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Panasonic G100 vs Sony A99

The Panasonic Lumix DC-G100 (called Panasonic G110 in some regions) and the Sony Alpha SLT-A99 are two digital cameras that were officially introduced, respectively, in June 2020 and September 2012. The G100 is a mirrorless interchangeable lens camera, while the A99 is a DSLR. The cameras are based on a Four Thirds (G100) and a full frame (A99) sensor. The Panasonic has a resolution of 20.2 megapixels, whereas the Sony provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Panasonic G100
versus
Sony A99
Panasonic G100   Sony A99
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Sony A mount lenses
20.2 MP – Four Thirds sensor 24 MP – Full Frame sensor
4K/30p Video 1080/60p Video
ISO 200-25,600 ISO 100-25,600
Electronic viewfinder (3680k dots) Electronic viewfinder (2359k dots)
3.0" LCD – 1840k dots 3.0" LCD – 1229k dots
Swivel touchscreen Fully flexible screen (no touchscreen)
10 shutter flaps per second 6 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
270 shots per battery charge500 shots per battery charge
116 x 83 x 54 mm, 352 g 147 x 111 x 78 mm, 812 g
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Check G100 price at
amazon.com
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Check A99 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-G100 and the Sony Alpha SLT-A99? 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.

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Body comparison

The physical size and weight of the Panasonic G100 and the Sony A99 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 width, height and depth measures are rounded to the nearest millimeter.

Size Panasonic G100 vs Sony A99
Compare G100 versus A99 top
Comparison G100 or A99 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A99 is considerably larger (69 percent) than the Panasonic G100. Moreover, the A99 is substantially heavier (131 percent) than the G100. It is noteworthy in this context that the A99 is splash and dust-proof, while the G100 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 G100 gets 270 shots out of its Panasonic DMW-BLG10 battery, while the A99 can take 500 images on a single charge of its Sony NP-FM500H power pack. The power pack in the G100 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic G100 116 mm 83 mm 54 mm 352 g 270 n Jun 2020 US$ 649 amazon.com
2.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 US$ 2 799ebay.com
3.
 
Panasonic G1 124 mm 84 mm 45 mm 360 g 410 n Sep 2008 US$ 599ebay.com
4.
 
Panasonic G2 124 mm 84 mm 74 mm 428 g 360 n Mar 2010 US$ 599ebay.com
5.
 
Panasonic G3 115 mm 84 mm 47 mm 336 g 270 n May 2011 US$ 599ebay.com
6.
 
Panasonic G5 120 mm 83 mm 71 mm 396 g 320 n Jul 2012 US$ 599ebay.com
7.
 
Panasonic G6 122 mm 85 mm 71 mm 390 g 340 n Apr 2013 US$ 599ebay.com
8.
 
Panasonic G7 125 mm 86 mm 77 mm 410 g 350 n May 2015 US$ 649ebay.com
9.
 
Panasonic G95 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 US$ 999ebay.com
10.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 n Sep 2009 US$ 749ebay.com
11.
 
Panasonic GF2 113 mm 68 mm 33 mm 310 g 300 n Nov 2010 US$ 549ebay.com
12.
 
Panasonic GX1 116 mm 68 mm 39 mm 318 g 320 n Nov 2011 US$ 699ebay.com
13.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 US$ 4 499 amazon.com
14.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 US$ 1 399ebay.com
15.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 US$ 3 199ebay.com
16.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 US$ 1 999ebay.com
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 US$ 2 999ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The G100 was launched at a markedly lower price (by 77 percent) than the A99, 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 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic G100 features a Four Thirds sensor and the Sony A99 a full frame sensor. The sensor area in the A99 is 279 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 G100 has a native 4:3 aspect ratio, while the one in the A99 offers a 3:2 aspect.

Panasonic G100 and Sony A99 sensor measures

With 24MP, the A99 offers a higher resolution than the G100 (20.2MP), but the A99 nevertheless has larger individual pixels (pixel pitch of 5.96μm versus 3.34μm for the G100) due to its larger sensor. However, the G100 is a much more recent model (by 7 years and 9 months) than the A99, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the G100 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A99 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A99 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Panasonic G100 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The Panasonic Lumix DC-G100 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Sony Alpha SLT-A99 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-25600.

In terms of underlying technology, the G100 is build around a Live MOS sensor, while the A99 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

G100 versus A99 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic G100 Four Thirds 20.2 5184 38884K/30p23.313.2139176
2.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
3.
 
Panasonic G1 Four Thirds 12.0 4000 3000none21.110.346353
4.
 
Panasonic G2 Four Thirds 12.0 4000 3000720/30p21.210.349353
5.
 
Panasonic G3 Four Thirds 15.8 4592 34481080/60i21.010.666756
6.
 
Panasonic G5 Four Thirds 15.9 4608 34561080/60p21.411.661861
7.
 
Panasonic G6 Four Thirds 15.9 4608 34561080/60p21.311.563961
8.
 
Panasonic G7 Four Thirds 15.8 4592 34484K/30p22.812.490471
9.
 
Panasonic G95 Four Thirds 20.2 5184 38884K/30p23.213.0127375
10.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
11.
 
Panasonic GF2 Four Thirds 12.0 4000 30001080/60i21.210.350654
12.
 
Panasonic GX1 Four Thirds 15.8 4592 34481080/60p20.810.670355
13.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
14.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
15.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
16.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
Note: DXO values in italics represent estimates based on sensor size and age.

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, but the G100 provides a higher video resolution than the A99. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the G100 offers a substantially higher resolution than the one in the A99 (3680k vs 2359k dots). The following table reports on some other key feature differences and similarities of the Panasonic G100, the Sony A99, and comparable cameras.

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Core Features
  empty 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 G1003680 n3.0 / 1840 swivel Y 1/500s 10.0/s Y n
2.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
3.
 
Panasonic G11440 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
4.
 
Panasonic G21440 n3.0 / 460 swivel Y 1/4000s 2.6/s Y n
5.
 
Panasonic G31440 n3.0 / 460 swivel Y 1/4000s 4.0/s Y n
6.
 
Panasonic G51440 n3.0 / 920 swivel Y 1/4000s 6.0/s Y n
7.
 
Panasonic G61440 n3.0 / 1036 swivel Y 1/4000s 7.0/s Y n
8.
 
Panasonic G72360 n3.0 / 1040 swivel Y 1/4000s 7.0/s Y n
9.
 
Panasonic G952360 n3.0 / 1240 swivel Y 1/4000s 9.0/s Y Y
10.
 
Panasonic GF1optional n3.0 / 460 fixed n 1/4000s 3.0/s Y n
11.
 
Panasonic GF2optional n3.0 / 460 fixed Y 1/4000s 2.6/s Y n
12.
 
Panasonic GX1optional n3.0 / 460 fixed Y 1/4000s 4.2/s Y n
13.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
14.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
15.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
16.
 
Sony A850optical Y3.0 / 922 fixed n 1/8000s 3.0/s n Y
17.
 
Sony A900optical Y3.0 / 922 fixed n 1/8000s 5.0/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 G100 has one, while the A99 does not. While the built-in flash of the G100 is not very powerful, it can at times be useful as a fill-in light.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the G100 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Panasonic G100 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The G100 writes its imaging data to SDXC cards, while the A99 uses SDXC or Memory Stick PRO Duo cards. The A99 features dual card slots, which can be very useful in case a memory card fails. In contrast, the G100 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 DC-G100 and Sony Alpha SLT-A99 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic G100Ystereo / monoYYmicro2.0Y-Y
2.
 
Sony A99Ystereo / monoYYmini2.0---
3.
 
Panasonic G1Y- / ---mini2.0---
4.
 
Panasonic G2Ystereo / mono--mini2.0---
5.
 
Panasonic G3Ystereo / mono--mini2.0---
6.
 
Panasonic G5Ystereo / mono--mini2.0---
7.
 
Panasonic G6Ystereo / monoY-mini2.0YY-
8.
 
Panasonic G7Ystereo / monoY-micro2.0Y--
9.
 
Panasonic G95Ystereo / monoYYmicro2.0Y-Y
10.
 
Panasonic GF1Ymono / mono--mini2.0---
11.
 
Panasonic GF2Ystereo / mono--mini2.0---
12.
 
Panasonic GX1Ystereo / mono--mini2.0---
13.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
14.
 
Sony A77Ystereo / monoY-mini2.0---
15.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
16.
 
Sony A850Y- / ---mini2.0---
17.
 
Sony A900Y- / ---mini2.0---

It is notable that the G100 offers wifi support, while the A99 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Sony A99 (unlike the G100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the A99 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The G100 is a recent model that features in the current product line-up of Panasonic. In contrast, the A99 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A99 was succeeded by the Sony A99. Further information on the features and operation of the G100 and A99 can be found, respectively, in the Panasonic G100 Manual (free pdf) or the online Sony A99 Manual.

Review summary

So what is the bottom line? Is the Panasonic G100 better than the Sony A99 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Panasonic Lumix DC-G100:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 2359k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.71x).
  • More detailed LCD: Has a higher resolution rear screen (1840k vs 1229k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (116x83mm vs 147x111mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 460g or 57 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (77 percent cheaper at launch).
  • More modern: Reflects 7 years and 9 months of technical progress since the A99 launch.

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Reasons to prefer the Sony Alpha SLT-A99:

  • More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
  • Longer lasting: Gets more shots (500 versus 270) 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.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • 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.
  • More heavily discounted: Has been around for much longer (launched in September 2012).

If the number of relative strengths (bullet points above) is taken as a guide, the G100 is the clear winner of the match-up (18 : 11 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. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

G100 18:11 A99

How about other alternatives? Do the specifications of the Panasonic G100 and the Sony A99 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the G100 or the A99 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 expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Panasonic G1004/5..4/578/1004/54/5 Jun 2020 US$ 649 amazon.com
2.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 US$ 2 799ebay.com
3.
 
Panasonic G1..+ +..70/1004/54.5/5 Sep 2008 US$ 599ebay.com
4.
 
Panasonic G2......72/1004/54.5/5 Mar 2010 US$ 599ebay.com
5.
 
Panasonic G33/5+ +..75/1004.5/55/5 May 2011 US$ 599ebay.com
6.
 
Panasonic G53/5+ +....4.5/54.5/5 Jul 2012 US$ 599ebay.com
7.
 
Panasonic G64/5+ +....5/54.5/5 Apr 2013 US$ 599ebay.com
8.
 
Panasonic G74/5+ +3.5/580/1005/54.5/5 May 2015 US$ 649ebay.com
9.
 
Panasonic G954.5/5+4.5/583/1004.5/54.5/5 Apr 2019 US$ 999ebay.com
10.
 
Panasonic GF1..85/100..69/1004.5/54.5/5 Sep 2009 US$ 749ebay.com
11.
 
Panasonic GF23/582/100..70/1004.5/54.5/5 Nov 2010 US$ 549ebay.com
12.
 
Panasonic GX13/5+..77/1004.5/54.5/5 Nov 2011 US$ 699ebay.com
13.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 US$ 4 499 amazon.com
14.
 
Sony A775/591/100..81/100..5/5 Aug 2011 US$ 1 399ebay.com
15.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 US$ 3 199ebay.com
16.
 
Sony A8503/5....75/100..4.5/5 Aug 2009 US$ 1 999ebay.com
17.
 
Sony A900..+ +..+ +4.5/55/5 Sep 2008 US$ 2 999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Check G100 price at
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Check A99 offers at
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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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Panasonic G100 vs Sony A99

    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 Specifications
    Camera Model Panasonic G100 Sony A99
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Sony A mount lenses
    Launch Date June 2020 September 2012
    Launch Price USD 649 USD 2,799
    Sensor Specs Panasonic G100 Sony A99
    Sensor Technology Live MOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.8 x 23.8 mm
    Sensor Area 224.9 mm2 852.04 mm2
    Sensor Diagonal 21.6 mm 43 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 24 Megapixels
    Image Resolution 5184 x 3888 pixels 6000 x 4000 pixels
    Pixel Pitch 3.34 μm 5.96 μm
    Pixel Density 8.96 MP/cm2 2.82 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 200 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 50 - 25,600 ISO
    Image Processor Venus BIONZ X
    DXO Sensor Quality (score) .. 89
    DXO Color Depth (bits) .. 25.0
    DXO Dynamic Range (EV) .. 14.0
    DXO Low Light (ISO) .. 1555
    Screen Specs Panasonic G100 Sony A99
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.73x 0.71x
    Viewfinder Resolution 3680k dots 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1840k dots 1229k dots
    LCD Attachment Swivel screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic G100 Sony A99
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/500s 1/8000s
    Continuous Shooting 10 shutter flaps/s 6 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Panasonic G100 Sony A99
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Geotagging no internal GPS GPS built-in
    Body Specs Panasonic G100 Sony A99
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Panasonic DMW-BLG10 Sony NP-FM500H
    Battery Life (CIPA)270 shots per charge500 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 116 x 83 x 54 mm
    (4.6 x 3.3 x 2.1 in)
    147 x 111 x 78 mm
    (5.8 x 4.4 x 3.1 in)
    Camera Weight 352 g (12.4 oz) 812 g (28.6 oz)
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    Check G100 price at
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    Check A99 offers at
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