Pentax Q vs Sony NEX-5
The Pentax Q and the Sony Alpha NEX-5 are two digital cameras that were officially introduced, respectively, in June 2011 and May 2010. Both the Pentax Q and the NEX-5 are mirrorless interchangeable lens cameras that are based on a 1/2.3-inch (Pentax Q) and an APS-C (NEX-5) sensor. The Pentax has a resolution of 12 megapixels, whereas the Sony provides 14 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Pentax Q||Sony NEX-5|
|Mirrorless system camera||Mirrorless system camera|
|Pentax Q mount lenses||Sony E mount lenses|
|12 MP, 1/2.3" Sensor||14 MP, APS-C Sensor|
|1080/30p Video||1080/60i Video|
|ISO 125-6,400||ISO 200-12,800|
|Viewfinder optional||Viewfinder optional|
|3.0 LCD, 460k dots||3.0 LCD, 920k dots|
|Fixed screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|1.5 shutter flaps per second||7 shutter flaps per second|
|In-body stabilization||Lens stabilization only|
|230 shots per battery charge||330 shots per battery charge|
|98 x 57 x 31 mm, 180 g||111 x 59 x 38 mm, 287 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax Q and the Sony Alpha NEX-5? 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 Pentax Q and the Sony NEX-5 is provided in the side-by-side display below. 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 measures are rounded to the nearest millimeter.
The Pentax Q can be obtained in two different colors (black, white), while the NEX-5 is also available in two color-versions, but different ones (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony NEX-5 is notably larger (17 percent) than the Pentax Q. Moreover, the NEX-5 is substantially heavier (59 percent) than the Pentax Q. In this context, it is worth noting that neither the Pentax Q nor the NEX-5 are weather-sealed.
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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Pentax Q||3.9 in||2.2 in||1.2 in||6.3 oz||230||n||Jun 2011||649|
|Sony NEX-5||4.4 in||2.3 in||1.5 in||10.1 oz||330||n||May 2010||699|
|Fujifilm X10||4.6 in||2.8 in||2.2 in||12.3 oz||270||n||Sep 2011||599|
|Olympus XZ-2||4.4 in||2.6 in||1.9 in||12.2 oz||340||n||Sep 2012||599|
|Olympus E-P3||4.8 in||2.7 in||1.3 in||13.0 oz||330||n||Jun 2011||799|
|Olympus E-PL2||4.5 in||2.8 in||1.7 in||12.8 oz||280||n||Jan 2011||599|
|Olympus E-PL3||4.3 in||2.5 in||1.5 in||11.0 oz||300||n||Jun 2011||599|
|Olympus E-PL1||4.5 in||2.8 in||1.7 in||11.8 oz||290||n||Feb 2010||599|
|Olympus E-620||5.1 in||3.7 in||2.4 in||18.4 oz||500||n||Feb 2009||699|
|Panasonic GF3||4.3 in||2.6 in||1.3 in||9.3 oz||300||n||Jun 2011||549|
|Panasonic G2||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599|
|Panasonic GF2||4.4 in||2.7 in||1.3 in||10.9 oz||300||n||Nov 2010||549|
|Sony NEX-5R||4.4 in||2.3 in||1.5 in||9.7 oz||330||n||Aug 2012||749|
|Sony NEX-F3||4.6 in||2.6 in||1.7 in||11.1 oz||470||n||May 2012||599|
|Sony NEX-5N||4.4 in||2.3 in||1.5 in||9.5 oz||460||n||Aug 2011||699|
|Sony NEX-C3||4.3 in||2.4 in||1.3 in||7.9 oz||400||n||Jun 2011||599|
|Sony NEX-3||4.6 in||2.4 in||1.3 in||10.5 oz||330||n||May 2010||599|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The Pentax Q was somewhat cheaper (by 7 percent) than the NEX-5 at launch, but both cameras fall into the same price category. 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.
The size of the sensor inside a digital camera is one of the key determinants 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 Pentax Q features a 1/2.3-inch sensor and the Sony NEX-5 an APS-C sensor. The sensor area in the NEX-5 is 1204 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.5. The sensor in the Pentax Q has a native 4:3 aspect ratio, while the one in the NEX-5 offers a 3:2 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 14MP, the NEX-5 offers a higher resolution than the Pentax Q (12MP), but the NEX-5 nevertheless has larger individual pixels (pixel pitch of 5.11μm versus 1.53μm for the Pentax Q) due to its larger sensor. However, the Pentax Q is a somewhat more recent model (by 1 year and 1 month) than the NEX-5, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony NEX-5 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the NEX-5 for good quality output (200 dots per inch) amounts to 23 x 15.3 inches or 58.3 x 38.8 cm, for very good quality (250 dpi) 18.4 x 12.2 inches or 46.7 x 31 cm, and for excellent quality (300 dpi) 15.3 x 10.2 inches or 38.9 x 25.9 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 Pentax Q has a native sensitivity range from ISO 125 to ISO 6400. The corresponding ISO settings for the Sony Alpha NEX-5 are ISO 200 to ISO 12800 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the NEX-5 offers substantially better image quality than the Pentax Q (overall score 22 points higher). The advantage is based on 2 bits higher color depth, 1.1 EV in additional dynamic range, and 2.1 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Olympus E-P3||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51|
|Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|Panasonic GF3||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.0||458||49|
|Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the NEX-5 provides a faster frame rate than the Pentax Q. It can shoot movie footage at 1080/60i, while the Pentax is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. The Pentax Q and the NEX-5 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. However, optional viewfinders – the O-VF1 for the Pentax Q and the FDA-SV1 for the NEX-5 – are available as accessories. The following table reports on some other key feature differences and similarities of the Pentax Q, the Sony NEX-5, and comparable cameras.
One difference between the cameras concerns the presence of an on-board flash. The Pentax Q has one, while the NEX-5 does not. While the built-in flash of the Pentax Q is not very powerful, it can at times be useful as a fill-in light.The NEX-5 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the Pentax Q does not have a selfie-screen.
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 Pentax Q writes its imaging data to SDXC cards, while the NEX-5 uses SDXC or Memory Stick PRO Duo 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 Pentax Q and Sony Alpha NEX-5 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
Both the Pentax Q and the NEX-5 have been discontinued, but can regularly be found used on eBay. The NEX-5 was replaced by the Sony NEX-5N, 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 Pentax and Sony websites.
So what is the bottom line? Is the Pentax Q better than the Sony NEX-5 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Pentax Q:
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (98x57mm vs 111x59mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 107g or 37 percent) and hence easier to carry around.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More modern: Is somewhat more recent (announced 1 year and 1 month after the NEX-5).
Advantages of the Sony Alpha NEX-5:
- More detail: Has more megapixels (14 vs 12MP), which boosts linear resolution by 10%.
- Better image quality: Scores substantially higher (22 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.1 stops ISO advantage).
- Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
- More detailed LCD: Has a higher resolution rear screen (920k vs 460k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (7 vs 1.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (330 versus 230) out of a single battery charge.
- More heavily discounted: Has been on the market for longer (launched in May 2010).
If the count of individual advantages (bullet points above) is taken as a guide, the NEX-5 is the clear winner of the contest (13 : 6 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 Pentax Q and the Sony NEX-5 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 Pentax Q or the NEX-5 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 hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Pentax Q||..||..||4/5||3.5/5||3.5/5||Jun 2011||649|
|Sony NEX-5||+ +||71/100||4.5/5||4/5||4/5||May 2010||699|
|Fujifilm X10||..||76/100||4/5||3.5/5||4.5/5||Sep 2011||599|
|Olympus XZ-2||+||..||4.5/5||4/5||4.5/5||Sep 2012||599|
|Olympus E-P3||83/100||74/100||4.5/5||4.5/5||4.5/5||Jun 2011||799|
|Olympus E-PL2||83/100||71/100||4.5/5||4.5/5||4.5/5||Jan 2011||599|
|Olympus E-PL3||+ +||72/100||4.5/5||..||4/5||Jun 2011||599|
|Olympus E-PL1||86/100||69/100||4/5||4.5/5||4.5/5||Feb 2010||599|
|Olympus E-620||88/100||72/100||4.5/5||o||5/5||Feb 2009||699|
|Panasonic GF3||82/100||71/100||4.5/5||4.5/5||4/5||Jun 2011||549|
|Panasonic G2||..||72/100||4/5||4/5||4.5/5||Mar 2010||599|
|Panasonic GF2||82/100||70/100||4.5/5||4.5/5||4.5/5||Nov 2010||549|
|Sony NEX-5R||..||..||4.5/5||..||4.5/5||Aug 2012||749|
|Sony NEX-F3||..||74/100||4.5/5||4.5/5||4.5/5||May 2012||599|
|Sony NEX-5N||+ +||79/100||4.5/5||5/5||4.5/5||Aug 2011||699|
|Sony NEX-C3||+ +||74/100||4.5/5||4.5/5||4/5||Jun 2011||599|
|Sony NEX-3||..||70/100||4.5/5||5/5||4/5||May 2010||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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
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Specifications: Pentax Q vs Sony NEX-5
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||Pentax Q||Sony NEX-5|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Pentax Q mount lenses||Sony E mount lenses|
|Launch Date||June 2011||May 2010|
|Launch Price||USD 649||USD 699|
|Sensor Specs||Pentax Q||Sony NEX-5|
|Sensor Format||1/2.3" Sensor||APS-C Sensor|
|Sensor Size||6.17 x 4.55 mm||23.4 x 15.6 mm|
|Sensor Area||28.0735 mm2||365.04 mm2|
|Sensor Diagonal||7.7 mm||28.1 mm|
|Sensor Resolution||12 Megapixels||14 Megapixels|
|Image Resolution||4000 x 3000 pixels||4592 x 3056 pixels|
|Pixel Pitch||1.53 μm||5.11 μm|
|Pixel Density||42.74 MP/cm2||3.84 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/60i Video|
|ISO Setting||125 - 6,400 ISO||200 - 12,800 ISO|
|DXO Sensor Quality (score)||47||69|
|DXO Color Depth (bits)||20.2||22.2|
|DXO Dynamic Range (EV)||11.1||12.2|
|DXO Low Light (ISO)||189||796|
|Screen Specs||Pentax Q||Sony NEX-5|
|Viewfinder Type||Viewfinder optional||Viewfinder optional|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||460k dots||920k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Pentax Q||Sony NEX-5|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/2000s||1/4000s|
|Continuous Shooting||1.5 shutter flaps/s||7 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Pentax Q||Sony NEX-5|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Pentax Q||Sony NEX-5|
|Battery Life (CIPA)||230 shots per charge||330 shots per charge|
98 x 57 x 31 mm
(3.9 x 2.2 x 1.2 in)
111 x 59 x 38 mm
(4.4 x 2.3 x 1.5 in)
|Camera Weight||180 g (6.3 oz)||287 g (10.1 oz)|
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