Panasonic GH3 versus Panasonic GH2
The Panasonic Lumix DMC-GH3 and the Panasonic Lumix DMC-GH2 are two enthusiast cameras that were announced, respectively, in September 2012 and September 2010. Both the GH3 and the GH2 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. Both cameras offer a resolution of 15.9 megapixel. 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 GH3 vs Panasonic GH2
The physical size and weight of the Panasonic GH3 and the Panasonic GH2 are illustrated in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All width, height and depth 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 – the GH3 – represents the basis or 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 Panasonic GH2 is notably smaller (10 percent) than the Panasonic GH3. Moreover, the GH2 is markedly lighter (20 percent) than the GH3. It is worth mentioning in this context that the GH3 is splash and dust resistant, while the GH2 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.
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|
|Panasonic GH3»||5.2 in||3.7 in||3.2 in||19.4 oz||540||Y||Sep 2012||1,299||-|
|Panasonic GH2«||4.9 in||3.5 in||3.0 in||15.6 oz||330||n||Sep 2010||1,499||-|
|Olympus E-M5 II« »||4.9 in||3.3 in||1.8 in||16.5 oz||310||Y||Feb 2015||1,099|
|Olympus E-M1« »||5.1 in||3.7 in||2.5 in||17.5 oz||350||Y||Sep 2013||1,399||-|
|Olympus E-M5« »||4.8 in||3.5 in||1.7 in||15.0 oz||360||Y||Feb 2012||1,299||-|
|Panasonic G85« »||5.0 in||3.5 in||2.9 in||17.8 oz||330||Y||Sep 2016||899|
|Panasonic GX8« »||5.2 in||3.1 in||2.5 in||17.2 oz||330||Y||Jul 2015||1,199||-|
|Panasonic GH4« »||5.2 in||3.7 in||3.3 in||19.8 oz||500||Y||Feb 2014||1,499||-|
|Panasonic GM5« »||3.9 in||2.4 in||1.4 in||7.4 oz||220||n||Sep 2014||749||-|
|Panasonic G6« »||4.8 in||3.3 in||2.8 in||13.8 oz||340||n||Apr 2013||599||-|
|Panasonic GM1« »||3.9 in||2.2 in||1.2 in||7.2 oz||230||n||Oct 2013||749||-|
|Panasonic G3« »||4.5 in||3.3 in||1.9 in||11.9 oz||270||n||May 2011||599||-|
|Panasonic GX1« »||4.6 in||2.7 in||1.5 in||11.2 oz||320||n||Nov 2011||949||-|
|Panasonic G2« »||4.9 in||3.3 in||2.9 in||15.1 oz||360||n||Mar 2010||599||-|
|Panasonic GH1« »||4.9 in||3.5 in||1.8 in||13.6 oz||300||n||Mar 2009||1,499||-|
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 GH3 was launched at a somewhat lower price (by 13 percent) than the GH2, 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 GH3 vs Panasonic GH2
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. 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.
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 GH3 and the GH2 have the same pixel density, as well as the same pixel size. It should, however, be noted that the GH3 is a somewhat more recent model (by 1 year and 11 months) than the GH2, and its sensor might have benefitted from technological advances during this time.
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 GH3 provides substantially higher image quality than the GH2, with an overall score that is 11 points higher. This advantage is based on 1.5 bits higher color depth, 1.1 EV in additional dynamic range, and 0.3 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Panasonic GH3»||Four Thirds||15.9||4608||3456||1080/60p||22.7||12.4||812||71|
|Panasonic GH2«||Four Thirds||15.9||4608||3456||1080/60i||21.2||11.3||655||60|
|Olympus E-M5 II« »||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|Olympus E-M1« »||Four Thirds||15.9||4608||3456||1080/30p||23.0||12.7||757||73|
|Olympus E-M5« »||Four Thirds||15.9||4608||3456||1080/60i||22.8||12.3||826||71|
|Panasonic G85« »||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|Panasonic GX8« »||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|Panasonic GH4« »||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|Panasonic GM5« »||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|Panasonic G6« »||Four Thirds||15.9||4608||3456||1080/60p||21.3||11.5||639||61|
|Panasonic GM1« »||Four Thirds||15.8||4592||3448||1080/60i||22.3||11.7||660||66|
|Panasonic G3« »||Four Thirds||15.8||4592||3448||1080/60i||21.0||10.6||667||56|
|Panasonic GX1« »||Four Thirds||15.8||4592||3448||1080/60p||20.8||10.6||703||55|
|Panasonic G2« »||Four Thirds||12.0||4000||3000||720/30p||21.2||10.3||493||53|
|Panasonic GH1« »||Four Thirds||12.0||4000||3000||1080/24p||21.6||11.6||772||64|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the GH3 provides a higher frame rate than the GH2. It can shoot video footage at 1080/60p, while the GH2 is limited to 1080/60i.
Feature comparison: Panasonic GH3 vs Panasonic GH2
Beyond body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the GH3 offers a higher resolution than the one in the GH2 (1746k vs 1534k dots). The adjacent table lists some of the other core features of the Panasonic GH3 and Panasonic GH2 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.
|Olympus E-M5 II« »||2360||n||3.0||1037||swivel||Y||8000||10.0||n||Y|
|Olympus E-M1« »||2360||n||3.0||1037||tilting||Y||8000||10.0||n||Y|
|Olympus E-M5« »||1440||n||3.0||610||tilting||Y||4000||9.0||n||Y|
|Panasonic G85« »||2360||n||3.0||1040||swivel||Y||4000||9.0||Y||Y|
|Panasonic GX8« »||2360||n||3.0||1040||swivel||Y||8000||10.0||n||Y|
|Panasonic GH4« »||2359||n||3.0||1036||swivel||Y||8000||12.0||Y||n|
|Panasonic GM5« »||1166||n||3.0||921||fixed||Y||500||5.8||n||n|
|Panasonic G6« »||1440||n||3.0||1036||swivel||Y||4000||7.0||Y||n|
|Panasonic GM1« »||-||n||3.0||1036||fixed||Y||500||5.0||Y||n|
|Panasonic G3« »||1440||n||3.0||460||swivel||Y||4000||4.0||Y||n|
|Panasonic GX1« »||-||n||3.0||460||fixed||Y||4000||4.2||Y||n|
|Panasonic G2« »||1440||n||3.0||460||swivel||Y||4000||2.6||Y||n|
|Panasonic GH1« »||1440||n||3.0||460||swivel||n||4000||3.0||Y||n|
Both the GH3 and the GH2 have been discontinued, but can regularly be found used on eBay. The GH2 was replaced by the Panasonic GH3, while the GH3 was followed by the Panasonic GH4.
Review summary: Panasonic GH3 vs Panasonic GH2
So what is the bottom line? Is the Panasonic GH3 better than the Panasonic GH2 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Panasonic Lumix DMC-GH3:
- Better image quality: Scores substantially higher (11 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.5 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1.1 EV of extra DR).
- Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
- More detailed viewfinder: Has higher resolution electronic viewfinder (1746k vs 1534k dots).
- More detailed LCD: Has a higher resolution rear screen (614k vs 460k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (6 vs 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (540 versus 330) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- More affordable: Was introduced into a lower priced segment (13 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 1 year and 11 months after the GH2).
Arguments in favor of the Panasonic Lumix DMC-GH2:
- Less heavy: Has a lower weight (by 108g or 20 percent) and is thus easier to take along.
- More heavily discounted: Has been on the market for longer (launched in September 2010).
If the count of individual advantages (bullet points above) is taken as a guide, the GH3 is the clear winner of the match-up (12 : 2 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the GH3 and the GH2 in practical situations. 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 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 GH3»||HiRec||79/100||4.5/5||5/5||4.5/5||Sep 2012||1,299||-|
|Panasonic GH2«||HiRec||79/100||4.5/5||4.5/5||5/5||Sep 2010||1,499||-|
|Olympus E-M5 II« »||HiRec||81/100||5/5||4.5/5||5/5||Feb 2015||1,099|
|Olympus E-M1« »||HiRec||84/100||4.5/5||4.5/5||4.5/5||Sep 2013||1,399||-|
|Olympus E-M5« »||HiRec||80/100||4.5/5||5/5||5/5||Feb 2012||1,299||-|
|Panasonic G85« »||HiRec||84/100||5/5||4.5/5||4.5/5||Sep 2016||899|
|Panasonic GX8« »||Rec||82/100||4.5/5||5/5||4.5/5||Jul 2015||1,199||-|
|Panasonic GH4« »||HiRec||85/100||5/5||5/5||5/5||Feb 2014||1,499||-|
|Panasonic GM5« »||Rec||77/100||5/5||5/5||4.5/5||Sep 2014||749||-|
|Panasonic G6« »||HiRec||-||5/5||-||4.5/5||Apr 2013||599||-|
|Panasonic GM1« »||Rec||78/100||5/5||4.5/5||4.5/5||Oct 2013||749||-|
|Panasonic G3« »||HiRec||75/100||4.5/5||4.5/5||5/5||May 2011||599||-|
|Panasonic GX1« »||Rec||77/100||4.5/5||4.5/5||4.5/5||Nov 2011||949||-|
|Panasonic G2« »||-||72/100||4/5||4/5||4.5/5||Mar 2010||599||-|
|Panasonic GH1« »||HiRec||72/100||4.5/5||5/5||4.5/5||Mar 2009||1,499||-|
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. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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