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Sony A7R II vs Panasonic S1

The Sony Alpha A7R II and the Panasonic Lumix DC-S1 are two enthusiast cameras that were officially introduced, respectively, in June 2015 and February 2019. Both the A7R II and the S1 are mirrorless interchangeable lens cameras that are equipped with a full frame sensor. The Sony has a resolution of 42.2 megapixels, whereas the Panasonic provides 24 MP.

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

Headline Specifications
Sony A7R II
versus
Panasonic S1
Sony A7R II   Panasonic S1
Mirrorless system camera Mirrorless system camera
Sony E mount lenses Leica L mount lenses
42.2 MP – Full Frame sensor 24 MP – Full Frame sensor
4K/30p Video 4K/60p Video
ISO 100-25,600 (50 - 102,400) ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (2400k dots) Electronic viewfinder (5760k dots)
3.0" LCD – 1229k dots 3.2" LCD – 2100k dots
Tilting screen (no touchscreen) Fully flexible touchscreen
5 shutter flaps per second 9 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
290 shots per battery charge400 shots per battery charge
127 x 96 x 60 mm, 625 g 149 x 110 x 97 mm, 1017 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R II and the Panasonic Lumix DC-S1? 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 side-by-side display below illustrates the physical size and weight of the Sony A7R II and the Panasonic S1. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Sony A7R II vs Panasonic S1
Compare A7R II versus S1 top
Comparison A7R II or S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic S1 is notably larger (34 percent) than the Sony A7R II. Moreover, the S1 is substantially heavier (63 percent) than the A7R II. 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.

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 A7R II gets 290 shots out of its Sony NP-FW50 battery, while the S1 can take 400 images on a single charge of its Panasonic DMW-BLJ31 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.

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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.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 US$ 3 199ebay.com
2.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 US$ 2 499 amazon.com
3.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 US$ 2 499 amazon.com
4.
 
Olympus E-M1X 144 mm 147 mm 75 mm 997 g 870 Y Jan 2019 US$ 2 999ebay.com
5.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 US$ 3 999 amazon.com
6.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 US$ 3 699 amazon.com
7.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 US$ 1 999 amazon.com
8.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 US$ 6 499 amazon.com
9.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 US$ 1 999ebay.com
10.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 US$ 2 299ebay.com
11.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 US$ 3 199ebay.com
12.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 US$ 3 199 amazon.com
13.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 US$ 3 499ebay.com
14.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 US$ 3 899 amazon.com
15.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 US$ 2 999ebay.com
16.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 US$ 3 499 amazon.com
17.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 US$ 3 199ebay.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 S1 was launched at a somewhat lower price (by 22 percent) than the A7R II, which makes it more attractive for photographers on a tight budget. 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. 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.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the S1 is 2 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A7R II and Panasonic S1 sensor measures

With 42.2MP, the A7R II offers a higher resolution than the S1 (24MP), but the A7R II has smaller individual pixels (pixel pitch of 4.52μm versus 5.94μm for the S1). Moreover, the S1 is a much more recent model (by 3 years and 7 months) than the A7R II, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. 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 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R II 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 S1 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.

The A7R II has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the A7R II, the S1 has the capacity to capture high quality composite images (96MP) 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 Sony Alpha A7R II has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Panasonic Lumix DC-S1 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the A7R II is build around a BSI-CMOS sensor, while the S1 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.

A7R II versus S1 MP

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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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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.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
2.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
3.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
4.
 
Olympus E-M1X Four Thirds 20.2 5184 38884K/30p23.213.0125475
5.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p25.214.2280594
6.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525100
7.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
8.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
9.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
10.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
11.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
12.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
13.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
16.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
17.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
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 S1 provides a faster frame rate than the A7R II. It can shoot movie footage at 4K/60p, while the Sony is limited to 4K/30p.

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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 S1 offers a substantially higher resolution than the one in the A7R II (5760k vs 2400k dots). The following table reports on some other key feature differences and similarities of the Sony A7R II, the Panasonic S1, 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.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
2.
 
Panasonic S15760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
3.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
4.
 
Olympus E-M1X2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
5.
 
Panasonic S1H5760 Y3.2 / 2330 swivel Y 1/8000s 9.0/s n Y
6.
 
Panasonic S1R5760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
7.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
8.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
9.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
10.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
11.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
15.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
17.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The S1 has a touchscreen, while the A7R II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 S1 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 A7R II writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the S1 uses SDXC or XQD cards. The S1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A7R II only has one slot. The S1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the A7R II can use UHS-I cards (up to 104 MB/s).

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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 Sony Alpha A7R II and Panasonic Lumix DC-S1 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.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
2.
 
Panasonic S1Ystereo / monoYYfull3.1Y-Y
3.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
4.
 
Olympus E-M1XYstereo / monoYYmicro3.0Y-Y
5.
 
Panasonic S1HYstereo / monoYYfull3.1Y-Y
6.
 
Panasonic S1RYstereo / monoYYfull3.1Y-Y
7.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
8.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
9.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
10.
 
Sony A7RYstereo / monoYYmicro2.0YY-
11.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
12.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
13.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
14.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
15.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
17.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY

Studio photographers will appreciate that the Panasonic S1 (unlike the A7R II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The S1 is a recent model that features in the current product line-up of Panasonic. In contrast, the A7R II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R II was succeeded by the Sony A7R III. Further information on the features and operation of the A7R II and S1 can be found, respectively, in the Sony A7R II Manual (free pdf) or the online Panasonic S1 Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Sony A7R II or the Panasonic S1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Sony Alpha A7R II:

  • More detail: Offers more megapixels (42.2 vs 24MP) with a 33% higher linear resolution.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More compact: Is smaller (127x96mm vs 149x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 392g or 39 percent) and hence easier to carry around.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been available for much longer (launched in June 2015).

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Reasons to prefer the Panasonic Lumix DC-S1:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • More dynamic range: Captures a broader range of light and dark details (0.6 EV of extra DR).
  • Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 2400k dots).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1229k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (9 vs 5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (400 versus 290) out of a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 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.
  • 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 affordable: Was released into a lower priced segment (22 percent cheaper at launch).
  • More modern: Reflects 3 years and 7 months of technical progress since the A7R II launch.

If the count of individual advantages (bullet points above) is taken as a guide, the S1 is the clear winner of the contest (20 : 6 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 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.

A7R II 06:20 S1

How about other alternatives? Do the specifications of the Sony A7R II and the Panasonic S1 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 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 A7R II or the S1 perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 US$ 3 199ebay.com
2.
 
Panasonic S14.5/5+ +4.5/588/1004.5/54/5 Feb 2019 US$ 2 499 amazon.com
3.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 US$ 2 499 amazon.com
4.
 
Olympus E-M1X4.5/5o5/585/1004.5/5.. Jan 2019 US$ 2 999ebay.com
5.
 
Panasonic S1H....4/590/100.... May 2019 US$ 3 999 amazon.com
6.
 
Panasonic S1R4.5/5..4.6/589/1004.5/54.5/5 Feb 2019 US$ 3 699 amazon.com
7.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 US$ 1 999 amazon.com
8.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 US$ 6 499 amazon.com
9.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 US$ 1 999ebay.com
10.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 US$ 2 299ebay.com
11.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 US$ 3 199ebay.com
12.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 US$ 3 199 amazon.com
13.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 US$ 3 499ebay.com
14.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 US$ 3 899 amazon.com
15.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 US$ 2 999ebay.com
16.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 US$ 3 499 amazon.com
17.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 US$ 3 199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Sony A7R II vs Panasonic S1

    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 Sony A7R II Panasonic S1
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Sony E mount lenses Leica L mount lenses
    Launch Date June 2015 February 2019
    Launch Price USD 3,199 USD 2,499
    Sensor Specs Sony A7R II Panasonic S1
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 35.9 x 24.0 mm 35.6 x 23.8 mm
    Sensor Area 861.6 mm2 847.28 mm2
    Sensor Diagonal 43.2 mm 42.8 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 42.2 Megapixels 24 Megapixels
    Image Resolution 7952 x 5304 pixels 6000 x 4000 pixels
    Pixel Pitch 4.52 μm 5.94 μm
    Pixel Density 4.90 MP/cm2 2.83 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/60p Video
    ISO Setting 100 - 25,600 ISO 100 - 51,200 ISO
    ISO Boost 50 - 102,400 ISO 50 - 204,800 ISO
    Image Processor BIONZ X Venus
    DXO Sensor Quality (score) 98 95
    DXO Color Depth (bits) 26.0 25.2
    DXO Dynamic Range (EV) 13.9 14.5
    DXO Low Light (ISO) 3434 3333
    Screen Specs Sony A7R II Panasonic S1
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x 0.78x
    Viewfinder Resolution 2400k dots 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1229k dots 2100k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Sony A7R II Panasonic S1
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 5 shutter flaps/s 9 shutter flaps/s
    Shutter Life Expectancy500 000 actuations400 000 actuations
    Electronic ShutterYESup to 1/8000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium MS or SDXC cards SDXC or XQD cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-II
    Connectivity Specs Sony A7R II Panasonic S1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI full 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 NFC built-in no NFC
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Sony A7R II Panasonic S1
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FW50 Panasonic DMW-BLJ31
    Battery Life (CIPA)290 shots per charge400 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 127 x 96 x 60 mm
    (5.0 x 3.8 x 2.4 in)
    149 x 110 x 97 mm
    (5.9 x 4.3 x 3.8 in)
    Camera Weight 625 g (22.0 oz) 1017 g (35.9 oz)
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