Panasonic G7 vs YI M1
The Panasonic Lumix DMC-G7 and the YI M1 are two digital cameras that were announced, respectively, in May 2015 and September 2016. Both the G7 and the M1 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The Panasonic has a resolution of 15.8 megapixels, whereas the YI provides 20.2 MP.
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-G7 and the YI M1? 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 G7 and the YI M1 are illustrated 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 measures are rounded to the nearest millimeter.
Both cameras are available in two different colors (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the YI M1 is considerably smaller (32 percent) than the Panasonic G7. Moreover, the M1 is markedly lighter (31 percent) than the G7. In this context, it is worth noting that neither the G7 nor the M1 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 power pack in the M1 can be charged via the USB port, which can be very convenient when travelling.
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 G7||125 mm||86 mm||77 mm||410 g||350||n||May 2015||649|
|2.||YI M1||114 mm||64 mm||34 mm||281 g||450||n||Sep 2016||349|
|3.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|4.||Fujifilm X-A3||117 mm||67 mm||40 mm||339 g||410||n||Aug 2016||399|
|5.||Nikon 1 J5||98 mm||60 mm||32 mm||231 g||250||n||Apr 2015||399|
|6.||Olympus E-PL7||115 mm||67 mm||38 mm||357 g||350||n||Aug 2014||599|
|7.||Panasonic GX850||107 mm||65 mm||33 mm||269 g||210||n||Jan 2017||549|
|8.||Panasonic GF7||107 mm||65 mm||33 mm||266 g||230||n||Jan 2015||499|
|9.||Panasonic GM5||99 mm||60 mm||36 mm||211 g||220||n||Sep 2014||749|
|10.||Panasonic G6||122 mm||85 mm||71 mm||390 g||340||n||Apr 2013||599|
|11.||Panasonic GM1||99 mm||55 mm||30 mm||204 g||230||n||Oct 2013||749|
|12.||Panasonic G5||120 mm||83 mm||71 mm||396 g||320||n||Jul 2012||599|
|13.||Panasonic G3||115 mm||84 mm||47 mm||336 g||270||n||May 2011||599|
|14.||Panasonic G2||124 mm||84 mm||74 mm||428 g||360||n||Mar 2010||599|
|15.||Panasonic GH2||124 mm||90 mm||76 mm||442 g||330||n||Sep 2010||899|
|16.||Panasonic GF1||119 mm||71 mm||36 mm||385 g||380||n||Sep 2009||749|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 M1 was launched at a markedly lower price (by 46 percent) than the G7, 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.
The size of the imaging sensor is a crucial determinant 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. 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.
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.
In terms of underlying technology, both cameras are build around CMOS sensors.
While the two cameras under review share the same sensor size, the M1 offers a higher resolution of 20.2 megapixels, compared with 15.8 MP of the G7. This megapixels advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the M1 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 3.77μm for the G7). However, it should be noted that the M1 is a somewhat more recent model (by 1 year and 4 months) than the G7, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The resolution advantage of the YI M1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M1 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Panasonic G7 are 23 x 17.2 inches or 58.3 x 43.8 cm for good quality, 18.4 x 13.8 inches or 46.7 x 35 cm for very good quality, and 15.3 x 11.5 inches or 38.9 x 29.2 cm for excellent quality prints.
The Panasonic Lumix DMC-G7 has a native sensitivity range from ISO 160 to ISO 25600. The corresponding ISO settings for the YI M1 are ISO 100 to ISO 25600 (no boost).
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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|1.||Panasonic G7||Four Thirds||15.8||4592||3448||4K/30p||..||..||..||..|
|2.||YI M1||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|5.||Nikon 1 J5||1-inch||20.7||5568||3712||4K/15p||21.1||12.0||479||65|
|6.||Olympus E-PL7||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72|
|7.||Panasonic GX850||Four Thirds||15.8||4592||3448||4K/30p||23.2||13.3||586||73|
|8.||Panasonic GF7||Four Thirds||15.8||4592||3448||1080/60p||..||..||..||..|
|9.||Panasonic GM5||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|10.||Panasonic G6||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|11.||Panasonic GM1||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|12.||Panasonic G5||Four Thirds||15.9||4608||3456||1080/60p||..||..||..||..|
|13.||Panasonic G3||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|14.||Panasonic G2||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|15.||Panasonic GH2||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|16.||Panasonic GF1||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||513||54|
Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (4K/30p).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G7 has an electronic viewfinder (2360k dots), which can be very helpful when shooting in bright sunlight. In contrast, the M1 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Panasonic G7 and YI M1 in connection with corresponding information for a sample of similar cameras.
|5.||Nikon 1 J5||none||n||3.0||1037||tilting||Y||1/4000s||60.0||Y||n|
One difference between the cameras concerns the presence of an on-board flash. The G7 has one, while the M1 does not. While the built-in flash of the G7 is not very powerful, it can at times be useful as a fill-in light.The G7 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 M1 does not have a selfie-screen.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the G7 is one of those camera that have an additional 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).
The Panasonic G7 and the YI M1 both have 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.
Concerning the storage of imaging data, both the G7 and the M1 write their files to SDXC cards. The G7 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the M1 cannot take advantage of Ultra High Speed SD 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-G7 and YI M1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|5.||Nikon 1 J5||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the G7 has a microphone port, which is missing on the M1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
The M1 is a recent model that features in the current product line-up of YI. In contrast, the G7 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the G7 was succeeded by the Panasonic G85. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and YI websites.
So what is the bottom line? Which of the two cameras – the Panasonic G7 or the YI M1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Panasonic Lumix DMC-G7:
- Better sound: Can connect to an external microphone for higher quality sound recording.
- 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 burst: Shoots at higher frequency (7 vs 5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards.
- More heavily discounted: Has been on the market for longer (launched in May 2015).
Advantages of the YI M1:
- More detail: Has more megapixels (20.2 vs 15.8MP), which boosts linear resolution by 13%.
- More compact: Is smaller (114x64mm vs 125x86mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 129g or 31 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (450 versus 350) out of a single battery charge.
- Easier travel charging: Can be conveniently charged via its USB port.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 4 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the G7 comes out slightly ahead of the M1 (9 : 8 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 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 Panasonic G7 and the YI M1 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 incomplete and does no justice, for example, to the way the G7 or the M1 perform in practice. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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 G7||4/5||+ +||80/100||5/5||4.5/5||May 2015||649|
|2.||YI M1||..||..||69/100||..||..||Sep 2016||349|
|3.||Canon SX730||..||+||..||4/5||4/5||Apr 2017||399|
|4.||Fujifilm X-A3||..||..||74/100||4.5/5||4/5||Aug 2016||399|
|5.||Nikon 1 J5||..||..||..||4.5/5||4.5/5||Apr 2015||399|
|6.||Olympus E-PL7||4/5||+||..||5/5||4/5||Aug 2014||599|
|7.||Panasonic GX850||..||+||76/100||4.5/5||4.5/5||Jan 2017||549|
|8.||Panasonic GF7||4/5||+||..||4.5/5||4.5/5||Jan 2015||499|
|9.||Panasonic GM5||3.5/5||+||77/100||5/5||4.5/5||Sep 2014||749|
|10.||Panasonic G6||4/5||+ +||..||5/5||4.5/5||Apr 2013||599|
|11.||Panasonic GM1||3/5||+||78/100||5/5||4.5/5||Oct 2013||749|
|12.||Panasonic G5||3/5||+ +||..||4.5/5||4.5/5||Jul 2012||599|
|13.||Panasonic G3||3/5||+ +||75/100||4.5/5||5/5||May 2011||599|
|14.||Panasonic G2||..||..||72/100||4/5||4.5/5||Mar 2010||599|
|15.||Panasonic GH2||5/5||+ +||79/100||4.5/5||5/5||Sep 2010||899|
|16.||Panasonic GF1||..||85/100||69/100||4.5/5||4.5/5||Sep 2009||749|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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.
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 your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Panasonic G7 vs YI M1
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 G7||YI M1|
|Camera Type||Mirrorless system camera||Mirrorless system camera|
|Camera Lens||Micro Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||May 2015||September 2016|
|Launch Price||USD 649||USD 349|
|Sensor Specs||Panasonic G7||YI M1|
|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||20.2 Megapixels|
|Image Resolution||4592 x 3448 pixels||5184 x 3888 pixels|
|Pixel Pitch||3.77 μm||3.34 μm|
|Pixel Density||7.04 MP/cm2||8.96 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||4K/30p Video|
|ISO Setting||160 - 25,600 ISO||100 - 25,600 ISO|
|Screen Specs||Panasonic G7||YI M1|
|Viewfinder Type||Electronic viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||1040k dots|
|LCD Attachment||Swivel screen||Fixed screen|
|Shooting Specs||Panasonic G7||YI M1|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||7 shutter flaps/s||5 shutter flaps/s|
|Electronic Shutter||up to 1/16000s||no E-Shutter|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Fill Flash||Built-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-II||no|
|Connectivity Specs||Panasonic G7||YI M1|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Panasonic G7||YI M1|
|Battery Life (CIPA)||350 shots per charge||450 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
125 x 86 x 77 mm
(4.9 x 3.4 x 3.0 in)
114 x 64 x 34 mm
(4.5 x 2.5 x 1.3 in)
|Camera Weight||410 g (14.5 oz)||281 g (9.9 oz)|
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