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OM System TG-7 vs Sony A7R IV

The OM System Tough TG-7 and the Sony Alpha A7R IV are two digital cameras that were announced, respectively, in September 2023 and July 2019. The TG-7 is a fixed lens compact, while the A7R IV is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-7) and a full frame (A7R IV) sensor. The OM System has a resolution of 12 megapixels, whereas the Sony provides 60.2 MP.

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

Headline Specifications
OM System TG-7
versus
Sony A7R IV
OM System TG-7   Sony A7R IV
Fixed lens compact camera Mirrorless system camera
25-100mm f/2.0-4.9 Sony E mount lenses
12 MP – 1/2.3" sensor 60.2 MP – Full Frame sensor
4K/30p Video 4K/30p Video
ISO 100-12,800 ISO 100-32,000 (50 - 102,400)
No viewfinder, LCD framing Electronic viewfinder (5760k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
20 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Waterproof body (15m)Weathersealed body
330 shots per battery charge670 shots per battery charge
114 x 66 x 33 mm, 249 g 129 x 96 x 78 mm, 665 g
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Check TG-7 price at
amazon.com
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Check A7R IV offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the OM System Tough TG-7 and the Sony Alpha A7R IV? 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 OM System TG-7 and the Sony A7R IV are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

The TG-7 can be obtained in two different colors (black, red), while the A7R IV is only available in black.

Size OM System TG-7 vs Sony A7R IV
Compare TG-7 versus A7R IV top
Comparison TG-7 or A7R IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R IV is considerably larger (65 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 A7R IV 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 A7R IV 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 A7R IV can take 670 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. 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.

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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.
 
OM System TG-7 114 mm 66 mm 33 mm 249 g 330 Y Sep 2023 US$ 549 amazon.com
2.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 US$ 3 499ebay.com
3.
 
Fujifilm XP130 110 mm 71 mm 28 mm 207 g 240 Y Jan 2018 US$ 229ebay.com
4.
 
Fujifilm XP140 110 mm 71 mm 28 mm 207 g 240 Y Feb 2019 US$ 229ebay.com
5.
 
Nikon W300 112 mm 66 mm 29 mm 231 g 280 Y May 2017 US$ 389ebay.com
6.
 
Olympus E-PM1 110 mm 64 mm 34 mm 265 g 330 n Jun 2011 US$ 499ebay.com
7.
 
Olympus TG-4 112 mm 66 mm 31 mm 247 g 380 Y Apr 2015 US$ 379ebay.com
8.
 
Olympus TG-5 113 mm 66 mm 32 mm 250 g 340 Y May 2017 US$ 449ebay.com
9.
 
Olympus TG-6 113 mm 66 mm 32 mm 253 g 340 Y May 2019 US$ 449ebay.com
10.
 
Olympus XZ-1 111 mm 65 mm 42 mm 275 g 320 n Jan 2011 US$ 499ebay.com
11.
 
Olympus XZ-2 113 mm 65 mm 48 mm 346 g 340 n Sep 2012 US$ 599ebay.com
12.
 
Panasonic FZ300 132 mm 92 mm 117 mm 691 g 380 Y Jul 2015 US$ 599 amazon.com
13.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 US$ 1 999 amazon.com
14.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 US$ 3 199ebay.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 III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 US$ 3 499 amazon.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.

The price is, of course, an important factor in any camera decision. 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 TG-7 was launched at a lower price than the A7R IV, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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 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 A7R IV a full frame sensor. The sensor area in the A7R IV is 2936 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 A7R IV offers a 3:2 aspect.

OM System TG-7 and Sony A7R IV sensor measures

With 60.2MP, the A7R IV offers a higher resolution than the TG-7 (12MP), but the A7R IV nevertheless has larger individual pixels (pixel pitch of 3.76μm versus 1.53μm for the TG-7) due to its larger sensor. However, the TG-7 is a much more recent model (by 4 years and 1 month) than the A7R IV, 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 A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the OM System TG-7 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 A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the TG-7, the A7R IV has the capacity to capture high quality composite images (241MP) 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 OM System Tough TG-7 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

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.

TG-7 versus A7R IV MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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.
 
OM System TG-7 1/2.3 12.0 4000 30004K/30p20.912.7155354
2.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
3.
 
Fujifilm XP130 1/2.3 15.9 4608 34561080/60p20.612.1100051
4.
 
Fujifilm XP140 1/2.3 15.9 4608 34564K/15p20.712.2110252
5.
 
Nikon W300 1/2.3 15.9 4608 34564K/30p20.512.093850
6.
 
Olympus E-PM1 Four Thirds 12.2 4032 30241080/60i21.010.349952
7.
 
Olympus TG-4 1/2.3 15.9 4608 34561080/30p20.211.673747
8.
 
Olympus TG-5 1/2.3 12.0 4000 30004K/30p20.511.993450
9.
 
Olympus TG-6 1/2.3 12.0 4000 30004K/30p20.712.2112752
10.
 
Olympus XZ-1 1/1.7 10.1 3664 2752720/30p18.810.411734
11.
 
Olympus XZ-2 1/1.7 11.8 3968 29761080/30p20.411.321649
12.
 
Panasonic FZ300 1/2.3 12.0 4000 30004K/30p19.311.09738
13.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
15.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
16.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
17.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/30p).

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k 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 following table reports on some other key feature differences and similarities of the OM System TG-7, the Sony A7R IV, 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.
 
OM System TG-7none n3.0 / 1040 fixed n 1/2000s 20.0/s Y Y
2.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Fujifilm XP130none n3.0 / 920 fixed n 1/2000s 10.0/s Y Y
4.
 
Fujifilm XP140none n3.0 / 920 fixed n 1/2000s 10.0/s Y Y
5.
 
Nikon W300none n3.0 / 921 fixed n 1/4000s 7.0/s Y Y
6.
 
Olympus E-PM1optional n3.0 / 460 fixed n 1/4000s 5.5/s n Y
7.
 
Olympus TG-4none n3.0 / 460 fixed n 1/2000s 5.0/s Y Y
8.
 
Olympus TG-5none n3.0 / 460 fixed n 1/2000s 20.0/s Y Y
9.
 
Olympus TG-6none n3.0 / 1040 fixed n 1/2000s 20.0/s Y Y
10.
 
Olympus XZ-1optional n3.0 / 614 fixed n 1/2000s 2.0/s Y Y
11.
 
Olympus XZ-2optional n3.0 / 920 tilting Y 1/2000s 5.0/s Y Y
12.
 
Panasonic FZ3001440 n3.0 / 1040 swivel Y 1/4000s 12.0/s Y Y
13.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R IVA5760 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
17.
 
Sony A9 II3686 n3.0 / 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 A7R IV 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 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 A7R IV 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 and the Sony A7R IV 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.

Concerning the storage of imaging data, both the TG-7 and the A7R IV write their files to SDXC cards. The A7R IV 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 A7R IV supports UHS-II cards (on both slots), while the TG-7 can use UHS-I cards.

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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 A7R IV 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.
 
OM System TG-7-stereo / mono--micro2.0Y--
2.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
3.
 
Fujifilm XP130-mono / mono--micro2.0Y-Y
4.
 
Fujifilm XP140-mono / mono--micro2.0Y-Y
5.
 
Nikon W300-stereo / mono--micro2.0Y-Y
6.
 
Olympus E-PM1Ystereo / mono--mini2.0---
7.
 
Olympus TG-4-stereo / mono--micro2.0Y--
8.
 
Olympus TG-5-stereo / mono--micro2.0Y--
9.
 
Olympus TG-6-stereo / mono--micro2.0Y--
10.
 
Olympus XZ-1Ymono / ---mini2.0---
11.
 
Olympus XZ-2Ystereo / mono--mini2.0---
12.
 
Panasonic FZ300Ystereo / monoY-mini2.0Y--
13.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
14.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
16.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
17.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY

It is notable that the A7R IV 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.

Studio photographers will appreciate that the Sony A7R IV (unlike the TG-7) 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 TG-7 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The TG-7 is a recent model that features in the current product line-up of OM System. In contrast, the A7R IV has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R IV was succeeded by the Sony A7R V. Further information on the features and operation of the TG-7 and A7R IV can be found, respectively, in the OM System TG-7 Manual (free pdf) or the online Sony A7R IV Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the OM System TG-7 and the Sony A7R IV? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the OM System Tough TG-7:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has a lens built-in, whereas the A7R IV requires a separate lens.
  • More compact: Is smaller (114x66mm vs 129x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7R IV).
  • 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 4 years and 1 month of technical progress since the A7R IV launch.

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Arguments in favor of the Sony Alpha A7R IV:

  • More detail: Has more megapixels (60.2 vs 12MP), which boosts linear resolution by 128%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • 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 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 tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • 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 (670 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 (3.1 vs 2.0).
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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 heavily discounted: Has been around for much longer (launched in July 2019).

If the count of relative strengths (bullet points above) is taken as a measure, the A7R IV is the clear winner of the contest (26 : 10 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 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.

TG-7 10:26 A7R IV

How about other alternatives? Do the specifications of the OM System TG-7 and the Sony A7R IV 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 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 TG-7 or the A7R IV 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 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.

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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.
 
OM System TG-74/5..4.5/5..4/54/5 Sep 2023 US$ 549 amazon.com
2.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 US$ 3 499ebay.com
3.
 
Fujifilm XP130..o....3.5/54/5 Jan 2018 US$ 229ebay.com
4.
 
Fujifilm XP140..+....3.5/54/5 Feb 2019 US$ 229ebay.com
5.
 
Nikon W300..+....4/54/5 May 2017 US$ 389ebay.com
6.
 
Olympus E-PM1..86/100..71/1004.5/54.5/5 Jun 2011 US$ 499ebay.com
7.
 
Olympus TG-4..+..79/1004/54/5 Apr 2015 US$ 379ebay.com
8.
 
Olympus TG-5..+ +4.5/5..4/54/5 May 2017 US$ 449ebay.com
9.
 
Olympus TG-64/5+ +4.5/576/1004/54/5 May 2019 US$ 449ebay.com
10.
 
Olympus XZ-14/5....74/1004.5/54.5/5 Jan 2011 US$ 499ebay.com
11.
 
Olympus XZ-24/5+....4.5/54.5/5 Sep 2012 US$ 599ebay.com
12.
 
Panasonic FZ300..+ +....4.5/54.5/5 Jul 2015 US$ 599 amazon.com
13.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 US$ 1 999 amazon.com
14.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
15.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 US$ 3 499 amazon.com
16.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 US$ 3 499 amazon.com
17.
 
Sony A9 II....5/590/1005/55/5 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 assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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: OM System TG-7 vs Sony A7R IV

    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 OM System TG-7 Sony A7R IV
    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 2019
    Launch Price USD 549 USD 3,499
    Sensor Specs OM System TG-7 Sony A7R IV
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format 1/2.3" Sensor Full Frame Sensor
    Sensor Size 6.17 x 4.55 mm 35.7 x 23.8 mm
    Sensor Area 28.0735 mm2 849.66 mm2
    Sensor Diagonal 7.7 mm 42.9 mm
    Crop Factor 5.6x 1.0x
    Sensor Resolution 12 Megapixels 60.2 Megapixels
    Image Resolution 4000 x 3000 pixels 9504 x 6336 pixels
    Pixel Pitch 1.53 μm 3.76 μm
    Pixel Density 42.74 MP/cm2 7.09 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 100 - 12,800 ISO 100 - 32,000 ISO
    ISO Boost no Enhancement 50 - 102,400 ISO
    Image Processor TruePic VIII BIONZ X
    DXO Sensor Quality (score) .. 99
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 14.8
    DXO Low Light (ISO) .. 3344
    Screen Specs OM System TG-7 Sony A7R IV
    Viewfinder Type no viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs OM System TG-7 Sony A7R IV
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 20 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards 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 A7R IV
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs OM System TG-7 Sony A7R IV
    Environmental SealingWaterproof body (15m)Weathersealed body
    Battery Type OM System LI-92B Sony NP-FZ100
    Battery Life (CIPA)330 shots per charge670 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)
    129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    Camera Weight 249 g (8.8 oz) 665 g (23.5 oz)
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