Canon G9 X Mark II vs Pentax K-1
The Canon PowerShot G9 X Mark II and the Pentax K-1 are two digital cameras that were officially introduced, respectively, in January 2017 and February 2016. The G9X Mark II is a fixed lens compact, while the K-1 is a DSLR. The cameras are based on an one-inch (G9X Mark II) and a full frame (K-1) sensor. The Canon has a resolution of 20 megapixels, whereas the Pentax provides 36.2 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 G9 X Mark II and the Pentax K-1? 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 G9 X Mark II and the Pentax K-1. 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 width, height and depth dimensions 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-1 is considerably larger (165 percent) than the Canon G9 X Mark II. It is noteworthy in this context that the K-1 is splash and dust-proof, while the G9X Mark II does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G9X Mark II has a lens built in, whereas the K-1 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 G9X Mark II gets 235 shots out of its NB-13L battery, while the K-1 can take 760 images on a single charge of its D-LI90 power pack. The power pack in the G9X Mark II 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. 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.
|1.||Canon G9 X Mark II||98 mm||58 mm||31 mm||206 g||235||n||Jan 2017||529|
|2.||Pentax K-1||137 mm||110 mm||86 mm||1010 g||760||Y||Feb 2016||1,799|
|3.||Canon SX70||127 mm||91 mm||117 mm||608 g||325||n||Sep 2018||549|
|4.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|5.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|6.||Canon 5D Mark IV||151 mm||116 mm||76 mm||890 g||900||Y||Aug 2016||3,499|
|7.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|8.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529|
|9.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|10.||Nikon D500||147 mm||115 mm||81 mm||860 g||1240||Y||Jan 2016||1,999|
|11.||Olympus E-M1 II||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|12.||Pentax K-1 II||137 mm||110 mm||86 mm||1010 g||670||Y||Feb 2018||1,999|
|13.||Sony HX99||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||449|
|14.||Sony HX95||102 mm||58 mm||36 mm||242 g||370||n||Aug 2018||429|
|15.||Sony A99 II||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199|
|16.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999|
|17.||Sony RX100||102 mm||58 mm||36 mm||240 g||330||n||Jun 2012||649|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G9X Mark II was launched at a lower price than the K-1, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G9 X Mark II features an one-inch sensor and the Pentax K-1 a full frame sensor. The sensor area in the K-1 is 643 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 36.2MP, the K-1 offers a higher resolution than the G9X Mark II (20MP), but the K-1 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 2.41μm for the G9X Mark II) due to its larger sensor. However, the G9X Mark II is a somewhat more recent model (by 10 months) than the K-1, and its sensor might 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-1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax K-1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-1 for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Canon G9 X Mark II 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 G9X Mark II, the K-1 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 G9 X Mark II has a native sensitivity range from ISO 125 to ISO 12800. The corresponding ISO settings for the Pentax K-1 are ISO 100 to ISO 204800 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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"). Of the two cameras under consideration, the K-1 offers substantially better image quality than the G9X Mark II (overall score 31 points higher). The advantage is based on 3.5 bits higher color depth, 2.1 EV in additional dynamic range, and 2.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|1.||Canon G9 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|2.||Pentax K-1||Full Frame||36.2||7360||4912||1080/60i||25.4||14.6||3280||96|
|6.||Canon 5D Mark IV||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|7.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
|8.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|9.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|11.||Olympus E-M1 II||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|12.||Pentax K-1 II||Full Frame||36.2||7360||4912||1080/60i||..||..||..||..|
|15.||Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|16.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the G9X Mark II provides a higher frame rate than the K-1. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the K-1 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the G9X Mark II 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 G9 X Mark II, the Pentax K-1, and comparable cameras.
|1.||Canon G9 X Mark II||none||n||3.0||1040||fixed||Y||1/2000s||8.2||Y||Y|
|6.||Canon 5D Mark IV||optical||Y||3.2||1620||fixed||Y||1/8000s||7.0||n||n|
|7.||Canon G7 X Mark II||none||n||3.0||1040||tilting||Y||1/2000s||8.0||Y||Y|
|8.||Canon G9 X||none||n||3.0||1040||fixed||Y||1/2000s||6.0||Y||Y|
|9.||Canon G7 X||none||n||3.0||1040||tilting||Y||1/2000s||6.5||Y||Y|
|11.||Olympus E-M1 II||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|12.||Pentax K-1 II||optical||Y||3.2||1037||full-flex||n||1/8000s||4.4||n||Y|
|15.||Sony A99 II||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y|
|16.||Sony RX100 V||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y|
One difference between the cameras concerns the presence of an on-board flash. The G9X Mark II has one, while the K-1 does not. While the built-in flash of the G9X Mark II is not very powerful, it can at times be useful as a fill-in light.
The Canon G9 X Mark II and the Pentax K-1 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 G9X Mark II and the K-1 write their files to SDXC cards. The K-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G9X Mark II 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.
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 G9 X Mark II and Pentax K-1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Canon G9 X Mark II||-||stereo||mono||-||-||micro||2.0||Y||Y||Y|
|6.||Canon 5D Mark IV||Y||mono||mono||Y||Y||mini||3.0||Y||Y||-|
|7.||Canon G7 X Mark II||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon G9 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|9.||Canon G7 X||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
|11.||Olympus E-M1 II||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-|
|12.||Pentax K-1 II||Y||stereo||mono||Y||Y||micro||2.0||Y||-||-|
|15.||Sony A99 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y|
|16.||Sony RX100 V||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the K-1 has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G9X Mark II does not feature such a mic input.
Studio photographers will appreciate that the Pentax K-1 (unlike the G9X Mark II) 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-1 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The G9X Mark II is a recent model that features in the current product line-up of Canon. In contrast, the K-1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-1 was succeeded by the Pentax K-1 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Pentax websites.
So how do things add up? Which of the two cameras – the Canon G9 X Mark II or the Pentax K-1 – 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 G9 X Mark II:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (8.2 vs 4.4 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with a built-in lens, while the K-1 requires a separate lens.
- More compact: Is smaller (98x58mm vs 137x110mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the K-1).
- 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
- 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: Is somewhat more recent (announced 10 months after the K-1).
Arguments in favor of the Pentax K-1:
- More detail: Has more megapixels (36.2 vs 20MP), which boosts linear resolution by 35%.
- 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 image quality: Scores substantially higher (31 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.5 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.7 stops ISO advantage).
- 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.
- 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.
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- 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 (760 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 on the market for longer (launched in February 2016).
If the count of individual advantages (bullet points above) is taken as a guide, the K-1 is the clear winner of the contest (22 : 13 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 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 G9 X Mark II and the Pentax K-1 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 G9X Mark II and the K-1 in practical situations. 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], 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 G9 X Mark II||4/5||..||75/100||4.5/5||4.5/5||Jan 2017||529|
|2.||Pentax K-1||5/5||..||84/100||5/5||5/5||Feb 2016||1,799|
|3.||Canon SX70||..||+ +||..||3.5/5||3.5/5||Sep 2018||549|
|4.||Canon M100||3/5||+||..||4/5||3.5/5||Aug 2017||499|
|5.||Canon SL2||4/5||+ +||78/100||4.5/5||4.5/5||Jun 2017||549|
|6.||Canon 5D Mark IV||4.5/5||+ +||87/100||4.5/5||4.5/5||Aug 2016||3,499|
|7.||Canon G7 X Mark II||4.5/5||+ +||81/100||4.5/5||4.5/5||Feb 2016||699|
|8.||Canon G9 X||3.5/5||+ +||..||4.5/5||4.5/5||Oct 2015||529|
|9.||Canon G7 X||4/5||+ +||77/100||4.5/5||4.5/5||Sep 2014||699|
|10.||Nikon D500||5/5||+ +||91/100||4.5/5||5/5||Jan 2016||1,999|
|11.||Olympus E-M1 II||5/5||+ +||85/100||4.5/5||4.5/5||Sep 2016||1,999|
|12.||Pentax K-1 II||..||..||79/100||4.5/5||4.5/5||Feb 2018||1,999|
|13.||Sony HX99||..||..||..||4/5||4.5/5||Aug 2018||449|
|14.||Sony HX95||..||..||..||..||..||Aug 2018||429|
|15.||Sony A99 II||..||..||85/100||4.5/5||4.5/5||Sep 2016||3,199|
|16.||Sony RX100 V||4.5/5||+ +||83/100||4/5||4.5/5||Oct 2016||999|
|17.||Sony RX100||5/5||+ +||78/100||4/5||5/5||Jun 2012||649|
|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. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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.
Specifications: Canon G9 X Mark II vs Pentax K-1
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 G9 X Mark II||Pentax K-1|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28-84mm f/2.0-4.9||Pentax K mount lenses|
|Launch Date||January 2017||February 2016|
|Launch Price||USD 529||USD 1,799|
|Sensor Specs||Canon G9 X Mark II||Pentax K-1|
|Sensor Format||1" Sensor||Full Frame Sensor|
|Sensor Size||13.2 x 8.8 mm||35.9 x 24.0 mm|
|Sensor Area||116.16 mm2||861.6 mm2|
|Sensor Diagonal||15.9 mm||43.2 mm|
|Sensor Resolution||20 Megapixels||36.2 Megapixels|
|Image Resolution||5472 x 3648 pixels||7360 x 4912 pixels|
|Pixel Pitch||2.41 μm||4.88 μm|
|Pixel Density||17.18 MP/cm2||4.20 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60p Video||1080/60i Video|
|ISO Setting||125 - 12,800 ISO||100 - 204,800 ISO|
|Image Processor||DIGIC 7||PRIME IV|
|DXO Sensor Quality (score)||65||96|
|DXO Color Depth (bits)||21.9||25.4|
|DXO Dynamic Range (EV)||12.5||14.6|
|DXO Low Light (ISO)||522||3280|
|Screen Specs||Canon G9 X Mark II||Pentax K-1|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%|
|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||Fixed screen||Fully flexible screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon G9 X Mark II||Pentax K-1|
|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||8.2 shutter flaps/s||4.4 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|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon G9 X Mark II||Pentax K-1|
|External Flash||no Hotshoe||Hotshoe|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|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||no Bluetooth|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Canon G9 X Mark II||Pentax K-1|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||235 shots per charge||760 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
98 x 58 x 31 mm
(3.9 x 2.3 x 1.2 in)
137 x 110 x 86 mm
(5.4 x 4.3 x 3.4 in)
|Camera Weight||206 g (7.3 oz)||1010 g (35.6 oz)|
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