Panasonic G100 vs Sony A7R IIIA
The Panasonic Lumix DC-G100 (called Panasonic G110 in some regions) and the Sony Alpha A7R IIIA are two digital cameras that were officially introduced, respectively, in June 2020 and April 2021. Both the G100 and the A7R IIIA are mirrorless interchangeable lens cameras that are based on a Four Thirds (G100) and a full frame (A7R IIIA) sensor. The Panasonic has a resolution of 20.2 megapixels, whereas the Sony provides 42.2 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 DC-G100 and the Sony Alpha A7R IIIA? 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 G100 and the Sony A7R IIIA 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 A7R IIIA is notably larger (27 percent) than the Panasonic G100. Moreover, the A7R IIIA is substantially heavier (85 percent) than the G100. It is noteworthy in this context that the A7R IIIA 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (G100) and the Sony FE Lens Catalog (A7R IIIA). 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.
Concerning battery life, the G100 gets 270 shots out of its Panasonic DMW-BLG10 battery, while the A7R IIIA can take 650 images on a single charge of its Sony NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
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 A7R IIIA | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Apr 2021 | US$ 3 199 | amazon.com | |
3. | Panasonic G1 | 124 mm | 84 mm | 45 mm | 360 g | 410 | n | Sep 2008 | US$ 599 | 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 G5 | 120 mm | 83 mm | 71 mm | 396 g | 320 | n | Jul 2012 | US$ 599 | ebay.com | |
7. | Panasonic G6 | 122 mm | 85 mm | 71 mm | 390 g | 340 | n | Apr 2013 | US$ 599 | ebay.com | |
8. | Panasonic G7 | 125 mm | 86 mm | 77 mm | 410 g | 350 | n | May 2015 | US$ 649 | ebay.com | |
9. | Panasonic G95 | 130 mm | 94 mm | 77 mm | 536 g | 290 | Y | Apr 2019 | US$ 999 | ebay.com | |
10. | Panasonic GF1 | 119 mm | 71 mm | 36 mm | 385 g | 380 | n | Sep 2009 | US$ 749 | ebay.com | |
11. | Panasonic GF2 | 113 mm | 68 mm | 33 mm | 310 g | 300 | n | Nov 2010 | US$ 549 | ebay.com | |
12. | Panasonic GX1 | 116 mm | 68 mm | 39 mm | 318 g | 320 | n | Nov 2011 | US$ 699 | ebay.com | |
13. | Sony A1 | 129 mm | 97 mm | 81 mm | 737 g | 530 | Y | Jan 2021 | US$ 6 499 | amazon.com | |
14. | Sony A7R II | 127 mm | 96 mm | 60 mm | 625 g | 290 | Y | Jun 2015 | US$ 3 199 | ebay.com | |
15. | Sony A7R III | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Oct 2017 | US$ 3 199 | ebay.com | |
16. | Sony A7R IV | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Jul 2019 | US$ 3 499 | ebay.com | |
17. | Sony A7S III | 127 mm | 97 mm | 81 mm | 699 g | 600 | Y | Jul 2020 | US$ 3 499 | amazon.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 obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G100 was launched at a markedly lower price (by 80 percent) than the A7R IIIA, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 are more costly to manufacture and tend to 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 A7R IIIA a full frame sensor. The sensor area in the A7R IIIA 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 G100 has a native 4:3 aspect ratio, while the one in the A7R IIIA offers a 3:2 aspect.
With 42.2MP, the A7R IIIA offers a higher resolution than the G100 (20.2MP), but the A7R IIIA nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.34μm for the G100) due to its larger sensor. Moreover, the A7R IIIA is a somewhat more recent model (by 9 months) than the G100, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Sony A7R IIIA implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IIIA for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 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 A7R IIIA has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the G100, the A7R IIIA has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
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 A7R IIIA are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
In terms of underlying technology, the G100 is build around a Live MOS sensor, while the A7R IIIA uses a BSI-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.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
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 | 3888 | 4K/30p | 23.3 | 13.2 | 1391 | 76 | |
2. | Sony A7R IIIA | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
3. | Panasonic G1 | Four Thirds | 12.0 | 4000 | 3000 | none | 21.1 | 10.3 | 463 | 53 | |
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 G5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.4 | 11.6 | 618 | 61 | |
7. | Panasonic G6 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 21.3 | 11.5 | 639 | 61 | |
8. | Panasonic G7 | Four Thirds | 15.8 | 4592 | 3448 | 4K/30p | 22.8 | 12.4 | 904 | 71 | |
9. | Panasonic G95 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.2 | 13.0 | 1273 | 75 | |
10. | Panasonic GF1 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.3 | 513 | 54 | |
11. | Panasonic GF2 | Four Thirds | 12.0 | 4000 | 3000 | 1080/60i | 21.2 | 10.3 | 506 | 54 | |
12. | Panasonic GX1 | Four Thirds | 15.8 | 4592 | 3448 | 1080/60p | 20.8 | 10.6 | 703 | 55 | |
13. | Sony A1 | Full Frame | 49.8 | 8640 | 5760 | 8k/30p | 25.9 | 14.5 | 3163 | 98 | |
14. | Sony A7R II | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 13.9 | 3434 | 98 | |
15. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
16. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
17. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
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 can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (4K/30p).
Feature comparison
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 A7R IIIA offers a slightly higher resolution than the one in the G100 (3686k vs 3680k dots). The adjacent table lists some of the other core features of the Panasonic G100 and Sony A7R IIIA 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 G100 | 3680 | n | 3.0 / 1840 | swivel | Y | 1/500s | 10.0/s | Y | n | |
2. | Sony A7R IIIA | 3686 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
3. | Panasonic G1 | 1440 | n | 3.0 / 460 | swivel | n | 1/4000s | 3.0/s | Y | 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 G5 | 1440 | n | 3.0 / 920 | swivel | Y | 1/4000s | 6.0/s | Y | n | |
7. | Panasonic G6 | 1440 | n | 3.0 / 1036 | swivel | Y | 1/4000s | 7.0/s | Y | n | |
8. | Panasonic G7 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 7.0/s | Y | n | |
9. | Panasonic G95 | 2360 | n | 3.0 / 1240 | swivel | Y | 1/4000s | 9.0/s | Y | Y | |
10. | Panasonic GF1 | optional | n | 3.0 / 460 | fixed | n | 1/4000s | 3.0/s | Y | n | |
11. | Panasonic GF2 | optional | n | 3.0 / 460 | fixed | Y | 1/4000s | 2.6/s | Y | n | |
12. | Panasonic GX1 | optional | n | 3.0 / 460 | fixed | Y | 1/4000s | 4.2/s | Y | n | |
13. | Sony A1 | 9437 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
14. | Sony A7R II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
15. | Sony A7R III | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
16. | Sony A7R IV | 5760 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
17. | Sony A7S III | 9440 | n | 3.0 / 1440 | swivel | Y | 1/8000s | 10.0/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 A7R IIIA 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.
The G100 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 A7R IIIA does not have a selfie-screen.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, both cameras under consideration feature an 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 and the Sony A7R IIIA both have 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 A7R IIIA uses SDXC or Memory Stick PRO Duo cards. The A7R IIIA features dual card slots, which can be very useful in case a memory card fails. In contrast, the G100 only has one slot. The A7R IIIA supports UHS-II cards (on its first slot), while the G100 can use UHS-I cards.
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 A7R IIIA 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 G100 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | - | Y | |
2. | Sony A7R IIIA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
3. | Panasonic G1 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
4. | Panasonic G2 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
5. | Panasonic G3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
6. | Panasonic G5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
7. | Panasonic G6 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
8. | Panasonic G7 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
9. | Panasonic G95 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | - | Y | |
10. | Panasonic GF1 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
11. | Panasonic GF2 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
12. | Panasonic GX1 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
13. | Sony A1 | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
14. | Sony A7R II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
15. | Sony A7R III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
16. | Sony A7R IV | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
17. | Sony A7S III | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y |
Studio photographers will appreciate that the Sony A7R IIIA (unlike the G100) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the G100 and the A7R IIIA are recent models that are part of the current product line-up. The G100 replaced the earlier Panasonic G95, while the A7R IIIA followed on from the Sony A7R II. Further information on the features and operation of the G100 and A7R IIIA can be found, respectively, in the Panasonic G100 Manual (free pdf) or the online Sony A7R IIIA Manual.
Review summary
So what is the bottom line? Is the Panasonic G100 better than the Sony A7R IIIA or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Panasonic Lumix DC-G100:
- 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 (116x83mm vs 127x96mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 298g or 46 percent) and hence easier to carry around.
- 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).
- More heavily discounted: Has been on the market for longer (launched in June 2020).
Arguments in favor of the Sony Alpha A7R IIIA:
- More detail: Has more megapixels (42.2 vs 20.2MP), which boosts linear resolution by 48%.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.73x).
- More detailed LCD: Has a higher resolution rear screen (2340k vs 1840k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/500s) to freeze action.
- Longer lasting: Gets more shots (650 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.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- 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.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Was introduced somewhat (9 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the A7R IIIA is the clear winner of the contest (19 : 7 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 G100 and the Sony A7R IIIA place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G100 or the A7R IIIA. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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 G100 | 4/5 | .. | 4/5 | 78/100 | 4/5 | 4/5 | Jun 2020 | US$ 649 | amazon.com | |
2. | Sony A7R IIIA | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Apr 2021 | US$ 3 199 | amazon.com | |
3. | Panasonic G1 | .. | + + | .. | 70/100 | 4/5 | 4.5/5 | Sep 2008 | US$ 599 | 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 G5 | 3/5 | + + | .. | .. | 4.5/5 | 4.5/5 | Jul 2012 | US$ 599 | ebay.com | |
7. | Panasonic G6 | 4/5 | + + | .. | .. | 5/5 | 4.5/5 | Apr 2013 | US$ 599 | ebay.com | |
8. | Panasonic G7 | 4/5 | + + | 3.5/5 | 80/100 | 5/5 | 4.5/5 | May 2015 | US$ 649 | ebay.com | |
9. | Panasonic G95 | 4.5/5 | + | 4.5/5 | 83/100 | 4.5/5 | 4.5/5 | Apr 2019 | US$ 999 | ebay.com | |
10. | Panasonic GF1 | .. | 85/100 | .. | 69/100 | 4.5/5 | 4.5/5 | Sep 2009 | US$ 749 | ebay.com | |
11. | Panasonic GF2 | 3/5 | 82/100 | .. | 70/100 | 4.5/5 | 4.5/5 | Nov 2010 | US$ 549 | ebay.com | |
12. | Panasonic GX1 | 3/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Nov 2011 | US$ 699 | ebay.com | |
13. | Sony A1 | 5/5 | o | 4.5/5 | 93/100 | 4.5/5 | 5/5 | Jan 2021 | US$ 6 499 | amazon.com | |
14. | Sony A7R II | 5/5 | + + | 5/5 | 90/100 | 5/5 | 5/5 | Jun 2015 | US$ 3 199 | ebay.com | |
15. | Sony A7R III | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Oct 2017 | US$ 3 199 | ebay.com | |
16. | Sony A7R IV | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2019 | US$ 3 499 | ebay.com | |
17. | Sony A7S III | 4.5/5 | + + | 5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2020 | US$ 3 499 | amazon.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon R5 C vs Sony A7R IIIA
- Fujifilm X-H2 vs Panasonic G100
- Fujifilm X100VI vs Panasonic G100
- Hasselblad X1D II vs Sony A7R IIIA
- Nikon Coolpix A vs Panasonic G100
- Nikon Z30 vs Sony A7R IIIA
- Olympus E-PL7 vs Panasonic G100
- Panasonic G100 vs Panasonic GX7
- Panasonic G100 vs Panasonic S1
- Panasonic S5 II vs Sony A7R IIIA
- Panasonic TZ95 vs Sony A7R IIIA
- Sony A7C II vs Sony A7R IIIA
Specifications: Panasonic G100 vs Sony A7R IIIA
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 G100 | Sony A7R IIIA |
---|---|---|
Camera Type | Mirrorless system camera | Mirrorless system camera |
Camera Lens | Micro Four Thirds lenses | Sony E mount lenses |
Launch Date | June 2020 | April 2021 |
Launch Price | USD 649 | USD 3,199 |
Sensor Specs | Panasonic G100 | Sony A7R IIIA |
Sensor Technology | Live MOS | BSI-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 | 20.2 Megapixels | 42.2 Megapixels |
Image Resolution | 5184 x 3888 pixels | 7952 x 5304 pixels |
Pixel Pitch | 3.34 μm | 4.52 μm |
Pixel Density | 8.96 MP/cm2 | 4.90 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 4K/30p Video | 4K/30p Video |
ISO Setting | 200 - 25,600 ISO | 100 - 32,000 ISO |
ISO Boost | 100 - 25,600 ISO | 50 - 102,400 ISO |
Image Processor | Venus | BIONZ X |
DXO Sensor Quality (score) | .. | 100 |
DXO Color Depth (bits) | .. | 26.0 |
DXO Dynamic Range (EV) | .. | 14.7 |
DXO Low Light (ISO) | .. | 3523 |
Screen Specs | Panasonic G100 | Sony A7R IIIA |
Viewfinder Type | Electronic viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.73x | 0.78x |
Viewfinder Resolution | 3680k dots | 3686k dots |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1840k dots | 2340k dots |
LCD Attachment | Swivel screen | Tilting screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Panasonic G100 | Sony A7R IIIA |
Focus System | Contrast-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/500s | 1/8000s |
Continuous Shooting | 10 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | up to 1/16000s | YES |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-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 | Single UHS-II |
Connectivity Specs | Panasonic G100 | Sony A7R IIIA |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 3.2 |
HDMI Port | micro HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | Headphone port | Headphone port |
Wifi Support | Wifi built-in | Wifi built-in |
Near-Field Communication | no NFC | NFC built-in |
Bluetooth Support | Bluetooth built-in | Bluetooth built-in |
Body Specs | Panasonic G100 | Sony A7R IIIA |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Panasonic DMW-BLG10 | Sony NP-FZ100 |
Battery Life (CIPA) | 270 shots per charge | 650 shots per charge |
In-Camera Charging | USB charging | USB charging |
Body Dimensions |
116 x 83 x 54 mm (4.6 x 3.3 x 2.1 in) |
127 x 96 x 74 mm (5.0 x 3.8 x 2.9 in) |
Camera Weight | 352 g (12.4 oz) | 650 g (22.9 oz) |
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