Panasonic G1 vs Pentax Q
The Panasonic Lumix DMC-G1 and the Pentax Q are two digital cameras that were announced, respectively, in September 2008 and June 2011. Both the G1 and the Pentax Q are mirrorless interchangeable lens cameras that are based on a Four Thirds (G1) 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 Panasonic Lumix DMC-G1 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 physical size and weight of the Panasonic G1 and the Pentax Q are illustrated 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 size dimensions are rounded to the nearest millimeter.
The Pentax Q can be obtained in two different colors (black, white), while the G1 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 (46 percent) than the Panasonic G1. Moreover, the Pentax Q is substantially lighter (50 percent) than the G1. In this context, it is worth noting that neither the G1 nor the Pentax Q 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 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.||Panasonic G1||124 mm||84 mm||45 mm||360 g||410||n||Sep 2008||599|
|2.||Pentax Q||98 mm||57 mm||31 mm||180 g||230||n||Jun 2011||649|
|3.||Olympus XZ-2||113 mm||65 mm||48 mm||346 g||340||n||Sep 2012||599|
|4.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599|
|5.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599|
|6.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599|
|7.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699|
|8.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699|
|9.||Panasonic GF6||111 mm||65 mm||38 mm||323 g||340||n||Apr 2013||499|
|10.||Panasonic GF5||108 mm||67 mm||37 mm||267 g||360||n||Apr 2012||499|
|11.||Panasonic GF3||108 mm||67 mm||32 mm||264 g||300||n||Jun 2011||549|
|12.||Panasonic G10||124 mm||84 mm||74 mm||388 g||380||n||Mar 2010||499|
|13.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|14.||Panasonic GF2||113 mm||68 mm||33 mm||310 g||300||n||Nov 2010||549|
|15.||Panasonic GF1||119 mm||71 mm||36 mm||385 g||380||n||Sep 2009||749|
|16.||Panasonic GH1||124 mm||90 mm||45 mm||385 g||300||n||Mar 2009||899|
|17.||Panasonic L10||135 mm||96 mm||78 mm||556 g||450||n||Aug 2007||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G1 was somewhat cheaper (by 8 percent) than the Pentax Q at launch, but both cameras fall into the same price category. 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 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 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 Panasonic G1 features a Four Thirds sensor and the Pentax Q a 1/2.3-inch sensor. The sensor area in the Pentax Q is 88 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 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 G1 has a larger sensor, both cameras offer the same resolution of 12 megapixels. This implies that the G1 has a lower pixel density and larger individual pixels (with a pixel pitch of 4.33μm versus 1.53μm for the Pentax Q), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the Pentax Q is much more recent (by 2 years and 9 months) than the G1, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The Panasonic Lumix DMC-G1 has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Pentax Q are ISO 125 to ISO 6400 (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 review, the G1 has a notably higher overall DXO score than the Pentax Q (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.9 bits higher color depth, 0.8 EV of lower dynamic range, and 1.3 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.||Panasonic G1||Four Thirds||12.0||4000||3000||none||21.1||10.3||463||53|
|4.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|5.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|6.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|7.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|8.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|9.||Panasonic GF6||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54|
|10.||Panasonic GF5||Four Thirds||12.0||4000||3000||1080/60i||21.4||11.6||618||61|
|11.||Panasonic GF3||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.0||458||49|
|12.||Panasonic G10||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52|
|13.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|14.||Panasonic GF2||Four Thirds||12.0||4000||3000||1080/60i||21.2||10.3||506||54|
|15.||Panasonic GF1||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54|
|16.||Panasonic GH1||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
|17.||Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The Pentax Q indeed provides for movie recording, while the G1 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 G1 has an electronic viewfinder (1440k dots), which can be very helpful 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 table below summarizes some of the other core capabilities of the Panasonic G1 and Pentax Q in connection with corresponding information for a sample of similar cameras.
One feature that differentiates the Pentax Q and the G1 is in-body image stabilization (IBIS). The Pentax Q reduces the risk of handshake-induced blur with all attached lenses, while the G1 offers no blur reduction with lenses that themselves do not provide optical image stabilization.The G1 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 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 G1 writes its imaging data to SDHC 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 Panasonic Lumix DMC-G1 and Pentax Q and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
Both the G1 and the Pentax Q have been discontinued, but can regularly be found used on eBay. The G1 was replaced by the Panasonic G2, 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 Panasonic and Pentax websites.
So what is the bottom line? Which of the two cameras – the Panasonic G1 or the Pentax Q – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Panasonic Lumix DMC-G1:
- Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
- Better low-light sensitivity: Requires less light for good images (1.3 stops ISO advantage).
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- 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.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (3 vs 1.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (410 versus 230) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in September 2008).
Reasons to prefer the Pentax Q:
- More dynamic range: Captures a broader range of light and dark details (0.8 EV of extra DR).
- 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 124x84mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 180g or 50 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More modern: Reflects 2 years and 9 months of technical progress since the G1 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the G1 emerges as the winner of the contest (9 : 7 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Panasonic G1 and the Pentax Q 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G1 or the Pentax Q. 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.||Panasonic G1||..||+ +||70/100||4/5||4.5/5||Sep 2008||599|
|2.||Pentax Q||3/5||..||..||4/5||3.5/5||Jun 2011||649|
|3.||Olympus XZ-2||4/5||+||..||4.5/5||4.5/5||Sep 2012||599|
|4.||Olympus E-PL2||3/5||83/100||71/100||4.5/5||4.5/5||Jan 2011||599|
|5.||Olympus E-PL3||3/5||+ +||72/100||4.5/5||4/5||Jun 2011||599|
|6.||Olympus E-PL1||..||86/100||69/100||4/5||4.5/5||Feb 2010||599|
|7.||Olympus E-620||3/5||88/100||72/100||4.5/5||5/5||Feb 2009||699|
|8.||Olympus E-410||..||86/100||+ +||4/5||4.5/5||Mar 2007||699|
|9.||Panasonic GF6||..||+ +||..||4.5/5||4.5/5||Apr 2013||499|
|10.||Panasonic GF5||3/5||..||..||4.5/5||4.5/5||Apr 2012||499|
|11.||Panasonic GF3||3/5||82/100||71/100||4.5/5||4/5||Jun 2011||549|
|12.||Panasonic G10||3/5||..||70/100||4/5||4/5||Mar 2010||499|
|13.||Panasonic G2||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|14.||Panasonic GF2||3/5||82/100||70/100||4.5/5||4.5/5||Nov 2010||549|
|15.||Panasonic GF1||..||85/100||69/100||4.5/5||4.5/5||Sep 2009||749|
|16.||Panasonic GH1||..||+ +||72/100||4.5/5||4.5/5||Mar 2009||899|
|17.||Panasonic L10||..||85/100||+||3.5/5||4/5||Aug 2007||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted 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 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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Panasonic G1 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||Panasonic G1||Pentax Q|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Pentax Q mount lenses|
|Launch Date||September 2008||June 2011|
|Launch Price||USD 599||USD 649|
|Sensor Specs||Panasonic G1||Pentax Q|
|Sensor Format||Four Thirds Sensor||1/2.3" Sensor|
|Sensor Size||17.3 x 13.0 mm||6.17 x 4.55 mm|
|Sensor Area||224.9 mm2||28.0735 mm2|
|Sensor Diagonal||21.6 mm||7.7 mm|
|Sensor Resolution||12 Megapixels||12 Megapixels|
|Image Resolution||4000 x 3000 pixels||4000 x 3000 pixels|
|Pixel Pitch||4.33 μm||1.53 μm|
|Pixel Density||5.34 MP/cm2||42.74 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/30p Video|
|ISO Setting||100 - 1,600 ISO||125 - 6,400 ISO|
|ISO Boost||100 - 3,200 ISO||no Enhancement|
|DXO Sensor Quality (score)||53||47|
|DXO Color Depth (bits)||21.1||20.2|
|DXO Dynamic Range (EV)||10.3||11.1|
|DXO Low Light (ISO)||463||189|
|Screen Specs||Panasonic G1||Pentax Q|
|Viewfinder Type||Electronic viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||1440k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||460k dots||460k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Panasonic G1||Pentax Q|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Continuous Shooting||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||Built-in Flash||Built-in Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Panasonic G1||Pentax Q|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Panasonic G1||Pentax Q|
|Battery Life (CIPA)||410 shots per charge||230 shots per charge|
124 x 84 x 45 mm
(4.9 x 3.3 x 1.8 in)
98 x 57 x 31 mm
(3.9 x 2.2 x 1.2 in)
|Camera Weight||360 g (12.7 oz)||180 g (6.3 oz)|
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