Panasonic GM1 versus Olympus E-M10
The Panasonic Lumix DMC-GM1 and the Olympus OM-D E-M10 are two digital cameras that were revealed to the public, respectively, in October 2013 and January 2014. Both the GM1 and the E-M10 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Panasonic has a resolution of 15.8 megapixel, whereas the Olympus provides 15.9 MP.
An illustration of the physical size and weight of the Panasonic GM1 and the Olympus E-M10 is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the GM1 – represents the basis for the calculations across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 is considerably larger (79 percent) than the Panasonic GM1. Moreover, the E-M10 is substantially heavier (94 percent) than the GM1. Cameras that are aimed at professionals or semi-pros tend to be a bit bulkier in order to give them the necessary environmental and shock resistance. In this context, it is worth noting that neither the GM1 nor the E-M10 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Micro Four Thirds Lens Catalog. Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Panasonic GM1 (⇒ rgt)||3.9 in||2.2 in||1.2 in||7.2 oz||230||no||2013||749||discont.||check|
|Olympus E-M10 (⇒ lft)||4.7 in||3.2 in||1.8 in||14.0 oz||320||no||2014||699||discont.||check|
|Canon G1 X Mark II (⇒ lft | rgt)||4.6 in||2.9 in||2.6 in||19.5 oz||240||no||2014||799||latest||check|
|Olympus E-M10 III (⇒ lft | rgt)||4.8 in||3.3 in||2.0 in||14.5 oz||330||no||2017||649||latest||check|
|Olympus E-M10 II (⇒ lft | rgt)||4.7 in||3.3 in||1.9 in||13.8 oz||320||no||2015||799||discont.||check|
|Olympus E-M5 II (⇒ lft | rgt)||4.9 in||3.3 in||1.8 in||16.5 oz||310||YES||2015||1,099||latest||check|
|Olympus E-M1 (⇒ lft | rgt)||5.1 in||3.7 in||2.5 in||17.5 oz||350||YES||2013||1,399||discont.||check|
|Olympus E-P5 (⇒ lft | rgt)||4.8 in||2.7 in||1.5 in||14.8 oz||330||no||2013||999||discont.||check|
|Panasonic GX85 (⇒ lft | rgt)||4.8 in||2.8 in||1.7 in||15.0 oz||290||no||2016||799||latest||check|
|Panasonic G7 (⇒ lft | rgt)||4.9 in||3.4 in||3.0 in||14.5 oz||350||no||2015||649||discont.||check|
|Panasonic FZ1000 (⇒ lft | rgt)||5.4 in||3.9 in||5.2 in||29.3 oz||360||no||2014||899||discont.||check|
|Panasonic GH4 (⇒ lft | rgt)||5.2 in||3.7 in||3.3 in||19.8 oz||500||YES||2014||1,499||discont.||check|
|Panasonic GM5 (⇒ lft | rgt)||3.9 in||2.4 in||1.4 in||7.4 oz||220||no||2014||749||discont.||check|
|Panasonic LX100 (⇒ lft | rgt)||4.5 in||2.6 in||2.2 in||13.9 oz||300||no||2014||899||latest||check|
|Panasonic G6 (⇒ lft | rgt)||4.8 in||3.3 in||2.8 in||13.8 oz||340||no||2013||599||discont.||check|
|Panasonic GX7 (⇒ lft | rgt)||4.8 in||2.8 in||2.2 in||14.2 oz||350||no||2013||999||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M10 was somewhat cheaper (by 7 percent) than the GM1 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 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. 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 tent to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
While the two cameras under review share the same sensor size, the E-M10 offers a higher resolution of 15.9 megapixel, compared with 15.8 MP of the GM1. This megapixel advantage translates into a 0 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M10 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.75μm versus 3.77μm for the GM1). However, it should be noted that the E-M10 is a somewhat more recent model (by 3 months) than the GM1, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels. Coming back sensor resolution, it should be mentioned that the E-M10 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
For most cameras, data on sensor performance has been reported by DXO Mark. 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 E-M10 has a markedly higher DXO score than the GM1 (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.5 bits higher color depth, 0.6 EV in additional dynamic range, and 0.4 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.
|Panasonic GM1 (⇒ rgt)||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|Olympus E-M10 (⇒ lft)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|Canon G1 X Mark II (⇒ lft | rgt)||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|Olympus E-M10 III (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|Olympus E-M10 II (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
|Olympus E-M5 II (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|Olympus E-M1 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|Olympus E-P5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72|
|Panasonic GX85 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71|
|Panasonic G7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-|
|Panasonic FZ1000 (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||22.1||11.7||517||64|
|Panasonic GH4 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|Panasonic GM5 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|Panasonic LX100 (⇒ lft | rgt)||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67|
|Panasonic G6 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GX7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||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 GM1 provides a higher frame rate than the E-M10. It can shoot video footage at 1080/60i, while the Olympus is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M10 has an electronic viewfinder (1440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GM1 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Panasonic GM1 and Olympus E-M10 along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Panasonic GM1 (⇒ rgt)||no||no||3.0||1036||fixed||YES||500||5.0||4||no|
|Olympus E-M10 (⇒ lft)||1440||no||3.0||1037||tilting||YES||4000||8.0||5.8||YES|
|Canon G1 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||5.2||6.8||no|
|Olympus E-M10 III (⇒ lft | rgt)||2360||no||3.0||1040||tilting||YES||4000||8.6||5.8||YES|
|Olympus E-M10 II (⇒ lft | rgt)||2360||no||3.0||1040||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-M5 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||10.0||no||YES|
|Olympus E-M1 (⇒ lft | rgt)||2360||no||3.0||1037||tilting||YES||8000||10.0||no||YES|
|Olympus E-P5 (⇒ lft | rgt)||no||no||3.0||1037||tilting||YES||8000||9.0||7||YES|
|Panasonic GX85 (⇒ lft | rgt)||2765||no||3.0||1040||tilting||YES||4000||8.0||6||YES|
|Panasonic G7 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||7.0||9.3||no|
|Panasonic FZ1000 (⇒ lft | rgt)||2359||no||3.0||921||swivel||no||4000||12.0||13.5||no|
|Panasonic GH4 (⇒ lft | rgt)||2359||no||3.0||1036||swivel||YES||8000||12.0||17||no|
|Panasonic GM5 (⇒ lft | rgt)||1166||no||3.0||921||fixed||YES||500||5.8||no||no|
|Panasonic LX100 (⇒ lft | rgt)||2764||no||3.0||921||fixed||no||4000||11.0||7||no|
|Panasonic G6 (⇒ lft | rgt)||1440||no||3.0||1036||swivel||YES||4000||7.0||10.5||no|
|Panasonic GX7 (⇒ lft | rgt)||2760||no||3.0||1040||tilting||YES||8000||5.0||7||YES|
Both the GM1 and the E-M10 have been discontinued, but can regularly be found used on ebay. The GM1 was replaced by the Panasonic GM5, while the E-M10 was followed by the Olympus E-M10 II.
So how do things add up? Which of the two cameras – the Panasonic GM1 or the Olympus E-M10 – has the upper hand? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Panasonic Lumix DMC-GM1:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher movie framerates (1080/60i vs 1080/30p).
- More compact: Is smaller (99x55mm vs 119x82mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 192g or 48 percent) and hence easier to carry around.
- More heavily discounted: Has been on the market for longer (launched in October 2013).
Advantages of the Olympus OM-D E-M10:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
- More dynamic range: Captures a broader range of light and dark details (0.6 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.4 stops ISO advantage).
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has a higher mechanical shutter speed (4000/sec vs 500/sec) to freeze action.
- Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (320 versus 230) out of a single battery charge.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More modern: Was introduced somewhat (3 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the E-M10 is the clear winner of the contest (11 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points.
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 handling experience and imaging performance when actually working with the GM1 or the E-M10. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is why hands-on reviews by experts are important. The table below summarizes the assessments of some of the best known camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Panasonic GM1 (⇒ rgt)||Rec||78/100 Gold||5/5||4.5/5||4.5/5||2013||749||discont.||check|
|Olympus E-M10 (⇒ lft)||-||80/100 Gold||5/5||4.5/5||5/5||2014||699||discont.||check|
|Canon G1 X Mark II (⇒ lft | rgt)||Rec||77/100 Silver||4/5||4/5||4.5/5||2014||799||latest||check|
|Olympus E-M10 III (⇒ lft | rgt)||Rec||80/100||4.5/5||..||4.5/5||2017||649||latest||check|
|Olympus E-M10 II (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||5/5||5/5||2015||799||discont.||check|
|Olympus E-M5 II (⇒ lft | rgt)||HiRec||81/100 Silver||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Olympus E-M1 (⇒ lft | rgt)||HiRec||84/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,399||discont.||check|
|Olympus E-P5 (⇒ lft | rgt)||HiRec||78/100 Silver||4.5/5||4.5/5||5/5||2013||999||discont.||check|
|Panasonic GX85 (⇒ lft | rgt)||HiRec||82/100 Silver||5/5||4.5/5||5/5||2016||799||latest||check|
|Panasonic G7 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4.5/5||4.5/5||2015||649||discont.||check|
|Panasonic FZ1000 (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4.5/5||2014||899||discont.||check|
|Panasonic GH4 (⇒ lft | rgt)||HiRec||85/100 Gold||5/5||5/5||5/5||2014||1,499||discont.||check|
|Panasonic GM5 (⇒ lft | rgt)||Rec||77/100 Silver||5/5||5/5||4.5/5||2014||749||discont.||check|
|Panasonic LX100 (⇒ lft | rgt)||HiRec||85/100 Gold||5/5||4/5||5/5||2014||899||latest||check|
|Panasonic G6 (⇒ lft | rgt)||HiRec||-||5/5||-||4.5/5||2013||599||discont.||check|
|Panasonic GX7 (⇒ lft | rgt)||Rec||79/100 Silver||5/5||4.5/5||5/5||2013||999||discont.||check|
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. 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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
If you would like to see a different side-by-side camera review, 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. If you do not see the camera that you are looking for, please contact me, and I will try to locate and add the respective data to the application.
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