Panasonic GX850 vs GM1
The Panasonic Lumix DMC-GX850 (called Panasonic GX800 in some regions) and the Panasonic Lumix DMC-GM1 are two digital cameras that were revealed to the public, respectively, in January 2017 and October 2013. Both the GX850 and the GM1 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.8 megapixels. 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 GX850||Panasonic GM1|
|Mirrorless system camera||Mirrorless system camera|
|Micro Four Thirds lenses||Micro Four Thirds lenses|
|15.8 MP, Four Thirds Sensor||15.8 MP, Four Thirds Sensor|
|4K/30p Video||1080/60i Video|
|ISO 200-25600||ISO 200-25600|
|No viewfinder, LCD framing||No viewfinder, LCD framing|
|3.0" LCD, 1040k dots||3.0" LCD, 1036k dots|
|Tilting touchscreen||Fixed touchscreen|
|10 shutter flaps per second||5 shutter flaps per second|
|210 shots per battery charge||230 shots per battery charge|
|107 x 65 x 33 mm, 269 g||99 x 55 x 30 mm, 204 g|
Body comparison: Panasonic GX850 vs GM1
The side-by-side display below illustrates the physical size and weight of the Panasonic GX850 and the Panasonic GM1. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left side – the GX850 – 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 Panasonic GM1 is notably smaller (22 percent) than the Panasonic GX850. Moreover, the GM1 is markedly lighter (24 percent) than the GX850. In this context, it is worth noting that neither the GX850 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Panasonic GX850»||4.2 in||2.6 in||1.3 in||9.5 oz||210||n||Jan 2017||549||Panasonic GX850|
|Panasonic GM1«||3.9 in||2.2 in||1.2 in||7.2 oz||230||n||Oct 2013||749||-||Panasonic GM1|
|Olympus E-PL5« »||4.4 in||2.5 in||1.5 in||11.5 oz||360||n||Sep 2012||599||-||Olympus E-PL5|
|Olympus E-PM2« »||4.3 in||2.5 in||1.3 in||9.5 oz||360||n||Sep 2012||499||-||Olympus E-PM2|
|Panasonic GF7« »||4.2 in||2.6 in||1.3 in||9.4 oz||230||n||Jan 2015||499||-||Panasonic GF7|
|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 GF6« »||4.4 in||2.6 in||1.5 in||11.4 oz||340||n||Apr 2013||499||-||Panasonic GF6|
|Panasonic GX7« »||4.8 in||2.8 in||2.2 in||14.2 oz||350||n||Aug 2013||999||-||Panasonic GX7|
|Panasonic G5« »||4.7 in||3.3 in||2.8 in||14.0 oz||320||n||Jul 2012||599||-||Panasonic G5|
|Panasonic GF5« »||4.3 in||2.6 in||1.5 in||9.4 oz||360||n||Apr 2012||499||-||Panasonic GF5|
|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 GF3« »||4.3 in||2.6 in||1.3 in||9.3 oz||300||n||Jun 2011||549||-||Panasonic GF3|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||949||-||Panasonic GX1|
The price is, of course, an important factor in any camera decision. 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 GX850 was launched at a markedly lower price (by 27 percent) than the GM1, 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.
Sensor comparison: Panasonic GX850 vs GM1
The size of the sensor inside a digital camera is one of the key determinants 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 are more costly to manufacture and tend 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.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.8 megapixels. This similarity in sensor specs implies that both the GX850 and the GM1 have the same pixel density, as well as the same pixel size. It should, however, be noted that the GX850 is much more recent (by 3 years and 2 months) than the GM1, and its sensor will have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the GX850 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Panasonic Lumix DMC-GX850 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. 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 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 GX850 has a notably higher overall DXO score than the GM1 (overall score 7 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.9 bits higher color depth, 1.6 EV in additional dynamic range, and 0.2 stops of reduced low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Panasonic GX850»||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73||Panasonic GX850|
|Panasonic GM1«||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66||Panasonic GM1|
|Olympus E-PL5« »||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72||Olympus E-PL5|
|Olympus E-PM2« »||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.2||932||72||Olympus E-PM2|
|Panasonic GF7« »||Four Thirds||15.8||4592||3448||1080/60p||-||-||-||-||Panasonic GF7|
|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 GF6« »||Four Thirds||15.8||4592||3448||1080/60i||20.7||10.6||622||54||Panasonic GF6|
|Panasonic GX7« »||Four Thirds||15.8||4592||3448||1080/60p||22.6||12.2||718||70||Panasonic GX7|
|Panasonic G5« »||Four Thirds||15.9||4608||3456||1080/60p||-||-||-||-||Panasonic G5|
|Panasonic GF5« »||Four Thirds||12.0||4000||3000||1080/60i||21.4||11.6||618||61||Panasonic GF5|
|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 GF3« »||Four Thirds||12.0||4000||3000||1080/60i||20.6||10.0||458||49||Panasonic GF3|
|Panasonic GX1« »||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55||Panasonic GX1|
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 GX850 provides a higher video resolution than the GM1. It can shoot video footage at 4K/30p, while the GM1 is limited to 1080/60i.
Feature comparison: Panasonic GX850 vs GM1
Apart from body and sensor, cameras can and do differ across a variety of features. The GX850 and the GM1 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. The table below summarizes some of the other core capabilities of the Panasonic GX850 and Panasonic GM1 in connection with corresponding information for a sample of similar cameras.
|Panasonic GX850»||-||n||3.0||1040||tilting||Y||500||10.0||Y||n||Panasonic GX850|
|Panasonic GM1«||-||n||3.0||1036||fixed||Y||500||5.0||Y||n||Panasonic GM1|
|Olympus E-PL5« »||-||n||3.0||460||tilting||Y||4000||8.0||n||Y||Olympus E-PL5|
|Olympus E-PM2« »||-||n||3.0||460||fixed||Y||4000||8.0||n||Y||Olympus E-PM2|
|Panasonic GF7« »||-||n||3.0||1040||tilting||Y||500||5.8||Y||n||Panasonic GF7|
|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 GF6« »||-||n||3.0||1040||tilting||Y||4000||4.2||Y||n||Panasonic GF6|
|Panasonic GX7« »||2760||n||3.0||1040||tilting||Y||8000||5.0||Y||Y||Panasonic GX7|
|Panasonic G5« »||1440||n||3.0||920||swivel||Y||4000||6.0||Y||n||Panasonic G5|
|Panasonic GF5« »||-||n||3.0||920||fixed||Y||4000||4.0||Y||n||Panasonic GF5|
|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 GF3« »||-||n||3.0||460||fixed||Y||4000||3.2||Y||n||Panasonic GF3|
|Panasonic GX1« »||-||n||3.0||460||fixed||Y||4000||4.2||Y||n||Panasonic GX1|
The reported shutter speed and shutter burst refer to the use of the mechanical shutter. In addition, both cameras feature 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 GX850 and the GM1 write their files to SDXC cards.
Connectivity comparison: Panasonic GX850 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-GX850 and Panasonic Lumix DMC-GM1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Panasonic GX850»||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GX850|
|Panasonic GM1«||-||stereo||mono||-||-||micro||2.0||Y||-||-||Panasonic GM1|
|Olympus E-PL5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PL5|
|Olympus E-PM2« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Olympus E-PM2|
|Panasonic GF7« »||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Panasonic GF7|
|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 GF6« »||-||stereo||mono||-||-||mini||2.0||Y||Y||-||Panasonic GF6|
|Panasonic GX7« »||Y||stereo||mono||-||-||mini||2.0||Y||Y||-||Panasonic GX7|
|Panasonic G5« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G5|
|Panasonic GF5« »||-||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GF5|
|Panasonic GH3« »||Y||stereo||mono||Y||Y||mini||2.0||Y||-||-||Panasonic GH3|
|Panasonic G3« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic G3|
|Panasonic GF3« »||-||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GF3|
|Panasonic GX1« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Panasonic GX1|
The GX850 is a recent model that features in the current product line-up of Panasonic. In contrast, the GM1 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the GM1 was succeeded by the Panasonic GM5.
Review summary: Panasonic GX850 vs GM1
So what conclusions can be drawn? Which of the two cameras – the Panasonic GX850 or the Panasonic GM1 – has the upper hand? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Panasonic Lumix DMC-GX850:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores markedly higher (7 points) in the DXO overall assessment.
- More dynamic range: Captures a larger spectrum of light and dark details (1.6 EV of extra DR).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- 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 burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- More affordable: Was introduced into a lower priced category (27 percent cheaper at launch).
- More modern: Reflects 3 years and 2 months of technical progress since the GM1 launch.
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.
- More compact: Is smaller (99x55mm vs 107x65mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 65g or 24 percent) and is thus easier to take along.
- More heavily discounted: Has been around for much longer (launched in October 2013).
If the count of individual advantages (bullet points above) is taken as a guide, the GX850 is the clear winner of the match-up (9 : 4 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the GX850 or the GM1 handle or 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.
Expert reviews: Panasonic GX850 vs GM1
This is why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular 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 GX850»||Rec||76/100||4.5/5||4/5||4.5/5||Jan 2017||549||Panasonic GX850|
|Panasonic GM1«||Rec||78/100||5/5||4.5/5||4.5/5||Oct 2013||749||-||Panasonic GM1|
|Olympus E-PL5« »||HiRec||-||4.5/5||4.5/5||4.5/5||Sep 2012||599||-||Olympus E-PL5|
|Olympus E-PM2« »||-||77/100||5/5||4.5/5||4.5/5||Sep 2012||499||-||Olympus E-PM2|
|Panasonic GF7« »||Rec||-||4.5/5||4.5/5||4.5/5||Jan 2015||499||-||Panasonic GF7|
|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 GF6« »||HiRec||-||4.5/5||-||4.5/5||Apr 2013||499||-||Panasonic GF6|
|Panasonic GX7« »||Rec||79/100||5/5||4.5/5||5/5||Aug 2013||999||-||Panasonic GX7|
|Panasonic G5« »||HiRec||-||4.5/5||4.5/5||4.5/5||Jul 2012||599||-||Panasonic G5|
|Panasonic GF5« »||-||-||4.5/5||4/5||4.5/5||Apr 2012||499||-||Panasonic GF5|
|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 GF3« »||82/100||71/100||4.5/5||4.5/5||4/5||Jun 2011||549||-||Panasonic GF3|
|Panasonic GX1« »||Rec||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||949||-||Panasonic GX1|
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, 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 would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
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Specifications: Panasonic GX850 vs Panasonic GM1
|Camera Model||Panasonic GX850||Panasonic GM1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||January 2017||October 2013|
|Launch Price||USD 549||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||15.8 Megapixels||15.8 Megapixels|
|Image Resolution||4592 x 3448 pixels||4592 x 3448 pixels|
|Pixel Pitch||3.77 μm||3.77 μm|
|Pixel Density||7.04 MP/cm2||7.04 MP/cm2|
|Movie Capability||4K/30p Video||1080/60i Video|
|ISO Setting||200-25600 ISO||200-25600 ISO|
|Image Processor||Venus||Venus IX|
|Viewfinder Type||No viewfinder||No viewfinder|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1040k dots||1036k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Maximum Shutter Speed||1/500s||1/500s|
|Continuous Shooting||10 shutter flaps/s||5 shutter flaps/s|
|Silent Shooting||Electronic 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||micro HDMI||micro HDMI|
|Wifi Support||Wifi built-in||Wifi built-in|
|Battery Type||DMW-BLH7 power pack||DMW-BLH7 power pack|
|Battery Life (CIPA)||210 shots per charge||230 shots per charge|
107 x 65 x 33 mm
(4.2 x 2.6 x 1.3 in)
99 x 55 x 30 mm
(3.9 x 2.2 x 1.2 in)
|Camera Weight||269 g (9.5 oz)||204 g (7.2 oz)|
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