OM System TG-7 vs Sony A7S III
The OM System Tough TG-7 and the Sony Alpha 7S III are two digital cameras that were officially introduced, respectively, in September 2023 and July 2020. The TG-7 is a fixed lens compact, while the A7S III is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-7) and a full frame (A7S III) sensor. Both cameras offer a resolution of 12 megapixels.
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 OM System Tough TG-7 and the Sony Alpha 7S III? 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
An illustration of the physical size and weight of the OM System TG-7 and the Sony A7S III is provided 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.
The TG-7 can be obtained in two different colors (black, red), while the A7S III is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S III is considerably larger (64 percent) than the OM System TG-7. 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. More than that, the TG-7 is water-proof up to 15m and can, thus, be used for underwater photography.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TG-7 has a lens built in, whereas the A7S III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7S III and their specifications in the Sony FE Lens Catalog.
Concerning battery life, the TG-7 gets 330 shots out of its OM System LI-92B battery, while the A7S III can take 600 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 table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | OM System TG-7 | 114 mm | 66 mm | 33 mm | 249 g | 330 | Y | Sep 2023 | US$ 549 | amazon.com | |
2. | Sony A7S III | 127 mm | 97 mm | 81 mm | 699 g | 600 | Y | Jul 2020 | US$ 3 499 | amazon.com | |
3. | Fujifilm XP130 | 110 mm | 71 mm | 28 mm | 207 g | 240 | Y | Jan 2018 | US$ 229 | ebay.com | |
4. | Fujifilm XP140 | 110 mm | 71 mm | 28 mm | 207 g | 240 | Y | Feb 2019 | US$ 229 | ebay.com | |
5. | Nikon W300 | 112 mm | 66 mm | 29 mm | 231 g | 280 | Y | May 2017 | US$ 389 | ebay.com | |
6. | Olympus E-PM1 | 110 mm | 64 mm | 34 mm | 265 g | 330 | n | Jun 2011 | US$ 499 | ebay.com | |
7. | Olympus TG-4 | 112 mm | 66 mm | 31 mm | 247 g | 380 | Y | Apr 2015 | US$ 379 | ebay.com | |
8. | Olympus TG-5 | 113 mm | 66 mm | 32 mm | 250 g | 340 | Y | May 2017 | US$ 449 | ebay.com | |
9. | Olympus TG-6 | 113 mm | 66 mm | 32 mm | 253 g | 340 | Y | May 2019 | US$ 449 | ebay.com | |
10. | Olympus XZ-1 | 111 mm | 65 mm | 42 mm | 275 g | 320 | n | Jan 2011 | US$ 499 | ebay.com | |
11. | Olympus XZ-2 | 113 mm | 65 mm | 48 mm | 346 g | 340 | n | Sep 2012 | US$ 599 | ebay.com | |
12. | Panasonic FZ300 | 132 mm | 92 mm | 117 mm | 691 g | 380 | Y | Jul 2015 | US$ 599 | amazon.com | |
13. | Sony A7R III | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Oct 2017 | US$ 3 199 | ebay.com | |
14. | Sony A7R IV | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Jul 2019 | US$ 3 499 | ebay.com | |
15. | Sony A7R IVA | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Apr 2021 | US$ 3 499 | amazon.com | |
16. | Sony A7S II | 127 mm | 96 mm | 60 mm | 627 g | 370 | Y | Sep 2015 | US$ 2 999 | ebay.com | |
17. | Sony A9 II | 129 mm | 96 mm | 76 mm | 678 g | 690 | Y | Oct 2019 | US$ 4 499 | 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 TG-7 was launched at a lower price than the A7S III, despite having a lens built in. 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 imaging sensor is a crucial determinant 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the OM System TG-7 features a 1/2.3-inch sensor and the Sony A7S III a full frame sensor. The sensor area in the A7S III is 2925 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.0. The sensor in the TG-7 has a native 4:3 aspect ratio, while the one in the A7S III offers a 3:2 aspect.
Even though the A7S III has a larger sensor, both cameras offer the same resolution of 12 megapixels. This implies that the A7S III has a lower pixel density and larger individual pixels (with a pixel pitch of 8.40μm versus 1.53μm for the TG-7), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the TG-7 is much more recent (by 3 years and 1 month) than the A7S III, and its sensor will have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The A7S III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The OM System Tough TG-7 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha 7S III are ISO 80 to ISO 102400, with the possibility to increase the ISO range to 40-409600.
Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated 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.
For many 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 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. | OM System TG-7 | 1/2.3 | 12.0 | 4000 | 3000 | 4K/30p | 20.9 | 12.7 | 1553 | 54 | |
2. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
3. | Fujifilm XP130 | 1/2.3 | 15.9 | 4608 | 3456 | 1080/60p | 20.6 | 12.1 | 1000 | 51 | |
4. | Fujifilm XP140 | 1/2.3 | 15.9 | 4608 | 3456 | 4K/15p | 20.7 | 12.2 | 1102 | 52 | |
5. | Nikon W300 | 1/2.3 | 15.9 | 4608 | 3456 | 4K/30p | 20.5 | 12.0 | 938 | 50 | |
6. | Olympus E-PM1 | Four Thirds | 12.2 | 4032 | 3024 | 1080/60i | 21.0 | 10.3 | 499 | 52 | |
7. | Olympus TG-4 | 1/2.3 | 15.9 | 4608 | 3456 | 1080/30p | 20.2 | 11.6 | 737 | 47 | |
8. | Olympus TG-5 | 1/2.3 | 12.0 | 4000 | 3000 | 4K/30p | 20.5 | 11.9 | 934 | 50 | |
9. | Olympus TG-6 | 1/2.3 | 12.0 | 4000 | 3000 | 4K/30p | 20.7 | 12.2 | 1127 | 52 | |
10. | Olympus XZ-1 | 1/1.7 | 10.1 | 3664 | 2752 | 720/30p | 18.8 | 10.4 | 117 | 34 | |
11. | Olympus XZ-2 | 1/1.7 | 11.8 | 3968 | 2976 | 1080/30p | 20.4 | 11.3 | 216 | 49 | |
12. | Panasonic FZ300 | 1/2.3 | 12.0 | 4000 | 3000 | 4K/30p | 19.3 | 11.0 | 97 | 38 | |
13. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
14. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
15. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
16. | Sony A7S II | Full Frame | 12.0 | 4240 | 2832 | 4K/30p | 23.6 | 13.3 | 2993 | 85 | |
17. | Sony A9 II | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.0 | 3434 | 93 | |
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 are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7S III provides a faster frame rate than the TG-7. It can shoot movie footage at 4K/120p, while the OM System is limited to 4K/30p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7S III has an electronic viewfinder (9440k dots), which can be very helpful when shooting in bright sunlight. In contrast, the TG-7 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the OM System TG-7 and Sony A7S III in connection with corresponding information for a sample of similar cameras.
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. | OM System TG-7 | none | n | 3.0 / 1040 | fixed | n | 1/2000s | 20.0/s | Y | Y | |
2. | Sony A7S III | 9440 | n | 3.0 / 1440 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
3. | Fujifilm XP130 | none | n | 3.0 / 920 | fixed | n | 1/2000s | 10.0/s | Y | Y | |
4. | Fujifilm XP140 | none | n | 3.0 / 920 | fixed | n | 1/2000s | 10.0/s | Y | Y | |
5. | Nikon W300 | none | n | 3.0 / 921 | fixed | n | 1/4000s | 7.0/s | Y | Y | |
6. | Olympus E-PM1 | optional | n | 3.0 / 460 | fixed | n | 1/4000s | 5.5/s | n | Y | |
7. | Olympus TG-4 | none | n | 3.0 / 460 | fixed | n | 1/2000s | 5.0/s | Y | Y | |
8. | Olympus TG-5 | none | n | 3.0 / 460 | fixed | n | 1/2000s | 20.0/s | Y | Y | |
9. | Olympus TG-6 | none | n | 3.0 / 1040 | fixed | n | 1/2000s | 20.0/s | Y | Y | |
10. | Olympus XZ-1 | optional | n | 3.0 / 614 | fixed | n | 1/2000s | 2.0/s | Y | Y | |
11. | Olympus XZ-2 | optional | n | 3.0 / 920 | tilting | Y | 1/2000s | 5.0/s | Y | Y | |
12. | Panasonic FZ300 | 1440 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 12.0/s | Y | Y | |
13. | Sony A7R III | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
14. | Sony A7R IV | 5760 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
15. | Sony A7R IVA | 5760 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
16. | Sony A7S II | 2400 | n | 3.0 / 1229 | tilting | n | 1/8000s | 5.0/s | n | Y | |
17. | Sony A9 II | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 20.0/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 TG-7 has one, while the A7S III does not. While the built-in flash of the TG-7 is not very powerful, it can at times be useful as a fill-in light.
The A7S III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the TG-7 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, the A7S III 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 OM System TG-7 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 TG-7 writes its imaging data to SDXC cards, while the A7S III uses CFexpress (type A) or SDXC cards. The A7S III features dual card slots, which can be very useful in case a memory card fails. In contrast, the TG-7 only has one slot. The A7S III supports UHS-II cards (on both slots), while the TG-7 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 OM System Tough TG-7 and Sony Alpha 7S III 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. | OM System TG-7 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
2. | Sony A7S III | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
3. | Fujifilm XP130 | - | mono / mono | - | - | micro | 2.0 | Y | - | Y | |
4. | Fujifilm XP140 | - | mono / mono | - | - | micro | 2.0 | Y | - | Y | |
5. | Nikon W300 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
6. | Olympus E-PM1 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
7. | Olympus TG-4 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
8. | Olympus TG-5 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
9. | Olympus TG-6 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
10. | Olympus XZ-1 | Y | mono / - | - | - | mini | 2.0 | - | - | - | |
11. | Olympus XZ-2 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
12. | Panasonic FZ300 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
13. | Sony A7R III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
14. | Sony A7R IV | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
15. | Sony A7R IVA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
16. | Sony A7S II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
17. | Sony A9 II | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y |
It is notable that the A7S III has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The TG-7 does not feature such a mic input.
Travel and landscape photographers will find it useful that the TG-7 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the TG-7 and the A7S III are recent models that are part of the current product line-up. The A7S III replaced the earlier Sony A7S II, while the TG-7 followed on from the Olympus TG-6. Further information on the features and operation of the TG-7 and A7S III can be found, respectively, in the OM System TG-7 Manual (free pdf) or the online Sony A7S III Manual.
Review summary
So what is the bottom line? Which of the two cameras – the OM System TG-7 or the Sony A7S III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Reasons to prefer the OM System Tough TG-7:
- Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Has a lens built-in, whereas the A7S III requires a separate lens.
- More compact: Is smaller (114x66mm vs 127x97mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7S III).
- Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 3 years and 1 month of technical progress since the A7S III launch.
Advantages of the Sony Alpha 7S III:
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better video: Provides higher movie framerates (4K/120p versus 4K/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- Longer lasting: Gets more shots (600 versus 330) out of a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
- More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- 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 heavily discounted: Has been around for much longer (launched in July 2020).
If the number of relative strengths (bullet points above) is taken as a guide, the A7S III is the clear winner of the contest (24 : 10 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. 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.
How about other alternatives? Do the specifications of the OM System TG-7 and the Sony A7S III place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens 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 TG-7 or the A7S III perform in practice. 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 expert reviews 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. | OM System TG-7 | 4/5 | .. | 4.5/5 | .. | 4/5 | 4/5 | Sep 2023 | US$ 549 | amazon.com | |
2. | Sony A7S III | 4.5/5 | + + | 5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2020 | US$ 3 499 | amazon.com | |
3. | Fujifilm XP130 | .. | o | .. | .. | 3.5/5 | 4/5 | Jan 2018 | US$ 229 | ebay.com | |
4. | Fujifilm XP140 | .. | + | .. | .. | 3.5/5 | 4/5 | Feb 2019 | US$ 229 | ebay.com | |
5. | Nikon W300 | .. | + | .. | .. | 4/5 | 4/5 | May 2017 | US$ 389 | ebay.com | |
6. | Olympus E-PM1 | .. | 86/100 | .. | 71/100 | 4.5/5 | 4.5/5 | Jun 2011 | US$ 499 | ebay.com | |
7. | Olympus TG-4 | .. | + | .. | 79/100 | 4/5 | 4/5 | Apr 2015 | US$ 379 | ebay.com | |
8. | Olympus TG-5 | .. | + + | 4.5/5 | .. | 4/5 | 4/5 | May 2017 | US$ 449 | ebay.com | |
9. | Olympus TG-6 | 4/5 | + + | 4.5/5 | 76/100 | 4/5 | 4/5 | May 2019 | US$ 449 | ebay.com | |
10. | Olympus XZ-1 | 4/5 | .. | .. | 74/100 | 4.5/5 | 4.5/5 | Jan 2011 | US$ 499 | ebay.com | |
11. | Olympus XZ-2 | 4/5 | + | .. | .. | 4.5/5 | 4.5/5 | Sep 2012 | US$ 599 | ebay.com | |
12. | Panasonic FZ300 | .. | + + | .. | .. | 4.5/5 | 4.5/5 | Jul 2015 | US$ 599 | amazon.com | |
13. | Sony A7R III | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Oct 2017 | US$ 3 199 | ebay.com | |
14. | Sony A7R IV | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2019 | US$ 3 499 | ebay.com | |
15. | Sony A7R IVA | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Apr 2021 | US$ 3 499 | amazon.com | |
16. | Sony A7S II | 5/5 | + | .. | .. | 4.5/5 | 5/5 | Sep 2015 | US$ 2 999 | ebay.com | |
17. | Sony A9 II | .. | .. | 5/5 | 90/100 | 5/5 | 5/5 | Oct 2019 | US$ 4 499 | amazon.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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. 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? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
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- Canon SX400 vs Sony A7S III
- Fujifilm X-H2S vs OM System TG-7
- Fujifilm X-S10 vs OM System TG-7
- Hasselblad X2D 100C vs Sony A7S III
- Nikon D5300 vs Sony A7S III
- OM System TG-7 vs Panasonic FZ100
- OM System TG-7 vs Panasonic S5
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- Panasonic GX850 vs Sony A7S III
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Specifications: OM System TG-7 vs Sony A7S III
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 | OM System TG-7 | Sony A7S III |
---|---|---|
Camera Type | Fixed lens compact camera | Mirrorless system camera |
Camera Lens | 25-100mm f/2.0-4.9 | Sony E mount lenses |
Launch Date | September 2023 | July 2020 |
Launch Price | USD 549 | USD 3,499 |
Sensor Specs | OM System TG-7 | Sony A7S III |
Sensor Technology | BSI-CMOS | BSI-CMOS |
Sensor Format | 1/2.3" Sensor | Full Frame Sensor |
Sensor Size | 6.17 x 4.55 mm | 35.6 x 23.8 mm |
Sensor Area | 28.0735 mm2 | 847.28 mm2 |
Sensor Diagonal | 7.7 mm | 42.8 mm |
Crop Factor | 5.6x | 1.0x |
Sensor Resolution | 12 Megapixels | 12 Megapixels |
Image Resolution | 4000 x 3000 pixels | 4240 x 2832 pixels |
Pixel Pitch | 1.53 μm | 8.40 μm |
Pixel Density | 42.74 MP/cm2 | 1.42 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 4K/30p Video | 4K/120p Video |
ISO Setting | 100 - 12,800 ISO | 80 - 102,400 ISO |
ISO Boost | no Enhancement | 40 - 409,600 ISO |
Image Processor | TruePic VIII | BIONZ XR |
DXO Sensor Quality (score) | .. | 86 |
DXO Color Depth (bits) | .. | 23.7 |
DXO Dynamic Range (EV) | .. | 13.9 |
DXO Low Light (ISO) | .. | 2520 |
Screen Specs | OM System TG-7 | Sony A7S III |
Viewfinder Type | no viewfinder | Electronic viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.91x | |
Viewfinder Resolution | 9440k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1040k dots | 1440k dots |
LCD Attachment | Fixed screen | Swivel screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | OM System TG-7 | Sony A7S III |
Focus System | Contrast-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/2000s | 1/8000s |
Continuous Shooting | 20 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | no E-Shutter | YES |
Time-Lapse Photography | Intervalometer built-in | no Intervalometer |
Image Stabilization | In-body stabilization | In-body stabilization |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDXC cards | CFexA or SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | UHS-I | Dual UHS-II |
Connectivity Specs | OM System TG-7 | Sony A7S III |
External Flash | no Hotshoe | Hotshoe |
USB Connector | USB 2.0 | USB 3.2 |
HDMI Port | micro HDMI | full HDMI |
Microphone Port | no MIC socket | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | Wifi built-in | Wifi built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Geotagging | GPS built-in | no internal GPS |
Body Specs | OM System TG-7 | Sony A7S III |
Environmental Sealing | Waterproof body (15m) | Weathersealed body |
Battery Type | OM System LI-92B | Sony NP-FZ100 |
Battery Life (CIPA) | 330 shots per charge | 600 shots per charge |
In-Camera Charging | USB charging | USB charging |
Body Dimensions |
114 x 66 x 33 mm (4.5 x 2.6 x 1.3 in) |
127 x 97 x 81 mm (5.0 x 3.8 x 3.2 in) |
Camera Weight | 249 g (8.8 oz) | 699 g (24.7 oz) |
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