Sony A900 versus Panasonic GH5
The Sony Alpha A900 and the Panasonic Lumix DC-GH5 are two digital cameras that were revealed to the public, respectively, in September 2008 and January 2017. The A900 is a DSLR, while the GH5 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (A900) and a Four Thirds (GH5) sensor. The Sony has a resolution of 24.4 megapixel, whereas the Panasonic provides 20.2 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: Sony A900 vs Panasonic GH5
The physical size and weight of the Sony A900 and the Panasonic GH5 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 side – the A900 – represents the basis for the calculations 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 GH5 is notably smaller (25 percent) than the Sony A900. Moreover, the GH5 is markedly lighter (19 percent) than the A900. 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. Hence, you might want to study the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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|
|Sony A900»||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Sep 2008||2,999||-|
|Panasonic GH5«||5.5 in||3.9 in||3.4 in||25.6 oz||410||Y||Jan 2017||1,999|
|Canon 5D Mark II« »||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499||-|
|Nikon D500« »||5.8 in||4.5 in||3.2 in||30.3 oz||1240||Y||Jan 2016||1,999|
|Olympus E-M1 II« »||5.3 in||3.6 in||2.6 in||20.2 oz||440||Y||Sep 2016||1,999|
|Panasonic G9« »||5.4 in||3.8 in||3.6 in||23.2 oz||400||Y||Nov 2017||1,699|
|Panasonic G85« »||5.0 in||3.5 in||2.9 in||17.8 oz||330||Y||Sep 2016||899|
|Panasonic GH4« »||5.2 in||3.7 in||3.3 in||19.8 oz||500||Y||Feb 2014||1,499||-|
|Sony A9« »||5.0 in||3.8 in||2.5 in||23.7 oz||650||Y||Apr 2017||4,499|
|Sony A99 II« »||5.6 in||4.1 in||3.0 in||29.9 oz||490||Y||Sep 2016||3,199|
|Sony A6500« »||4.7 in||2.6 in||2.1 in||16.0 oz||350||Y||Oct 2016||1,399|
|Sony RX10 III« »||5.2 in||3.7 in||5.0 in||37.1 oz||420||Y||Mar 2016||1,499||-|
|Sony A7S II« »||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999|
|Sony A7 II« »||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999||-|
|Sony A99« »||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799||-|
|Sony A77« »||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,999||-|
|Sony A850« »||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Aug 2009||1,999||-|
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 GH5 was launched at a markedly lower price (by 33 percent) than the A900, 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: Sony A900 vs Panasonic GH5
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 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Sony A900 features a full frame sensor and the Panasonic GH5 a Four Thirds sensor. The sensor area in the GH5 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the A900 has a native 3:2 aspect ratio, while the one in the GH5 offers a 4:3 aspect.
With 24.4MP, the A900 offers a higher resolution than the GH5 (20.2MP), but the A900 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 3.34μm for the GH5) due to its larger sensor. However, the GH5 is a somewhat more recent model (by 8 years and 3 months) than the A900, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the GH5 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Sony A900»||Full Frame||24.4||6048||4032||-||23.7||12.3||1431||79|
|Panasonic GH5«||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Canon 5D Mark II« »||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|Nikon D500« »||APS-C||20.7||5568||3712||4K/30p||24.0||14.0||1324||83|
|Olympus E-M1 II« »||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|Panasonic G9« »||Four Thirds||20.2||5184||3888||4K/60p||-||-||-||-|
|Panasonic G85« »||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|Panasonic GH4« »||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
|Sony A9« »||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|Sony A99 II« »||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A6500« »||APS-C||24.0||6000||4000||4K/30p||24.5||13.7||1405||85|
|Sony RX10 III« »||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|Sony A7S II« »||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A99« »||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
|Sony A77« »||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78|
|Sony A850« »||Full Frame||24.4||6048||4032||-||23.8||12.2||1415||79|
Many modern cameras cannot only take still pictures, but also record videos. The GH5 indeed provides for movie recording, while the A900 does not. The highest resolution format that the GH5 can use is 4K/60p.
Feature comparison: Sony A900 vs Panasonic GH5
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the GH5 has an electronic viewfinder (3680k dots), while the A900 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The following table reports on some other key feature differences and similarities of the Sony A900, the Panasonic GH5, and comparable cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Canon 5D Mark II« »||optical||Y||3.0||920||fixed||n||8000||3.9||n||n|
|Nikon D500« »||optical||Y||3.2||2359||tilting||Y||8000||10.0||n||n|
|Olympus E-M1 II« »||2360||n||3.0||1037||swivel||Y||8000||18.0||n||Y|
|Panasonic G9« »||3680||Y||3.0||1040||swivel||Y||8000||20.0||n||Y|
|Panasonic G85« »||2360||n||3.0||1040||swivel||Y||4000||9.0||Y||Y|
|Panasonic GH4« »||2359||n||3.0||1036||swivel||Y||8000||12.0||Y||n|
|Sony A9« »||3686||n||3.0||1440||tilting||Y||8000||20.0||n||Y|
|Sony A99 II« »||2400||Y||3.0||1229||full-flex||n||8000||12.0||n||Y|
|Sony A6500« »||2300||n||3.0||922||tilting||Y||4000||11.0||Y||Y|
|Sony RX10 III« »||2359||Y||3.0||1229||tilting||n||2000||14.0||Y||Y|
|Sony A7S II« »||2400||n||3.0||1229||tilting||n||8000||5.0||n||Y|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||8000||5.0||n||Y|
|Sony A99« »||2359||Y||3.0||1229||full-flex||n||8000||6.0||n||Y|
|Sony A77« »||2359||Y||3.0||921||full-flex||n||8000||12.0||Y||Y|
|Sony A850« »||optical||Y||3.0||922||fixed||n||8000||3.0||n||Y|
The GH5 is a current model that online retailers, such as amazon, will have in stock. In contrast, the A900 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A900 was succeeded by the Sony A99.
Review summary: Sony A900 vs Panasonic GH5
So what conclusions can be drawn? Which of the two cameras – the Sony A900 or the Panasonic GH5 – has the upper hand? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Sony Alpha A900:
- More detail: Offers more megapixels (24.4 vs 20.2MP) with a 12% higher linear resolution.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better low-light sensitivity: Requires less light for good images (0.8 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Easier setting verification: Has an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (880 versus 410) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in September 2008).
Reasons to prefer the Panasonic Lumix DC-GH5:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- More dynamic range: Captures a broader range of light and dark details (0.7 EV of extra DR).
- Broader imaging potential: Can capture not only stills but also 4K/60p video.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1620k vs 922k dots).
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (139x98mm vs 156x117mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 170g or 19 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
- More modern: Reflects 8 years and 3 months of technical progress since the A900 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the GH5 is the clear winner of the contest (14 : 7 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the A900 or the GH5 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 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 (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.
|Sony A900»||HiRec||HiRec||4.5/5||4/5||5/5||Sep 2008||2,999||-|
|Panasonic GH5«||HiRec||85/100||4.5/5||5/5||5/5||Jan 2017||1,999|
|Canon 5D Mark II« »||91/100||79/100||4/5||5/5||-||Sep 2008||3,499||-|
|Nikon D500« »||HiRec||91/100||4.5/5||5/5||5/5||Jan 2016||1,999|
|Olympus E-M1 II« »||HiRec||85/100||4.5/5||5/5||4.5/5||Sep 2016||1,999|
|Panasonic G9« »||HiRec||85/100||5/5||-||5/5||Nov 2017||1,699|
|Panasonic G85« »||HiRec||84/100||5/5||4.5/5||4.5/5||Sep 2016||899|
|Panasonic GH4« »||HiRec||85/100||5/5||5/5||5/5||Feb 2014||1,499||-|
|Sony A9« »||HiRec||89/100||5/5||5/5||5/5||Apr 2017||4,499|
|Sony A99 II« »||-||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199|
|Sony A6500« »||HiRec||85/100||4.5/5||5/5||4.5/5||Oct 2016||1,399|
|Sony RX10 III« »||Rec||84/100||4.5/5||4.5/5||4.5/5||Mar 2016||1,499||-|
|Sony A7S II« »||Rec||-||4.5/5||5/5||5/5||Sep 2015||2,999|
|Sony A7 II« »||Rec||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-|
|Sony A99« »||-||84/100||4.5/5||rev||4.5/5||Sep 2012||2,799||-|
|Sony A77« »||91/100||81/100||-||4.5/5||5/5||Aug 2011||1,999||-|
|Sony A850« »||-||75/100||-||4/5||4.5/5||Aug 2009||1,999||-|
The above review scores should be interpreted 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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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