Panasonic G1 vs Sony A900
The Panasonic Lumix DMC-G1 and the Sony Alpha A900 are two digital cameras that were officially introduced in September 2008. The G1 is a mirrorless interchangeable lens camera, while the A900 is a DSLR. The cameras are based on a Four Thirds (G1) and a full frame (A900) sensor. The Panasonic has a resolution of 12 megapixels, whereas the Sony provides 24.4 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-G1 and the Sony Alpha A900? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
The physical size and weight of the Panasonic G1 and the Sony A900 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A900 is considerably larger (75 percent) than the Panasonic G1. Moreover, the A900 is substantially heavier (149 percent) than the G1. It is noteworthy in this context that the A900 is splash and dust-proof, while the G1 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the G1 gets 410 shots out of its Panasonic DMW-BLB13 battery, while the A900 can take 880 images on a single charge of its Sony NP-FM500H power pack.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic G1 | 124 mm | 84 mm | 45 mm | 360 g | 410 | n | Sep 2008 | US$ 599 | ebay.com | |
2. | Sony A900 | 156 mm | 117 mm | 82 mm | 895 g | 880 | Y | Sep 2008 | US$ 2 999 | ebay.com | |
3. | Canon 5D Mark II | 152 mm | 114 mm | 75 mm | 850 g | 850 | Y | Sep 2008 | US$ 3 499 | ebay.com | |
4. | Panasonic G2 | 124 mm | 84 mm | 74 mm | 428 g | 360 | n | Mar 2010 | US$ 599 | ebay.com | |
5. | Panasonic G3 | 115 mm | 84 mm | 47 mm | 336 g | 270 | n | May 2011 | US$ 599 | ebay.com | |
6. | Panasonic G6 | 122 mm | 85 mm | 71 mm | 390 g | 340 | n | Apr 2013 | US$ 599 | ebay.com | |
7. | Panasonic G10 | 124 mm | 84 mm | 74 mm | 388 g | 380 | n | Mar 2010 | US$ 499 | ebay.com | |
8. | Panasonic GF1 | 119 mm | 71 mm | 36 mm | 385 g | 380 | n | Sep 2009 | US$ 749 | ebay.com | |
9. | Panasonic GF2 | 113 mm | 68 mm | 33 mm | 310 g | 300 | n | Nov 2010 | US$ 549 | ebay.com | |
10. | Panasonic GF3 | 108 mm | 67 mm | 32 mm | 264 g | 300 | n | Jun 2011 | US$ 549 | ebay.com | |
11. | Panasonic GF5 | 108 mm | 67 mm | 37 mm | 267 g | 360 | n | Apr 2012 | US$ 499 | ebay.com | |
12. | Panasonic GF6 | 111 mm | 65 mm | 38 mm | 323 g | 340 | n | Apr 2013 | US$ 499 | ebay.com | |
13. | Panasonic GH1 | 124 mm | 90 mm | 45 mm | 385 g | 300 | n | Mar 2009 | US$ 899 | ebay.com | |
14. | Panasonic S1 | 149 mm | 110 mm | 97 mm | 1017 g | 400 | Y | Feb 2019 | US$ 2 499 | amazon.com | |
15. | Sony A99 | 147 mm | 111 mm | 78 mm | 812 g | 500 | Y | Sep 2012 | US$ 2 799 | ebay.com | |
16. | Sony A99 II | 143 mm | 104 mm | 76 mm | 849 g | 490 | Y | Sep 2016 | US$ 3 199 | ebay.com | |
17. | Sony A850 | 156 mm | 117 mm | 82 mm | 895 g | 880 | Y | Aug 2009 | US$ 1 999 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G1 was launched at a markedly lower price (by 80 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.
Sensor comparison
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. 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.
Of the two cameras under consideration, the Panasonic G1 features a Four Thirds sensor and the Sony A900 a full frame sensor. The sensor area in the A900 is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the G1 has a native 4:3 aspect ratio, while the one in the A900 offers a 3:2 aspect.
With 24.4MP, the A900 offers a higher resolution than the G1 (12MP), but the A900 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.33μm for the G1) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.
The resolution advantage of the Sony A900 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A900 for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inches or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 cm. The corresponding values for the Panasonic G1 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.
The Panasonic Lumix DMC-G1 has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Sony Alpha A900 are ISO 200 to ISO 3200, with the possibility to increase the ISO range to 100-6400.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the A900 offers substantially better image quality than the G1 (overall score 26 points higher). The advantage is based on 2.6 bits higher color depth, 2 EV in additional dynamic range, and 1.6 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.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic G1 | Four Thirds | 12.0 | 4000 | 3000 | none | 21.1 | 10.3 | 463 | 53 | |
2. | Sony A900 | Full Frame | 24.4 | 6048 | 4032 | none | 23.7 | 12.3 | 1431 | 79 | |
3. | Canon 5D Mark II | Full Frame | 21.0 | 5616 | 3744 | 1080/30p | 23.7 | 11.9 | 1815 | 79 | |
4. | Panasonic G2 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.3 | 493 | 53 | |
5. | Panasonic G3 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 21.0 | 10.6 | 667 | 56 | |
6. | Panasonic G6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.3 | 11.5 | 639 | 61 | |
7. | Panasonic G10 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.1 | 411 | 52 | |
8. | Panasonic GF1 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.3 | 513 | 54 | |
9. | Panasonic GF2 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 21.2 | 10.3 | 506 | 54 | |
10. | Panasonic GF3 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 20.6 | 10.1 | 459 | 50 | |
11. | Panasonic GF5 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 20.5 | 10.0 | 573 | 50 | |
12. | Panasonic GF6 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60i | 20.7 | 10.6 | 622 | 54 | |
13. | Panasonic GH1 | Four Thirds | 12.0 | 4000 | 3000 | 1080/24p | 21.6 | 11.6 | 772 | 64 | |
14. | Panasonic S1 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.2 | 14.5 | 3333 | 95 | |
15. | Sony A99 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 14.0 | 1555 | 89 | |
16. | Sony A99 II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 25.4 | 13.4 | 2317 | 92 | |
17. | Sony A850 | Full Frame | 24.4 | 6048 | 4032 | none | 23.8 | 12.2 | 1415 | 79 |
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the G1 has an electronic viewfinder (1440k 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A900 has a higher magnification than the one of the G1 (0.74x vs 0.70x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Panasonic G1 and Sony A900 along with similar information for a selection of comparators.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic G1 | 1440 | n | 3.0 / 460 | swivel | n | 1/4000s | 3.0/s | Y | n | |
2. | Sony A900 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 5.0/s | n | Y | |
3. | Canon 5D Mark II | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 3.9/s | n | n | |
4. | Panasonic G2 | 1440 | n | 3.0 / 460 | swivel | Y | 1/4000s | 2.6/s | Y | n | |
5. | Panasonic G3 | 1440 | n | 3.0 / 460 | swivel | Y | 1/4000s | 4.0/s | Y | n | |
6. | Panasonic G6 | 1440 | n | 3.0 / 1036 | swivel | Y | 1/4000s | 7.0/s | Y | n | |
7. | Panasonic G10 | 202 | n | 3.0 / 460 | fixed | n | 1/4000s | 2.6/s | Y | n | |
8. | Panasonic GF1 | optional | n | 3.0 / 460 | fixed | n | 1/4000s | 3.0/s | Y | n | |
9. | Panasonic GF2 | optional | n | 3.0 / 460 | fixed | Y | 1/4000s | 2.6/s | Y | n | |
10. | Panasonic GF3 | none | n | 3.0 / 460 | fixed | Y | 1/4000s | 3.2/s | Y | n | |
11. | Panasonic GF5 | none | n | 3.0 / 920 | fixed | Y | 1/4000s | 4.0/s | Y | n | |
12. | Panasonic GF6 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 4.2/s | Y | n | |
13. | Panasonic GH1 | 1440 | n | 3.0 / 460 | swivel | n | 1/4000s | 3.0/s | Y | n | |
14. | Panasonic S1 | 5760 | Y | 3.2 / 2100 | full-flex | Y | 1/8000s | 9.0/s | n | Y | |
15. | Sony A99 | 2359 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 6.0/s | n | Y | |
16. | Sony A99 II | 2400 | Y | 3.0 / 1229 | full-flex | n | 1/8000s | 12.0/s | n | Y | |
17. | Sony A850 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 3.0/s | n | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The G1 has one, while the A900 does not. While the built-in flash of the G1 is not very powerful, it can at times be useful as a fill-in light.
The G1 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A900 does not have a selfie-screen.The G1 writes its imaging data to SDHC cards, while the A900 uses Compact Flash or Memory Stick PRO Duo cards. The A900 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G1 only has one slot.
Connectivity comparison
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Panasonic Lumix DMC-G1 and Sony Alpha A900 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic G1 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
2. | Sony A900 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
3. | Canon 5D Mark II | Y | mono / mono | Y | - | mini | 2.0 | - | - | - | |
4. | Panasonic G2 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
5. | Panasonic G3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
6. | Panasonic G6 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
7. | Panasonic G10 | Y | mono / - | - | - | mini | 2.0 | - | - | - | |
8. | Panasonic GF1 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
9. | Panasonic GF2 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
10. | Panasonic GF3 | - | stereo / mono | - | - | mini | 2.0 | - | - | - | |
11. | Panasonic GF5 | - | stereo / mono | - | - | mini | 2.0 | - | - | - | |
12. | Panasonic GF6 | - | stereo / mono | - | - | mini | 2.0 | Y | Y | - | |
13. | Panasonic GH1 | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
14. | Panasonic S1 | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y | |
15. | Sony A99 | Y | stereo / mono | Y | Y | mini | 2.0 | - | - | - | |
16. | Sony A99 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | Y | |
17. | Sony A850 | Y | - / - | - | - | mini | 2.0 | - | - | - |
Studio photographers will appreciate that the Sony A900 (unlike the G1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the G1 and the A900 have been discontinued, but can regularly be found used on ebay. The A900 was replaced by the Sony A99, while the G1 was followed by the Panasonic G2. Further information on the features and operation of the G1 and A900 can be found, respectively, in the Panasonic G1 Manual (free pdf) or the online Sony A900 Manual.
Review summary
So how do things add up? Is there a clear favorite between the Panasonic G1 and the Sony A900? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Panasonic Lumix DMC-G1:
- More framing info: Has an electronic viewfinder that displays shooting data.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (124x84mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 535g or 60 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (80 percent cheaper at launch).
Advantages of the Sony Alpha A900:
- More detail: Has more megapixels (24.4 vs 12MP), which boosts linear resolution by 45%.
- Better image quality: Scores substantially higher (26 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.6 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.6 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.70x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (922k vs 460k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (880 versus 410) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
If the count of individual advantages (bullet points above) is taken as a guide, the A900 is the clear winner of the contest (16 : 8 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. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Panasonic G1 and the Sony A900 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.
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 G1 or the A900 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.
Expert reviews
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Panasonic G1 | .. | + + | .. | 70/100 | 4/5 | 4.5/5 | Sep 2008 | US$ 599 | ebay.com | |
2. | Sony A900 | .. | + + | .. | + + | 4.5/5 | 5/5 | Sep 2008 | US$ 2 999 | ebay.com | |
3. | Canon 5D Mark II | 4/5 | 91/100 | .. | 79/100 | 4/5 | .. | Sep 2008 | US$ 3 499 | ebay.com | |
4. | Panasonic G2 | .. | .. | .. | 72/100 | 4/5 | 4.5/5 | Mar 2010 | US$ 599 | ebay.com | |
5. | Panasonic G3 | 3/5 | + + | .. | 75/100 | 4.5/5 | 5/5 | May 2011 | US$ 599 | ebay.com | |
6. | Panasonic G6 | 4/5 | + + | .. | .. | 5/5 | 4.5/5 | Apr 2013 | US$ 599 | ebay.com | |
7. | Panasonic G10 | 3/5 | .. | .. | 70/100 | 4/5 | 4/5 | Mar 2010 | US$ 499 | ebay.com | |
8. | Panasonic GF1 | .. | 85/100 | .. | 69/100 | 4.5/5 | 4.5/5 | Sep 2009 | US$ 749 | ebay.com | |
9. | Panasonic GF2 | 3/5 | 82/100 | .. | 70/100 | 4.5/5 | 4.5/5 | Nov 2010 | US$ 549 | ebay.com | |
10. | Panasonic GF3 | 3/5 | 82/100 | .. | 71/100 | 4.5/5 | 4/5 | Jun 2011 | US$ 549 | ebay.com | |
11. | Panasonic GF5 | 3/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Apr 2012 | US$ 499 | ebay.com | |
12. | Panasonic GF6 | .. | + + | .. | .. | 4.5/5 | 4.5/5 | Apr 2013 | US$ 499 | ebay.com | |
13. | Panasonic GH1 | .. | + + | .. | 72/100 | 4.5/5 | 4.5/5 | Mar 2009 | US$ 899 | ebay.com | |
14. | Panasonic S1 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4/5 | Feb 2019 | US$ 2 499 | amazon.com | |
15. | Sony A99 | 5/5 | .. | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2012 | US$ 2 799 | ebay.com | |
16. | Sony A99 II | .. | .. | 4.5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | US$ 3 199 | ebay.com | |
17. | Sony A850 | 3/5 | .. | .. | 75/100 | .. | 4.5/5 | Aug 2009 | US$ 1 999 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. 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.
- Canon 1D Mark III vs Sony A900
- Canon 1Ds vs Panasonic G1
- Canon 500D vs Panasonic G1
- Canon 5D Mark III vs Sony A900
- Canon 6D Mark II vs Sony A900
- Fujifilm X-T100 vs Panasonic G1
- Nikon 1 J5 vs Panasonic G1
- Nikon D5100 vs Panasonic G1
- Nikon P900 vs Sony A900
- Olympus E-M10 IV vs Sony A900
- Panasonic G1 vs Sony NEX-3N
- Panasonic G95 vs Sony A900
Specifications: Panasonic G1 vs Sony A900
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Panasonic G1 | Sony A900 |
---|---|---|
Camera Type | Mirrorless system camera | Digital single lens reflex |
Camera Lens | Micro Four Thirds lenses | Sony A mount lenses |
Launch Date | September 2008 | September 2008 |
Launch Price | USD 599 | USD 2,999 |
Sensor Specs | Panasonic G1 | Sony A900 |
Sensor Technology | CMOS | CMOS |
Sensor Format | Four Thirds Sensor | Full Frame Sensor |
Sensor Size | 17.3 x 13.0 mm | 35.9 x 24.0 mm |
Sensor Area | 224.9 mm2 | 861.6 mm2 |
Sensor Diagonal | 21.6 mm | 43.2 mm |
Crop Factor | 2.0x | 1.0x |
Sensor Resolution | 12 Megapixels | 24.4 Megapixels |
Image Resolution | 4000 x 3000 pixels | 6048 x 4032 pixels |
Pixel Pitch | 4.33 μm | 5.94 μm |
Pixel Density | 5.34 MP/cm2 | 2.83 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | no Video | no Video |
ISO Setting | 100 - 1,600 ISO | 200 - 3,200 ISO |
ISO Boost | 100 - 3,200 ISO | 100 - 6,400 ISO |
Image Processor | Venus HD | BIONZ |
DXO Sensor Quality (score) | 53 | 79 |
DXO Color Depth (bits) | 21.1 | 23.7 |
DXO Dynamic Range (EV) | 10.3 | 12.3 |
DXO Low Light (ISO) | 463 | 1431 |
Screen Specs | Panasonic G1 | Sony A900 |
Viewfinder Type | Electronic viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.70x | 0.74x |
Viewfinder Resolution | 1440k dots | |
Top-Level Screen | no Top Display | Control Panel |
LCD Framing | Live View | |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 460k dots | 922k dots |
LCD Attachment | Swivel screen | Fixed screen |
Shooting Specs | Panasonic G1 | Sony A900 |
Focus System | Contrast-detect AF | Phase-detect AF |
Continuous Shooting | 3 shutter flaps/s | 5 shutter flaps/s |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDHC cards | CF or MS cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
Connectivity Specs | Panasonic G1 | Sony A900 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | mini HDMI |
Wifi Support | no Wifi | no Wifi |
Body Specs | Panasonic G1 | Sony A900 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Panasonic DMW-BLB13 | Sony NP-FM500H |
Battery Life (CIPA) | 410 shots per charge | 880 shots per charge |
Body Dimensions |
124 x 84 x 45 mm (4.9 x 3.3 x 1.8 in) |
156 x 117 x 82 mm (6.1 x 4.6 x 3.2 in) |
Camera Weight | 360 g (12.7 oz) | 895 g (31.6 oz) |
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