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Panasonic GH4 versus Panasonic G7

The Panasonic Lumix DMC-GH4 and the Panasonic Lumix DMC-G7 are two digital cameras that were announced, respectively, in February 2014 and May 2015. Both the GH4 and the G7 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The GH4 has a resolution of 15.9 megapixel, whereas the G7 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 GH4 vs Panasonic G7

An illustration of the physical size and weight of the Panasonic GH4 and the Panasonic G7 is provided 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 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 GH4 – represents 100 percent across all the size and weight measures).

Compare Panasonic GH4 vs Panasonic G7
GH4 versus G7 top view
GH4 and G7 rear side

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G7 is notably smaller (13 percent) than the Panasonic GH4. Moreover, the G7 is markedly lighter (27 percent) than the GH4. It is worth mentioning in this context that the GH4 is splash and dust resistant, while the G7 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 GH4 gets 500 shots out of its DMW-BLF19 battery, while the G7 can take 350 images on a single charge of its DMW-BLC12 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 GH4 (⇒ rgt) 5.2 in 3.7 in 3.3 in 19.8 oz 500 YES 2014 1,499discont. check
Panasonic G7 (⇒ lft) 4.9 in 3.4 in 3.0 in 14.5 oz 350 no 2015 649discont. 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 1,399discont. check
Panasonic GX850 (⇒ lft | rgt) 4.2 in 2.6 in 1.3 in 9.5 oz 210 no 2017 549 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 GX8 (⇒ lft | rgt) 5.2 in 3.1 in 2.5 in 17.2 oz 330 YES 2015 1,199discont. check
Panasonic GF7 (⇒ lft | rgt) 4.2 in 2.6 in 1.3 in 9.4 oz 230 no 2015 499discont. check
Panasonic GM5 (⇒ lft | rgt) 3.9 in 2.4 in 1.4 in 7.4 oz 220 no 2014 749discont. check
Panasonic G6 (⇒ lft | rgt) 4.8 in 3.3 in 2.8 in 13.8 oz 340 no 2013 599discont. check
Panasonic GM1 (⇒ lft | rgt) 3.9 in 2.2 in 1.2 in 7.2 oz 230 no 2013 749discont. check
Panasonic GH3 (⇒ lft | rgt) 5.2 in 3.7 in 3.2 in 19.4 oz 540 YES 2012 1,299discont. check
Sony A7 (⇒ lft | rgt) 5.0 in 3.7 in 1.9 in 16.7 oz 340 YES 2013 1,699discont. 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 G7 was launched at a markedly lower price (by 57 percent) than the GH4, 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 GH4 vs Panasonic G7

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixels 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 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 GH4 and Panasonic G7 sensor measures

While the two cameras under review share the same sensor size, the GH4 offers a slightly higher resolution of 15.9 megapixel, compared with 15.8 MP of the G7. This megapixel advantage translates into a 0.3 percent gain in linear resolution. On the other hand, these sensor specs imply that the GH4 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 G7). Moreover, it should be noted that the G7 is a somewhat more recent model (by 1 year and 3 months) than the GH4, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of individual pixels.

GH4 versus G7 MP

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. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Panasonic GH4 (⇒ rgt) Four Thirds 15.9 4608 3456 4K/30p 23.2 12.8 791 74
Panasonic G7 (⇒ lft) Four Thirds 15.8 4592 3448 4K/30p - - - -
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
Panasonic GX850 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 4K/30p 23.2 13.3 586 73
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 GX8 (⇒ lft | rgt) Four Thirds 20.2 5184 3888 4K/30p 23.5 12.6 806 75
Panasonic GF7 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 1080/60p - - - -
Panasonic GM5 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 1080/60p 22.1 11.7 721 66
Panasonic G6 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/60p 21.3 11.5 639 61
Panasonic GM1 (⇒ lft | rgt) Four Thirds 15.8 4592 3448 1080/60i 22.3 11.7 660 66
Panasonic GH3 (⇒ lft | rgt) Four Thirds 15.9 4608 3456 1080/60p 22.7 12.4 812 71
Sony A7 (⇒ lft | rgt) Full Frame 24.0 6000 4000 1080/60p 24.8 14.2 2248 90

Many modern cameras are not only capable of taking still images, but also of capturing video footage. 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).

Feature comparison: Panasonic GH4 vs Panasonic G7

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the G7 offers a slightly higher resolution than the one in the GH4 (2360k vs 2359k dots). The adjacent table lists some of the other core features of the Panasonic GH4 and Panasonic G7 along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

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 GH4 (⇒ rgt) 2359 no 3.0 1036 swivel YES 8000 12.0 17 no
Panasonic G7 (⇒ lft) 2360 no 3.0 1040 swivel YES 4000 7.0 9.3 no
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
Panasonic GX850 (⇒ lft | rgt) no no 3.0 1040 tilting YES 500 10.0 4 no
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 GX8 (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 8000 10.0 no YES
Panasonic GF7 (⇒ lft | rgt) no no 3.0 1040 tilting YES 500 5.8 4 no
Panasonic GM5 (⇒ lft | rgt) 1166 no 3.0 921 fixed YES 500 5.8 no no
Panasonic G6 (⇒ lft | rgt) 1440 no 3.0 1036 swivel YES 4000 7.0 10.5 no
Panasonic GM1 (⇒ lft | rgt) no no 3.0 1036 fixed YES 500 5.0 4 no
Panasonic GH3 (⇒ lft | rgt) 1746 no 3.0 614 swivel YES 4000 6.0 12 no
Sony A7 (⇒ lft | rgt) 2400 no 3.0 1230 tilting no 8000 5.0 no no

Both the GH4 and the G7 have been discontinued, but can regularly be found used on eBay. The GH4 was replaced by the Panasonic GH5, while the G7 was followed by the Panasonic G85.

Review summary: Panasonic GH4 vs Panasonic G7

So what conclusions can be drawn? Is there a clear favorite between the Panasonic GH4 and the Panasonic G7? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Panasonic Lumix DMC-GH4:

  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 7 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (500 versus 350) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More heavily discounted: Has been on the market for longer (launched in February 2014).

Advantages of the Panasonic Lumix DMC-G7:

  • More compact: Is smaller (125x86mm vs 133x93mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 150g or 27 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (57 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year and 3 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the GH4 comes out slightly ahead of the G7 (5 : 4 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.

GH4 05:04 G7

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the GH4 and the G7 in practical situations. 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. This is where reviews by experts come in. 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.

Review scores
Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Panasonic GH4 (⇒ rgt) HiRec 85/100 Gold 5/5 5/5 5/5 2014 1,499discont. check
Panasonic G7 (⇒ lft) HiRec 80/100 Silver 5/5 4.5/5 4.5/5 2015 649discont. 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 1,399discont. check
Panasonic GX850 (⇒ lft | rgt) Rec 76/100 4.5/5 4/5 4.5/5 2017 549 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 GX8 (⇒ lft | rgt) Rec 82/100 Silver 4.5/5 5/5 4.5/5 2015 1,199discont. check
Panasonic GF7 (⇒ lft | rgt) Rec - 4.5/5 4.5/5 4.5/5 2015 499discont. check
Panasonic GM5 (⇒ lft | rgt) Rec 77/100 Silver 5/5 5/5 4.5/5 2014 749discont. check
Panasonic G6 (⇒ lft | rgt) HiRec - 5/5 - 4.5/5 2013 599discont. check
Panasonic GM1 (⇒ lft | rgt) Rec 78/100 Gold 5/5 4.5/5 4.5/5 2013 749discont. check
Panasonic GH3 (⇒ lft | rgt) HiRec 79/100 Gold 4.5/5 5/5 4.5/5 2012 1,299discont. check
Sony A7 (⇒ lft | rgt) HiRec 80/100 Silver 5/5 4.5/5 5/5 2013 1,699discont. 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 comparisons of ratings among very different cameras or across long time periods 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 make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you cannot find the camera you are interested in, please contact me, and I will try to add information on that model to the database.

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