Canon G15 vs Pentax Q
The Canon PowerShot G15 and the Pentax Q are two digital cameras that were announced, respectively, in September 2012 and June 2011. The G15 is a fixed lens compact, while the Pentax Q is a mirrorless interchangeable lens camera. The cameras are based on a 1/1.7-inch (G15) and a 1/2.3-inch (Pentax Q) sensor. Both cameras offer a resolution of 12 megapixels.
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 G15 and the Pentax Q? 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.
An illustration of the physical size and weight of the Canon G15 and the Pentax Q is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.
The Pentax Q can be obtained in two different colors (black, white), while the G15 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 Q is considerably smaller (31 percent) than the Canon G15. In this context, it is worth noting that neither the G15 nor the Pentax Q are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G15 has a lens built in, whereas the Pentax Q is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
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 G15||107 mm||76 mm||40 mm||352 g||350||n||Sep 2012||499|
|2.||Pentax Q||98 mm||57 mm||31 mm||180 g||230||n||Jun 2011||649|
|3.||Canon SX60||128 mm||93 mm||114 mm||650 g||340||n||Sep 2014||549|
|4.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549|
|5.||Canon S120||100 mm||59 mm||29 mm||217 g||230||n||Aug 2013||449|
|6.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429|
|7.||Canon G12||112 mm||76 mm||48 mm||401 g||370||n||Sep 2010||499|
|8.||Fujifilm X20||117 mm||70 mm||57 mm||353 g||270||n||Jan 2013||599|
|9.||Fujifilm X10||117 mm||70 mm||57 mm||350 g||270||n||Sep 2011||599|
|10.||Nikon P7800||119 mm||78 mm||50 mm||399 g||350||n||Sep 2013||549|
|11.||Olympus XZ-2||113 mm||65 mm||48 mm||346 g||340||n||Sep 2012||599|
|12.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|13.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|14.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|15.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|16.||Panasonic LX7||111 mm||68 mm||46 mm||298 g||330||n||Jul 2012||499|
|17.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499|
|Notes: 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 G15 was launched at a lower price than the Pentax Q, 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. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G15 features a 1/1.7-inch sensor and the Pentax Q a 1/2.3-inch sensor. The sensor area in the Pentax Q is 35 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 5.6. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
Even though the G15 has a larger sensor, both cameras offer the same resolution of 12 megapixels. This implies that the G15 has a lower pixel density and larger individual pixels (with a pixel pitch of 1.89μm versus 1.53μm for the Pentax Q), which gives it a potential advantage in terms of light gathering capacity. In addition, the G15 is a somewhat more recent model (by 1 year and 2 months) than the Pentax Q, and its sensor might have benefitted from technological advances during this time.
The Canon PowerShot G15 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Pentax Q are ISO 125 to ISO 6400 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|12.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|13.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|14.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|15.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
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 Pentax Q provides a faster frame rate than the G15. It can shoot movie footage at 1080/30p, while the Canon is limited to 1080/24p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the G15 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the Pentax Q relies on live view and the rear LCD for framing. That said, the Pentax Q can be equipped with an optional viewfinder – the O-VF1. The following table reports on some other key feature differences and similarities of the Canon G15, the Pentax Q, and comparable cameras.
The Pentax Q 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 G15 and the Pentax Q write their files to SDXC cards.
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 G15 and Pentax Q and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
Both the G15 and the Pentax Q have been discontinued, but can regularly be found used on eBay. The Pentax Q was replaced by the Pentax Q10, while the G15 was followed by the Canon G16. 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 G15 or the Pentax Q – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon PowerShot G15:
- Easier framing: Has an optical viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (922k vs 460k dots).
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (2.1 vs 1.5 flaps/sec) to capture the decisive moment.
- Ready to shoot: Has a lens built-in, whereas the Pentax Q requires a separate lens.
- Longer lasting: Can take more shots (350 versus 230) on a single battery charge.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Is somewhat more recent (announced 1 year and 2 months after the Pentax Q).
Reasons to prefer the Pentax Q:
- Better video: Provides higher movie framerates (1080/30p versus 1080/24p).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- More compact: Is smaller (98x57mm vs 107x76mm) and will fit more readily into a bag.
- More heavily discounted: Has been on the market for longer (launched in June 2011).
If the count of relative strengths (bullet points above) is taken as a measure, the G15 emerges as the winner of the contest (8 : 5 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 G15 and the Pentax Q place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the G15 or the Pentax Q 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], 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 G15||4/5||+||76/100||4.5/5||4.5/5||Sep 2012||499|
|2.||Pentax Q||3/5||..||..||4/5||3.5/5||Jun 2011||649|
|3.||Canon SX60||3/5||+ +||75/100||4/5||4.5/5||Sep 2014||549|
|4.||Canon G16||4/5||+||..||4.5/5||4.5/5||Aug 2013||549|
|5.||Canon S120||..||+ +||..||4.5/5||4.5/5||Aug 2013||449|
|6.||Canon SX50||3/5||+ +||72/100||4.5/5||4.5/5||Sep 2012||429|
|7.||Canon G12||4/5||+||73/100||4.5/5||4.5/5||Sep 2010||499|
|8.||Fujifilm X20||4/5||+ +||77/100||4.5/5||5/5||Jan 2013||599|
|9.||Fujifilm X10||..||..||76/100||4/5||4.5/5||Sep 2011||599|
|10.||Nikon P7800||3/5||..||..||4/5||4.5/5||Sep 2013||549|
|11.||Olympus XZ-2||4/5||+||..||4.5/5||4.5/5||Sep 2012||599|
|12.||Olympus E-PL2||3/5||83/100||71/100||4.5/5||4.5/5||Jan 2011||599|
|13.||Olympus E-PL3||3/5||+ +||72/100||4.5/5||4/5||Jun 2011||599|
|14.||Olympus E-PL1||..||86/100||69/100||4/5||4.5/5||Feb 2010||599|
|15.||Olympus E-620||3/5||88/100||72/100||4.5/5||5/5||Feb 2009||699|
|16.||Panasonic LX7||3/5||+ +||75/100||4/5||4.5/5||Jul 2012||499|
|17.||Panasonic FZ150||3/5||+ +||76/100||4/5||4.5/5||Aug 2011||499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
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Specifications: Canon G15 vs Pentax Q
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 G15||Pentax Q|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||28-140mm f/1.8-2.8||Pentax Q mount lenses|
|Launch Date||September 2012||June 2011|
|Launch Price||USD 499||USD 649|
|Sensor Specs||Canon G15||Pentax Q|
|Sensor Format||1/1.7" Sensor||1/2.3" Sensor|
|Sensor Size||7.6 x 5.7 mm||6.17 x 4.55 mm|
|Sensor Area||43.32 mm2||28.0735 mm2|
|Sensor Diagonal||9.5 mm||7.7 mm|
|Sensor Resolution||12 Megapixels||12 Megapixels|
|Image Resolution||4000 x 3000 pixels||4000 x 3000 pixels|
|Pixel Pitch||1.89 μm||1.53 μm|
|Pixel Density||27.70 MP/cm2||42.74 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/24p Video||1080/30p Video|
|ISO Setting||80 - 12,800 ISO||125 - 6,400 ISO|
|DXO Sensor Quality (score)||46||47|
|DXO Color Depth (bits)||19.9||20.2|
|DXO Dynamic Range (EV)||11.5||11.1|
|DXO Low Light (ISO)||165||189|
|Screen Specs||Canon G15||Pentax Q|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||80%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||922k dots||460k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon G15||Pentax Q|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||2.1 shutter flaps/s||1.5 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens-based stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon G15||Pentax Q|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon G15||Pentax Q|
|Battery Life (CIPA)||350 shots per charge||230 shots per charge|
107 x 76 x 40 mm
(4.2 x 3.0 x 1.6 in)
98 x 57 x 31 mm
(3.9 x 2.2 x 1.2 in)
|Camera Weight||352 g (12.4 oz)||180 g (6.3 oz)|
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