Panasonic GH4 versus Olympus E-M5 II
The Panasonic Lumix DMC-GH4 and the Olympus OM-D E-M5 Mark II are two enthusiast cameras that were officially introduced, respectively, in February 2014 and February 2015. Both the GH4 and the E-M5 II are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.9 megapixel.
The physical size and weight of the Panasonic GH4 and the Olympus E-M5 II are illustrated in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures 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 – the GH4 – represents 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 Olympus E-M5 II is notably smaller (15 percent) than the Panasonic GH4. Moreover, the E-M5 II is markedly lighter (16 percent) than the GH4. Cameras intended for semi-professional or professional use tend to be a bit bulkier in order to give them the necessary ruggedness. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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.
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 comparisons there.
|Camera Body Specifications
|Panasonic GH4 (⇒ rgt)||5.2 in||3.7 in||3.3 in||19.8 oz||500||YES||2014||1,499||discont.||check|
|Olympus E-M5 II (⇒ lft)||4.9 in||3.3 in||1.8 in||16.5 oz||310||YES||2015||1,099||latest||check|
|Canon 7D II (⇒ lft | rgt)||5.9 in||4.4 in||3.1 in||32.1 oz||670||YES||2014||1,799||latest||check|
|Fujifilm X-T1 (⇒ lft | rgt)||5.1 in||3.5 in||1.9 in||15.5 oz||350||YES||2014||1,699||discont.||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 E-M10 II (⇒ lft | rgt)||4.7 in||3.3 in||1.9 in||13.8 oz||320||no||2015||799||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||4.7 in||3.2 in||1.8 in||14.0 oz||320||no||2014||699||discont.||check|
|Olympus E-M1 (⇒ lft | rgt)||5.1 in||3.7 in||2.5 in||17.5 oz||350||YES||2013||1,399||discont.||check|
|Olympus E-M5 (⇒ lft | rgt)||4.8 in||3.5 in||1.7 in||15.0 oz||..||YES||2012||1,299||discont.||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 G7 (⇒ lft | rgt)||4.9 in||3.4 in||3.0 in||14.5 oz||350||no||2015||649||discont.||check|
|Panasonic GM5 (⇒ lft | rgt)||3.9 in||2.4 in||1.4 in||7.4 oz||220||no||2014||749||discont.||check|
|Panasonic G6 (⇒ lft | rgt)||4.8 in||3.3 in||2.8 in||13.8 oz||340||no||2013||599||discont.||check|
|Panasonic GM1 (⇒ lft | rgt)||3.9 in||2.2 in||1.2 in||7.2 oz||230||no||2013||749||discont.||check|
|Panasonic GH3 (⇒ lft | rgt)||5.2 in||3.7 in||3.2 in||19.4 oz||540||YES||2012||1,299||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-M5 II was launched at a markedly lower price (by 27 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.9 megapixel. This similarity in sensor specs implies that both the GH4 and the E-M5 II have the same pixel density, as well as the same pixel size. It should, however, be noted that the E-M5 II is a somewhat more recent model (by 11 months) than the GH4, and its sensor might have benefitted from technological advances during this time.
For most cameras, data on sensor performance has been reported by DXO Mark. 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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar image quality. 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 GH4 (⇒ rgt)||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|Olympus E-M5 II (⇒ lft)||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|Canon 7D II (⇒ lft | rgt)||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|Fujifilm X-T1 (⇒ lft | rgt)||APS-C||16.0||4896||3264||1080/60p||-||-||-||-|
|Olympus E-M1 II (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|Olympus E-M10 II (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
|Olympus E-M10 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|Olympus E-M1 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|Olympus E-M5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60i||22.8||12.3||826||71|
|Panasonic GH5 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Panasonic G7 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||-||-||-||-|
|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|
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 GH4 provides a higher video resolution than the E-M5 II. It can shoot video footage at 4K/30p, while the Olympus is limited to 1080/60p.
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 E-M5 II 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 Olympus E-M5 II along with similar information for a selection of comparators. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Panasonic GH4 (⇒ rgt)||2359||no||3.0||1036||swivel||YES||8000||12.0||17||no|
|Olympus E-M5 II (⇒ lft)||2360||no||3.0||1037||swivel||YES||8000||10.0||no||YES|
|Canon 7D II (⇒ lft | rgt)||optical||YES||3.0||1040||fixed||no||8000||10.0||11||no|
|Fujifilm X-T1 (⇒ lft | rgt)||2360||no||3.0||1040||tilting||no||4000||8.0||no||no|
|Olympus E-M1 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||18.0||no||YES|
|Olympus E-M10 II (⇒ lft | rgt)||2360||no||3.0||1040||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-M10 (⇒ lft | rgt)||1440||no||3.0||1037||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-M1 (⇒ lft | rgt)||2360||no||3.0||1037||tilting||YES||8000||10.0||no||YES|
|Olympus E-M5 (⇒ lft | rgt)||1440||no||3.0||610||tilting||YES||4000||9.0||no||YES|
|Panasonic GH5 (⇒ lft | rgt)||3680||no||3.2||1620||swivel||YES||8000||12.0||no||YES|
|Panasonic G7 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||4000||7.0||9.3||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|
The E-M5 II is a current model that online retailers, such as amazon, will have in stock. In contrast, the GH4 has been discontinued (but it can be found pre-owned on ebay). As a replacement in the same line of cameras, the GH4 was succeeded by the Panasonic GH5.
So what conclusions can be drawn? Is there a clear favorite between the Panasonic GH4 and the Panasonic GH4? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Panasonic Lumix DMC-GH4:
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (500 versus 310) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been on the market for longer (launched in February 2014).
Reasons to prefer the Olympus OM-D E-M5 Mark II:
- More detailed viewfinder: Has a higher resolution electronic viewfinder (2360k vs 2359k dots).
- More compact: Is smaller (124x85mm vs 133x93mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 91g or 16 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More affordable: Was introduced into a lower priced category (27 percent cheaper at launch).
- More modern: Was introduced somewhat (11 months) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the E-M5 II comes out slightly ahead of the GH4 (6 : 5 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.
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 GH4 or the E-M5 II. 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 following table reports the overall rankings of the cameras as published by some of the major camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Panasonic GH4 (⇒ rgt)||HiRec||85/100 Gold||5/5||5/5||5/5||2014||1,499||discont.||check|
|Olympus E-M5 II (⇒ lft)||HiRec||81/100 Silver||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Canon 7D II (⇒ lft | rgt)||Rec||84/100 Silver||4/5||5/5||4.5/5||2014||1,799||latest||check|
|Fujifilm X-T1 (⇒ lft | rgt)||HiRec||84/100 Gold||5/5||4/5||5/5||2014||1,699||discont.||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 E-M10 II (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||5/5||5/5||2015||799||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||-||80/100 Gold||5/5||4.5/5||5/5||2014||699||discont.||check|
|Olympus E-M1 (⇒ lft | rgt)||HiRec||84/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,399||discont.||check|
|Olympus E-M5 (⇒ lft | rgt)||HiRec||80/100 Gold||4.5/5||5/5||5/5||2012||1,299||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||5/5||2017||1,999||latest||check|
|Panasonic G7 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4.5/5||4.5/5||2015||649||discont.||check|
|Panasonic GM5 (⇒ lft | rgt)||Rec||77/100 Silver||5/5||5/5||4.5/5||2014||749||discont.||check|
|Panasonic G6 (⇒ lft | rgt)||HiRec||-||5/5||-||4.5/5||2013||599||discont.||check|
|Panasonic GM1 (⇒ lft | rgt)||Rec||78/100 Gold||5/5||4.5/5||4.5/5||2013||749||discont.||check|
|Panasonic GH3 (⇒ lft | rgt)||HiRec||79/100 Gold||4.5/5||5/5||4.5/5||2012||1,299||discont.||check|
Care should be taken when interpreting the review scores above, 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 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.
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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, please send me an email, and I will try to add information on that model to the database.
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