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Panasonic GX8 versus Panasonic GX7

The Panasonic Lumix DMC-GX8 and the Panasonic Lumix DMC-GX7 are two enthusiast cameras that were announced, respectively, in July 2015 and August 2013. Both the GX8 and the GX7 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The GX8 has a resolution of 20.2 megapixel, whereas the GX7 provides 15.8 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Panasonic GX8 vs Panasonic GX7

The physical size and weight of the Panasonic GX8 and the Panasonic GX7 are illustrated in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth dimensions are rounded to the nearest millimeter. You can also use the toggle button 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 GX8 – represents the basis for the calculations across all the size and weight measures).

Compare Panasonic GX8 vs Panasonic GX7
GX8 versus GX7 top view
GX8 and GX7 rear side

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic GX7 is notably smaller (16 percent) than the Panasonic GX8. Moreover, the GX7 is markedly lighter (17 percent) than the GX8. It is worth mentioning in this context that the GX8 is splash and dust resistant, while the GX7 does not feature any corresponding weather-sealing.

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.

Concerning battery life, the GX8 gets 330 shots out of its DMW-BLC12 battery, while the GX7 can take 350 images on a single charge of its DMW-BLG10 power pack.

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 camera comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Panasonic GX8 (⇒ rgt) 5.2 in 3.1 in 2.5 in 17.2 oz 330 YES 2015 1,199discont. check
Panasonic GX7 (⇒ lft) 4.8 in 2.8 in 2.2 in 14.2 oz 350 no 2013 999discont. check
Olympus E-M1 II (⇒ lft | rgt) 5.3 in 3.6 in 2.6 in 20.2 oz 440 YES 2016 1,999 latest check
Olympus PEN-F (⇒ lft | rgt) 4.9 in 2.8 in 1.5 in 15.1 oz 330 no 2016 1,199 latest 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-PL7 (⇒ lft | rgt) 4.5 in 2.6 in 1.5 in 12.6 oz 350 no 2014 599discont. check
Olympus E-M10 (⇒ lft | rgt) 4.7 in 3.2 in 1.8 in 14.0 oz 320 no 2014 699discont. check
Olympus E-P5 (⇒ lft | rgt) 4.8 in 2.7 in 1.5 in 14.8 oz 330 no 2013 999discont. check
Panasonic GX9 (⇒ lft | rgt) 4.9 in 2.8 in 1.9 in 14.4 oz 260 no 2018 849 latest check
Panasonic GH5 (⇒ lft | rgt) 5.5 in 3.9 in 3.4 in 25.6 oz 410 YES 2017 1,999 latest check
Panasonic G85 (⇒ lft | rgt) 5.0 in 3.5 in 2.9 in 17.8 oz 330 YES 2016 899 latest check
Panasonic GX85 (⇒ lft | rgt) 4.8 in 2.8 in 1.7 in 15.0 oz 290 no 2016 799 latest check
Panasonic G6 (⇒ lft | rgt) 4.8 in 3.3 in 2.8 in 13.8 oz 340 no 2013 599discont. check
Panasonic GX1 (⇒ lft | rgt) 4.6 in 2.7 in 1.5 in 11.2 oz 320 no 2011 949discont. check
Sony A6300 (⇒ lft | rgt) 4.7 in 2.6 in 1.9 in 14.3 oz 400 YES 2016 999discont. check
Sony A6500 (⇒ lft | rgt) 4.7 in 2.6 in 2.1 in 16.0 oz 350 YES 2016 1,399 latest check

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 GX7 was launched at a somewhat lower price (by 17 percent) than the GX8, which makes it more attractive for photographers on a tight budget. 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 GX8 vs Panasonic GX7

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. 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 tend to be associated with larger, more expensive camera bodies 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.

Panasonic GX8 and Panasonic GX7 sensor measures

While the two cameras under review share the same sensor size, the GX8 offers a higher resolution of 20.2 megapixel, compared with 15.8 MP of the GX7. This megapixel advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the GX8 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 GX7). In this context, it should be noted, however, that the GX8 is a somewhat more recent model (by 1 year and 11 months) than the GX7, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

GX8 versus GX7 MP

Consistent information on actual sensor performance is available from DXO Mark for most cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the GX8 has a notably higher overall DXO score than the GX7 (overall score 5 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.9 bits higher color depth, 0.4 EV in additional dynamic range, and 0.2 stops in additional 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.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Panasonic GX8 (⇒ rgt) Four Thirds 20.2 5184 3888 4K/30p 23.5 12.6 806 75
Panasonic GX7 (⇒ lft) Four Thirds 15.8 4592 3448 1080/60p 22.6 12.2 718 70
Olympus E-M1 II (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/30p 23.7 12.8 1312 80
Olympus PEN-F (⇒ lft | rgt) Four Thirds 20.2 5184 3888 1080/60p 23.1 12.4 894 74
Olympus E-M5 II (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/60p 23.0 12.5 842 73
Olympus E-PL7 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/30p 22.7 12.4 873 72
Olympus E-M10 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/30p 22.8 12.3 884 72
Olympus E-P5 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/30p 22.8 12.4 895 72
Panasonic GX9 (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/30p .. .. .. ..
Panasonic GH5 (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/60p 23.9 13.0 807 77
Panasonic G85 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 4K/30p 22.8 12.5 656 71
Panasonic GX85 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 4K/30p 22.9 12.6 662 71
Panasonic G6 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/60p 21.3 11.5 639 61
Panasonic GX1 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 1080/60p 20.8 10.6 703 55
Sony A6300 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p 24.4 13.7 1437 85
Sony A6500 (⇒ lft | rgt) APS-C 24.0 6000 4000 4K/30p 24.5 13.7 1405 85

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GX8 provides a higher video resolution than the GX7. It can shoot video footage at 4K/30p, while the GX7 is limited to 1080/60p.

Feature comparison: Panasonic GX8 vs Panasonic GX7

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the GX7 offers a higher resolution than the one in the GX8 (2760k vs 2360k dots). The adjacent table lists some of the other core features of the Panasonic GX8 and Panasonic GX7 along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Panasonic GX8 (⇒ rgt) 2360 no 3.0 1040 swivel YES 8000 10.0 no YES
Panasonic GX7 (⇒ lft) 2760 no 3.0 1040 tilting YES 8000 5.0 7 YES
Olympus E-M1 II (⇒ lft | rgt) 2360 no 3.0 1037 swivel YES 8000 18.0 no YES
Olympus PEN-F (⇒ lft | rgt) 2360 no 3.0 1037 swivel YES 8000 10.0 no YES
Olympus E-M5 II (⇒ lft | rgt) 2360 no 3.0 1037 swivel YES 8000 10.0 no YES
Olympus E-PL7 (⇒ lft | rgt) no no 3.0 1037 tilting YES 4000 8.0 no YES
Olympus E-M10 (⇒ lft | rgt) 1440 no 3.0 1037 tilting YES 4000 8.0 5.8 YES
Olympus E-P5 (⇒ lft | rgt) no no 3.0 1037 tilting YES 8000 9.0 7 YES
Panasonic GX9 (⇒ lft | rgt) 2760 no 3.0 1240 tilting YES 4000 9.0 6 YES
Panasonic GH5 (⇒ lft | rgt) 3680 no 3.2 1620 swivel YES 8000 12.0 no YES
Panasonic G85 (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 4000 9.0 6.2 YES
Panasonic GX85 (⇒ lft | rgt) 2765 no 3.0 1040 tilting YES 4000 8.0 6 YES
Panasonic G6 (⇒ lft | rgt) 1440 no 3.0 1036 swivel YES 4000 7.0 10.5 no
Panasonic GX1 (⇒ lft | rgt) no no 3.0 460 fixed YES 4000 4.2 7.6 no
Sony A6300 (⇒ lft | rgt) 2300 no 3.0 922 tilting no 4000 11.0 6 no
Sony A6500 (⇒ lft | rgt) 2300 no 3.0 922 tilting YES 4000 11.0 6 YES

Both the GX8 and the GX7 have been discontinued, but can regularly be found used on eBay. The GX7 was replaced by the Panasonic GX85, while the GX8 was followed by the Panasonic GX9.

Review summary: Panasonic GX8 vs Panasonic GX7

So what conclusions can be drawn? Is the Panasonic GX8 better than the Panasonic GX7 or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Panasonic Lumix DMC-GX8:

  • More detail: Offers more megapixels (20.2 vs 15.8MP) with a 13% higher linear resolution.
  • Better image quality: Scores markedly higher (5 points) in the DXO overall assessment.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More modern: Is somewhat more recent (announced 1 year and 11 months after the GX7).

Arguments in favor of the Panasonic Lumix DMC-GX7:

  • More detailed viewfinder: Has higher resolution electronic viewfinder (2760k vs 2360k dots).
  • More compact: Is smaller (123x71mm vs 133x78mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 85g or 17 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was released into a lower priced segment (17 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in August 2013).

If the number of relative strengths (bullet points above) is taken as a guide, the GX8 comes out slightly ahead of the GX7 (7 : 6 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.

GX8 07:06 GX7

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 GX8 or the GX7 handle or 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 why hands-on reviews by experts are important. 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 detailed reviews can be accessed by clicking on the site logo in the table header.

Review scores
Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Panasonic GX8 (⇒ rgt) Rec 82/100 Silver 4.5/5 5/5 4.5/5 2015 1,199discont. check
Panasonic GX7 (⇒ lft) Rec 79/100 Silver 5/5 4.5/5 5/5 2013 999discont. check
Olympus E-M1 II (⇒ lft | rgt) HiRec 85/100 Gold 4.5/5 5/5 4.5/5 2016 1,999 latest check
Olympus PEN-F (⇒ lft | rgt) - 82/100 Silver 4.5/5 4.5/5 5/5 2016 1,199 latest 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-PL7 (⇒ lft | rgt) Rec - 5/5 4.5/5 4/5 2014 599discont. check
Olympus E-M10 (⇒ lft | rgt) - 80/100 Gold 5/5 4.5/5 5/5 2014 699discont. check
Olympus E-P5 (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4.5/5 5/5 2013 999discont. check
Panasonic GX9 (⇒ lft | rgt) Rec .. 4.5/5 .. 4.5/5 2018 849 latest check
Panasonic GH5 (⇒ lft | rgt) HiRec 85/100 Gold 4.5/5 5/5 5/5 2017 1,999 latest check
Panasonic G85 (⇒ lft | rgt) HiRec 84/100 Gold 5/5 4.5/5 4.5/5 2016 899 latest check
Panasonic GX85 (⇒ lft | rgt) HiRec 82/100 Silver 5/5 4.5/5 5/5 2016 799 latest check
Panasonic G6 (⇒ lft | rgt) HiRec - 5/5 - 4.5/5 2013 599discont. check
Panasonic GX1 (⇒ lft | rgt) 85/100 Rec 77/100 Silver 4.5/5 4.5/5 4.5/5 2011 949discont. check
Sony A6300 (⇒ lft | rgt) Rec 85/100 Gold 5/5 5/5 5/5 2016 999discont. check
Sony A6500 (⇒ lft | rgt) HiRec 85/100 Silver 4.5/5 5/5 4.5/5 2016 1,399 latest check

The review scores listed above should be treated 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 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.

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu 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, kindly get in touch, and I will try to add information on that model to the database.

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