500 | optical | Y | 3.2 / 922 | tilting | Y | 1/8000s | 8.0/s | Y | n | |
12. | Panasonic S5 | 2360 | n | 3.0 / 1840 | swivel | Y | 1/8000s | 7.0/s | n | Y | |
13. | Pentax KP | optical | n | 3.0 / 921 | tilting | n | 1/6000s | 7.0/s | Y | Y | |
14. | Pentax K-70 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 6.0/s | Y | Y | |
15. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
16. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
17. | Sony RX10 III | 2359 | Y | 3.0 / 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 K-3 III 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.
The G1X 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 III does not have a selfie-screen.The Canon G1 X Mark III and the Pentax K-3 III 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 G1X Mark III and the K-3 III write their files to SDXC cards. The K-3 III 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 K-3 III supports UHS-II cards (on its first slot), while the G1X Mark III can use UHS-I cards.
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 Pentax K-3 III 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 G1 X Mark III | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | Y | |
2. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
3. | Canon M50 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
4. | Canon 6D Mark II | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
5. | Canon 200D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
6. | Canon G9 X Mark II | - | stereo / mono | - | - | micro | 2.0 | Y | Y | Y | |
7. | Canon 80D | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
8. | Canon SX540 | - | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
9. | Fujifilm X100V | Y | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
10. | Fujifilm X100F | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
11. | Nikon D7500 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | - | Y | |
12. | Panasonic S5 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
13. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - | |
14. | Pentax K-70 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
15. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
16. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
17. | Sony RX10 III | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the K-3 III 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 Pentax K-3 III (unlike the G1X 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 III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The K-3 III is a recent model that features in the current product line-up of Pentax. 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 K-3 III can be found, respectively, in the Canon G1 X Mark III Manual (free pdf) or the online Pentax K-3 III Manual.
Review summary
So what conclusions can be drawn? Is the Canon G1 X Mark III better than the Pentax K-3 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon PowerShot G1 X Mark III:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Ready to shoot: Comes with a built-in lens, while the K-3 III requires a separate lens.
- More compact: Is smaller (115x78mm vs 135x104mm) 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 III).
- 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).
Arguments in favor of the Pentax K-3 III:
- 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 video: Provides higher definition movie capture (4K/30p 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.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- 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 (1620k 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.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (800 versus 200) out of a single battery charge.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- 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 5 months of technical progress since the G1X Mark III launch.
If the count of individual advantages (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (19 : 12 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 G1 X Mark III and the Pentax K-3 III 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 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 G1X Mark III or the K-3 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.
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.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G1 X Mark III | 5/5 | + | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Oct 2017 | 1,299 | ebay.com | |
2. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | 1,999 | amazon.com | |
3. | Canon M50 | .. | + | 4/5 | 79/100 | .. | 3.5/5 | Feb 2018 | 779 | ebay.com | |
4. | Canon 6D Mark II | 4/5 | + | 4/5 | 80/100 | 4.5/5 | 4/5 | Jun 2017 | 1,999 | amazon.com | |
5. | Canon 200D | 4/5 | + + | 4/5 | 78/100 | 4.5/5 | 4.5/5 | Jun 2017 | 549 | ebay.com | |
6. | Canon G9 X Mark II | 4/5 | .. | 4/5 | 75/100 | 4.5/5 | 4.5/5 | Jan 2017 | 529 | ebay.com | |
7. | Canon 80D | 4/5 | + + | 4.5/5 | 84/100 | 4.5/5 | 4.5/5 | Feb 2016 | 1,199 | ebay.com | |
8. | Canon SX540 | .. | .. | .. | .. | .. | .. | Jan 2016 | 399 | ebay.com | |
9. | Fujifilm X100V | 5/5 | + + | 4.5/5 | 86/100 | 5/5 | 4.5/5 | Feb 2020 | 1,399 | ebay.com | |
10. | Fujifilm X100F | 5/5 | + | 3.9/5 | 83/100 | 4.5/5 | 4.5/5 | Jan 2017 | 1,299 | ebay.com | |
11. | Nikon D7500 | 4.5/5 | + + | 4.5/5 | 86/100 | 5/5 | 4.5/5 | Apr 2017 | 1,299 | amazon.com | |
12. | Panasonic S5 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4.5/5 | Sep 2020 | 1,999 | amazon.com | |
13. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | 1,099 | ebay.com | |
14. | Pentax K-70 | 4.5/5 | .. | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Jun 2016 | 649 | ebay.com | |
15. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | 1,099 | ebay.com | |
16. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | 1,299 | ebay.com | |
17. | Sony RX10 III | 5/5 | + | .. | 84/100 | 4.5/5 | 4.5/5 | Mar 2016 | 1,499 | ebay.com | |
Note: (+ +) 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 G1 X Mark III vs Canon SL2
- Canon G1 X Mark III vs Nikon D3200
- Canon G1 X Mark III vs Nikon Z7
- Canon G1 X Mark III vs Olympus E-PL5
- Canon G1 X Mark III vs Panasonic LX10
- Canon G1 X Mark III vs Sony HX99
- Canon M50 vs Pentax K-3 III
- Canon M6 vs Pentax K-3 III
- Canon SX70 vs Pentax K-3 III
- Nikon Z50 vs Pentax K-3 III
- Nikon Z7 vs Pentax K-3 III
- Olympus E-PL9 vs Pentax K-3 III
Specifications: Canon G1 X Mark III vs Pentax K-3 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 G1 X Mark III | Pentax K-3 III |
---|---|---|
Camera Type | Fixed lens compact camera | Digital single lens reflex |
Camera Lens | 24-72mm f/2.8-5.6 | Pentax K mount lenses |
Launch Date | October 2017 | March 2021 |
Launch Price | USD 1,299 | USD 1,999 |
Sensor Specs | Canon G1 X Mark III | Pentax K-3 III |
Sensor Technology | CMOS | CMOS |
Sensor Format | APS-C Sensor | APS-C Sensor |
Sensor Size | 22.3 x 14.9 mm | 23.3 x 15.5 mm |
Sensor Area | 332.27 mm2 | 361.15 mm2 |
Sensor Diagonal | 26.8 mm | 28 mm |
Crop Factor | 1.5x | 1.5x |
Sensor Resolution | 24 Megapixels | 25.6 Megapixels |
Image Resolution | 6000 x 4000 pixels | 6192 x 4128 pixels |
Pixel Pitch | 3.72 μm | 3.76 μm |
Pixel Density | 7.22 MP/cm2 | 7.08 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | 1080/60p Video | 4K/30p Video |
ISO Setting | 100 - 25,600 ISO | 100 - 160,000 ISO |
Image Processor | DIGIC 7 | PRIME V |
Screen Specs | Canon G1 X Mark III | Pentax K-3 III |
Viewfinder Type | Electronic viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.70x | |
Viewfinder Resolution | 2360k 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 | 1620k dots |
LCD Attachment | Swivel screen | Fixed screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Canon G1 X Mark III | Pentax K-3 III |
Focus System | On-Sensor Phase-detect | Phase-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/2000s | 1/8000s |
Continuous Shooting | 9 shutter flaps/s | 12 shutter flaps/s |
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 | Single UHS-II |
Connectivity Specs | Canon G1 X Mark III | Pentax K-3 III |
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 |
Geotagging | no internal GPS | GPS built-in |
Body Specs | Canon G1 X Mark III | Pentax K-3 III |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Canon NB-13L | Pentax D-LI90 |
Battery Life (CIPA) | 200 shots per charge | 800 shots per charge |
Body Dimensions |
115 x 78 x 51 mm (4.5 x 3.1 x 2.0 in) |
135 x 104 x 74 mm (5.3 x 4.1 x 2.9 in) |
Camera Weight | 399 g (14.1 oz) | 820 g (28.9 oz) |
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