Panasonic GH2 vs GM1
The Panasonic Lumix DMC-GH2 and the Panasonic Lumix DMC-GM1 are two digital cameras that were officially introduced, respectively, in September 2010 and October 2013. Both the GH2 and the GM1 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The GH2 has a resolution of 15.9 megapixels, whereas the GM1 provides 15.8 MP. Read on to find out how these two cameras compare with respect to their body size, their sensors, their features, their input-output connections, and their reception by expert reviewers.
|Panasonic GH2||Panasonic GM1|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Micro Four Thirds lenses|
|15.9 MP, Four Thirds Sensor||15.8 MP, Four Thirds Sensor|
|1080/60i Video||1080/60i Video|
|ISO 160-12800||ISO 200-25600|
|Electronic viewfinder (1534k dots)||No viewfinder, LCD framing|
|3.0" LCD, 460k dots||3.0" LCD, 1036k dots|
|Swivel screen (not touch-sensitive)||Fixed touchscreen|
|3 shutter flaps per second||5 shutter flaps per second|
|330 shots per battery charge||230 shots per battery charge|
|124 x 90 x 76 mm, 442 g||99 x 55 x 30 mm, 204 g|
Body comparison: Panasonic GH2 vs GM1
An illustration of the physical size and weight of the Panasonic GH2 and the Panasonic GM1 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 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 – the GH2 – represents the basis or 100 percent 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 Panasonic GM1 is considerably smaller (51 percent) than the Panasonic GH2. Moreover, the GM1 is substantially lighter (54 percent) than the GH2. In this context, it is worth noting that neither the GH2 nor the GM1 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 compare the optics available 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|Panasonic GH2»||4.9 in||3.5 in||3.0 in||15.6 oz||330||n||Sep 2010||1,499||-||Panasonic GH2|
|Panasonic GM1«||3.9 in||2.2 in||1.2 in||7.2 oz||230||n||Oct 2013||749||-||Panasonic GM1|
|Panasonic GX85« »||4.8 in||2.8 in||1.7 in||15.0 oz||290||n||Apr 2016||799||Panasonic GX85|
|Panasonic G7« »||4.9 in||3.4 in||3.0 in||14.5 oz||350||n||May 2015||649||-||Panasonic G7|
|Panasonic GM5« »||3.9 in||2.4 in||1.4 in||7.4 oz||220||n||Sep 2014||749||-||Panasonic GM5|
|Panasonic LX100« »||4.5 in||2.6 in||2.2 in||13.9 oz||300||n||Sep 2014||899||Panasonic LX100|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||-||Panasonic G6|
|Panasonic GX7« »||4.8 in||2.8 in||2.2 in||14.2 oz||350||n||Aug 2013||999||-||Panasonic GX7|
|Panasonic GH3« »||5.2 in||3.7 in||3.2 in||19.4 oz||540||Y||Sep 2012||1,299||-||Panasonic GH3|
|Panasonic G3« »||4.5 in||3.3 in||1.9 in||11.9 oz||270||n||May 2011||599||-||Panasonic G3|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||949||-||Panasonic GX1|
|Panasonic G10« »||4.9 in||3.3 in||2.9 in||13.7 oz||380||n||Mar 2010||499||-||Panasonic G10|
|Panasonic G2« »||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599||-||Panasonic G2|
|Panasonic GF1« »||4.7 in||2.8 in||1.4 in||13.6 oz||380||n||Sep 2009||749||-||Panasonic GF1|
|Panasonic GH1« »||4.9 in||3.5 in||1.8 in||13.6 oz||300||n||Mar 2009||1,499||-||Panasonic GH1|
Any camera decision will obviously take relative prices into account. 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 GM1 was launched at a markedly lower price (by 50 percent) than the GH2, which puts it into a different market segment. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Panasonic GH2 vs GM1
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. 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.
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 GH2 offers a slightly higher resolution of 15.9 megapixels, compared with 15.8 MP of the GM1. This megapixels advantage translates into a 0.3 percent gain in linear resolution. On the other hand, these sensor specs imply that the GH2 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 3.77μm for the GM1). Moreover, it should be noted that the GM1 is much more recent (by 3 years) than the GH2, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels.
The Panasonic Lumix DMC-GH2 has a native sensitivity range from ISO 160 to ISO 12800 The corresponding ISO settings for the Panasonic Lumix DMC-GM1 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 125-25600..
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 consideration, the GM1 has a markedly higher DXO score than the GH2 (overall score 6 points higher), which will translate into better image quality. The advantage is based on 1.1 bits higher color depth, 0.4 EV in additional dynamic range, and -0 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 GH2»||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60||Panasonic GH2|
|Panasonic GM1«||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66||Panasonic GM1|
|Panasonic GX85« »||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71||Panasonic GX85|
|Panasonic G7« »||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-||Panasonic G7|
|Panasonic GM5« »||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66||Panasonic GM5|
|Panasonic LX100« »||Four Thirds||12.7||4112||3088||4K/30p||22.3||12.5||553||67||Panasonic LX100|
|Panasonic G6« »||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61||Panasonic G6|
|Panasonic GX7« »||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70||Panasonic GX7|
|Panasonic GH3« »||Four Thirds||15.9||4608||3456||1080/60p||22.7||12.4||812||71||Panasonic GH3|
|Panasonic G3« »||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56||Panasonic G3|
|Panasonic GX1« »||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55||Panasonic GX1|
|Panasonic G10« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.1||411||52||Panasonic G10|
|Panasonic G2« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53||Panasonic G2|
|Panasonic GF1« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54||Panasonic GF1|
|Panasonic GH1« »||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64||Panasonic GH1|
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, and both provide the same movie specifications (1080/60i).
Feature comparison: Panasonic GH2 vs GM1
Apart from body and sensor, cameras can and do differ across a range of features. For example, the GH2 has an electronic viewfinder (1534k 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 GH2 and Panasonic GM1 along with similar information for a selection of comparators.
|Panasonic GH2»||1534||n||3.0||460||swivel||n||4000||3.0||Y||n||Panasonic GH2|
|Panasonic GM1«||-||n||3.0||1036||fixed||Y||500||5.0||Y||n||Panasonic GM1|
|Panasonic GX85« »||2765||n||3.0||1040||tilting||Y||4000||8.0||Y||Y||Panasonic GX85|
|Panasonic G7« »||2360||n||3.0||1040||swivel||Y||4000||7.0||Y||n||Panasonic G7|
|Panasonic GM5« »||1166||n||3.0||921||fixed||Y||500||5.8||n||n||Panasonic GM5|
|Panasonic LX100« »||2764||n||3.0||921||fixed||n||4000||11.0||n||Y||Panasonic LX100|
|Panasonic G6« »||1440||n||3.0||1036||swivel||Y||4000||7.0||Y||n||Panasonic G6|
|Panasonic GX7« »||2760||n||3.0||1040||tilting||Y||8000||5.0||Y||Y||Panasonic GX7|
|Panasonic GH3« »||1746||n||3.0||614||swivel||Y||4000||6.0||Y||n||Panasonic GH3|
|Panasonic G3« »||1440||n||3.0||460||swivel||Y||4000||4.0||Y||n||Panasonic G3|
|Panasonic GX1« »||-||n||3.0||460||fixed||Y||4000||4.2||Y||n||Panasonic GX1|
|Panasonic G10« »||202||n||3.0||460||fixed||n||4000||2.6||Y||n||Panasonic G10|
|Panasonic G2« »||1440||n||3.0||460||swivel||Y||4000||2.6||Y||n||Panasonic G2|
|Panasonic GF1« »||-||n||3.0||460||fixed||n||4000||3.0||Y||n||Panasonic GF1|
|Panasonic GH1« »||1440||n||3.0||460||swivel||n||4000||3.0||Y||n||Panasonic GH1|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GM1 has a touchscreen, while the GH2 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The GH2 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 GM1 does not have a selfie-screen.
The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, the GM1 features an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
Concerning the storage of imaging data, both the GH2 and the GM1 write their files to SDXC cards.
Connectivity comparison: Panasonic GH2 vs GM1
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-GH2 and Panasonic Lumix DMC-GM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Panasonic GH2»||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Panasonic GH2|
|Panasonic GM1«||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GM1|
|Panasonic GX85« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GX85|
|Panasonic G7« »||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Panasonic G7|
|Panasonic GM5« »||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GM5|
|Panasonic LX100« »||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Panasonic LX100|
|Panasonic G6« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Panasonic G6|
|Panasonic GX7« »||Y||stereo||mono||-||-||mini||2.0||Y||Y||-||Panasonic GX7|
|Panasonic GH3« »||Y||stereo||mono||Y||Y||mini||2.0||Y||-||-||Panasonic GH3|
|Panasonic G3« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G3|
|Panasonic GX1« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GX1|
|Panasonic G10« »||Y||mono||-||-||-||mini||2.0||-||-||-||Panasonic G10|
|Panasonic G2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G2|
|Panasonic GF1« »||Y||mono||mono||-||-||mini||2.0||-||-||-||Panasonic GF1|
|Panasonic GH1« »||Y||stereo||-||Y||-||mini||2.0||-||-||-||Panasonic GH1|
It is notable that the GH2 has a hotshoe, while the GM1 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the GH2 and the GM1 have been discontinued, but can regularly be found used on eBay. The GH2 was replaced by the Panasonic GH3, while the GM1 was followed by the Panasonic GM5.
Review summary: Panasonic GH2 vs GM1
So what is the bottom line? Which of the two cameras – the Panasonic GH2 or the Panasonic GM1 – has the upper hand? The listing below highlights the relative strengths of the two models.
Advantages of the Panasonic Lumix DMC-GH2:
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- More flexible LCD: Has 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 (4000/sec vs 500/sec) to freeze action.
- Longer lasting: Can take more shots (330 versus 230) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been available for much longer (launched in September 2010).
Arguments in favor of the Panasonic Lumix DMC-GM1:
- Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.1 bits more color depth).
- More detailed LCD: Has a higher resolution rear screen (1036k vs 460k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (99x55mm vs 124x90mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 238g or 54 percent) and is thus easier to take along.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More modern: Reflects 3 years of technical progress since the GH2 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the GM1 emerges as the winner of the match-up (11 : 8 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 when reflecting and deciding on a new camera.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the GH2 or the GM1. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews: Panasonic GH2 vs GM1
This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.
|Panasonic GH2»||HiRec||79/100||4.5/5||4.5/5||5/5||Sep 2010||1,499||-||Panasonic GH2|
|Panasonic GM1«||Rec||78/100||5/5||4.5/5||4.5/5||Oct 2013||749||-||Panasonic GM1|
|Panasonic GX85« »||HiRec||82/100||5/5||4.5/5||5/5||Apr 2016||799||Panasonic GX85|
|Panasonic G7« »||HiRec||80/100||5/5||4.5/5||4.5/5||May 2015||649||-||Panasonic G7|
|Panasonic GM5« »||Rec||77/100||5/5||5/5||4.5/5||Sep 2014||749||-||Panasonic GM5|
|Panasonic LX100« »||HiRec||85/100||5/5||4/5||5/5||Sep 2014||899||Panasonic LX100|
|Panasonic G6« »||HiRec||-||5/5||-||4.5/5||Apr 2013||599||-||Panasonic G6|
|Panasonic GX7« »||Rec||79/100||5/5||4.5/5||5/5||Aug 2013||999||-||Panasonic GX7|
|Panasonic GH3« »||HiRec||79/100||4.5/5||5/5||4.5/5||Sep 2012||1,299||-||Panasonic GH3|
|Panasonic G3« »||HiRec||75/100||4.5/5||4.5/5||5/5||May 2011||599||-||Panasonic G3|
|Panasonic GX1« »||Rec||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||949||-||Panasonic GX1|
|Panasonic G10« »||-||70/100||4/5||-||4/5||Mar 2010||499||-||Panasonic G10|
|Panasonic G2« »||-||72/100||4/5||4/5||4.5/5||Mar 2010||599||-||Panasonic G2|
|Panasonic GF1« »||85/100||69/100||4.5/5||4.5/5||4.5/5||Sep 2009||749||-||Panasonic GF1|
|Panasonic GH1« »||HiRec||72/100||4.5/5||5/5||4.5/5||Mar 2009||1,499||-||Panasonic GH1|
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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Specifications: Panasonic GH2 vs Panasonic GM1
|Camera Model||Panasonic GH2||Panasonic GM1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||September 2010||October 2013|
|Launch Price||USD 1499||USD 749|
|Sensor Format||Four Thirds Sensor||Four Thirds Sensor|
|Sensor Size||17.3 x 13.0 mm||17.3 x 13.0 mm|
|Sensor Area||224.9 mm2||224.9 mm2|
|Sensor Diagonal||21.6 mm||21.6 mm|
|Sensor Resolution||15.9 Megapixels||15.8 Megapixels|
|Image Resolution||4608 x 3456 pixels||4592 x 3448 pixels|
|Pixel Pitch||3.76 μm||3.77 μm|
|Pixel Density||7.08 MP/cm2||7.04 MP/cm2|
|Movie Capability||1080/60i Video||1080/60i Video|
|ISO Setting||160-12800 ISO||200-25600 ISO|
|Image Processor||Venus FHD||Venus IX|
|Viewfinder Type||Electronic viewfinder||No viewfinder|
|Viewfinder Resolution||1534k dots||n/a|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||460k dots||1036k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Maximum Shutter Speed||1/4000s||1/500s|
|Continuous Shooting||3 shutter flaps/s||5 shutter flaps/s|
|Silent Shooting||no E-Shutter||Electronic Shutter|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||Wifi built-in|
|Battery Type||DMW-BLC12 power pack||DMW-BLH7 power pack|
|Battery Life (CIPA)||330 shots per charge||230 shots per charge|
124 x 90 x 76 mm
(4.9 x 3.5 x 3.0 in)
99 x 55 x 30 mm
(3.9 x 2.2 x 1.2 in)
|Camera Weight||442 g (15.6 oz)||204 g (7.2 oz)|
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