Canon 50D vs Pentax Q
The Canon EOS 50D and the Pentax Q are two digital cameras that were revealed to the public, respectively, in August 2008 and June 2011. The 50D is a DSLR, while the Pentax Q is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (50D) and a 1/2.3-inch (Pentax Q) sensor. The Canon has a resolution of 15.1 megapixels, whereas the Pentax provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 50D 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.
The side-by-side display below illustrates the physical size and weight of the Canon 50D and the Pentax Q. 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 dimensions are rounded to the nearest millimeter.
The Pentax Q can be obtained in two different colors (black, white), while the 50D 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 (65 percent) than the Canon 50D. Moreover, the Pentax Q is substantially lighter (78 percent) than the 50D. It is worth mentioning in this context that the 50D is splash and dust resistant, while the Pentax Q does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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.
|1.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299|
|2.||Pentax Q||98 mm||57 mm||31 mm||180 g||230||n||Jun 2011||649|
|3.||Canon 90D||141 mm||105 mm||77 mm||701 g||1300||Y||Aug 2019||1,199|
|4.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199|
|5.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|6.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|7.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399|
|8.||Canon 7D||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699|
|9.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|10.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|11.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399|
|12.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499|
|13.||Olympus XZ-2||113 mm||65 mm||48 mm||346 g||340||n||Sep 2012||599|
|14.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|15.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|16.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|17.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|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 Pentax Q was launched at a markedly lower price (by 50 percent) than the 50D, which puts it into a different market segment. 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 50D features an APS-C sensor and the Pentax Q a 1/2.3-inch sensor. The sensor area in the Pentax Q is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 5.6. The sensor in the 50D has a native 3:2 aspect ratio, while the one in the Pentax Q offers a 4:3 aspect.
With 15.1MP, the 50D offers a higher resolution than the Pentax Q (12MP), but the 50D nevertheless has larger individual pixels (pixel pitch of 4.69μm versus 1.53μm for the Pentax Q) due to its larger sensor. However, the Pentax Q is a much more recent model (by 2 years and 9 months) than the 50D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The resolution advantage of the Canon 50D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 50D for good quality output (200 dots per inch) amounts to 23.8 x 15.8 inches or 60.4 x 40.2 cm, for very good quality (250 dpi) 19 x 12.7 inches or 48.3 x 32.2 cm, and for excellent quality (300 dpi) 15.8 x 10.6 inches or 40.2 x 26.8 cm. The corresponding values for the Pentax Q are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.
The Canon EOS 50D has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-12800. The corresponding ISO settings for the Pentax Q are ISO 125 to ISO 6400 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). Of the two cameras under review, the 50D provides substantially higher image quality than the Pentax Q, with an overall score that is 16 points higher. This advantage is based on 1.6 bits higher color depth, 0.3 EV in additional dynamic range, and 1.9 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 |
|5.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|14.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|15.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|16.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|17.||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 can also record movies. The Pentax Q indeed provides for movie recording, while the 50D does not. The highest resolution format that the Pentax Q can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 50D 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 adjacent table lists some of the other core features of the Canon 50D and Pentax Q along with similar information for a selection of comparators.
|5.||Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n|
One feature that is present on the 50D, but is missing on the Pentax Q is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
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.
The 50D writes its imaging data to Compact Flash cards, while the Pentax Q uses 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 EOS 50D and Pentax Q and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|5.||Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-|
Studio photographers will appreciate that the Canon 50D (unlike the Pentax Q) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 50D and the Pentax Q have been discontinued, but can regularly be found used on eBay. The 50D was replaced by the Canon 60D, while the Pentax Q was followed by the Pentax Q10. 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 what is the bottom line? Is the Canon 50D better than the Pentax Q or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS 50D:
- More detail: Offers more megapixels (15.1 vs 12MP) with a 14% higher linear resolution.
- Better image quality: Scores substantially higher (16 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.6 bits more color depth).
- Better low-light sensitivity: Requires less light for good images (1.9 stops ISO advantage).
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (920k vs 460k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (6.3 vs 1.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (800 versus 230) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in August 2008).
Advantages of the Pentax Q:
- Broader imaging potential: Can capture not only stills but also 1080/30p video.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (98x57mm vs 146x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 642g or 78 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More modern: Reflects 2 years and 9 months of technical progress since the 50D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 50D is the clear winner of the match-up (13 : 8 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 50D and the Pentax Q place the cameras among the top in their class? Find out in the latest Best DSLR 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 50D or the Pentax Q perform in practice. 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.
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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 50D||..||+ +||+ +||4.5/5||4.5/5||Aug 2008||1,299|
|2.||Pentax Q||3/5||..||..||4/5||3.5/5||Jun 2011||649|
|3.||Canon 90D||4/5||+||85/100||4.5/5||4.5/5||Aug 2019||1,199|
|4.||Canon 80D||4/5||+ +||84/100||4.5/5||4.5/5||Feb 2016||1,199|
|5.||Canon 7D II||4.5/5||+||84/100||4/5||4.5/5||Sep 2014||1,799|
|6.||Canon 70D||5/5||+ +||83/100||4.5/5||5/5||Jul 2013||1,199|
|7.||Canon 60D||5/5||+||79/100||4/5||4.5/5||Aug 2010||1,399|
|8.||Canon 7D||5/5||+ +||84/100||4.5/5||4.5/5||Sep 2009||1,699|
|9.||Canon T1i||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|10.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|11.||Canon 30D||..||+ +||+ +||o||..||Feb 2006||1,399|
|12.||Canon 20D||..||..||+ +||..||..||Aug 2004||1,499|
|13.||Olympus XZ-2||4/5||+||..||4.5/5||4.5/5||Sep 2012||599|
|14.||Olympus E-PL2||3/5||83/100||71/100||4.5/5||4.5/5||Jan 2011||599|
|15.||Olympus E-PL3||3/5||+ +||72/100||4.5/5||4/5||Jun 2011||599|
|16.||Olympus E-PL1||..||86/100||69/100||4/5||4.5/5||Feb 2010||599|
|17.||Olympus E-620||3/5||88/100||72/100||4.5/5||5/5||Feb 2009||699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon 50D 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 50D||Pentax Q|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Pentax Q mount lenses|
|Launch Date||August 2008||June 2011|
|Launch Price||USD 1,299||USD 649|
|Sensor Specs||Canon 50D||Pentax Q|
|Sensor Format||APS-C Sensor||1/2.3" Sensor|
|Sensor Size||22.3 x 14.9 mm||6.17 x 4.55 mm|
|Sensor Area||332.27 mm2||28.0735 mm2|
|Sensor Diagonal||26.8 mm||7.7 mm|
|Sensor Resolution||15.1 Megapixels||12 Megapixels|
|Image Resolution||4752 x 3168 pixels||4000 x 3000 pixels|
|Pixel Pitch||4.69 μm||1.53 μm|
|Pixel Density||4.53 MP/cm2||42.74 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/30p Video|
|ISO Setting||100 - 3,200 ISO||125 - 6,400 ISO|
|ISO Boost||100 - 12,800 ISO||no Enhancement|
|DXO Sensor Quality (score)||63||47|
|DXO Color Depth (bits)||21.8||20.2|
|DXO Dynamic Range (EV)||11.4||11.1|
|DXO Low Light (ISO)||696||189|
|Screen Specs||Canon 50D||Pentax Q|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||920k dots||460k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 50D||Pentax Q|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||6.3 shutter flaps/s||1.5 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 50D||Pentax Q|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 50D||Pentax Q|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||800 shots per charge||230 shots per charge|
146 x 108 x 74 mm
(5.7 x 4.3 x 2.9 in)
98 x 57 x 31 mm
(3.9 x 2.2 x 1.2 in)
|Camera Weight||822 g (29.0 oz)||180 g (6.3 oz)|
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