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Sony A7R IV vs A850

The Sony Alpha A7R IV and the Sony Alpha A850 are two digital cameras that were officially introduced, respectively, in July 2019 and August 2009. The A7R IV is a mirrorless interchangeable lens camera, while the A850 is a DSLR. Both cameras are equipped with a full frame sensor. The A7R IV has a resolution of 60.2 megapixels, whereas the A850 provides 24.4 MP.

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

Headline Specifications
Sony A7R IV
versus
Sony A850
Sony A7R IV   Sony A850
Mirrorless system camera Digital single lens reflex
Sony E mount lenses Sony A mount lenses
60.2 MP – Full Frame sensor 24.4 MP – Full Frame sensor
4K/30p Video no Video
ISO 100-32,000 (50 - 102,400) ISO 200-3,200 (100 - 6,400)
Electronic viewfinder (5760k dots) Optical viewfinder
3.0" LCD – 1440k dots 3.0" LCD – 922k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
10 shutter flaps per second 3 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
670 shots per battery charge880 shots per battery charge
129 x 96 x 78 mm, 665 g 156 x 117 x 82 mm, 895 g
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Check A7R IV price at
amazon.com
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Check A850 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R IV and the Sony Alpha A850? 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 Sony A7R IV and the Sony A850 is provided 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 size dimensions are rounded to the nearest millimeter.

Size Sony A7R IV vs Sony A850
Compare A7R IV versus A850 top
Comparison A7R IV or A850 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A850 is considerably larger (47 percent) than the Sony A7R IV. Moreover, the A850 is substantially heavier (35 percent) than the A7R IV. 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 IV gets 670 shots out of its NP-FZ100 battery, while the A850 can take 880 images on a single charge of its NP-FM500H power pack. The power pack in the A7R IV can be charged via the USB port, so that it is not always necessary to take the battery charger along 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.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 amazon.com
2.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999ebay.com
3.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
4.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 3,899 amazon.com
5.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
6.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
7.
 
Sony A9 II 129 mm 96 mm 76 mm 678 g 690 Y Oct 2019 4,499 amazon.com
8.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
9.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
10.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
11.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
12.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
13.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999ebay.com
14.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
15.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799ebay.com
16.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399ebay.com
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will 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 A850 was launched at a markedly lower price (by 43 percent) than the A7R IV, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the A850 is 1 percent bigger. 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.

In terms of chip-set technology, the A7R IV uses a more advanced image processing engine (BIONZ X) than the A850 (BIONZ), with benefits for noise reduction, color accuracy, and processing speed.

Sony A7R IV and Sony A850 sensor measures

Despite having a slightly smaller sensor, the Sony A7R IV offers a higher resolution of 60.2 megapixels, compared with 24.4 MP of the Sony A850. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 5.94μm for the A850). However, it should be noted that the A7R IV is much more recent (by 9 years and 10 months) than the A850, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. 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 Sony A850 are 30.2 x 20.2 inches or 76.8 x 51.2 cm for good quality, 24.2 x 16.1 inches or 61.4 x 41 cm for very good quality, and 20.2 x 13.4 inches or 51.2 x 34.1 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 A850, 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 Sony Alpha A7R IV has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 50-102400. The corresponding ISO settings for the Sony Alpha A850 are ISO 200 to ISO 3200, with the possibility to increase the ISO range to 100-6400.

In terms of underlying technology, the A7R IV is build around a BSI-CMOS sensor, while the A850 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 IV versus A850 MP

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"). Of the two cameras under review, the A7R IV provides substantially higher image quality than the A850, with an overall score that is 20 points higher. This advantage is based on 2.2 bits higher color depth, 2.6 EV in additional dynamic range, and 1.2 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
2.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
3.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
4.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p25.414.6314396
5.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
6.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
7.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
8.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
9.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
10.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
11.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
12.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
13.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
14.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
15.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
16.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The A7R IV indeed provides movie recording capabilities, while the A850 does not. The highest resolution format that the A7R IV can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k dots), while the A850 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A7R IV offers a wider field of view (100%) than the one in the A850 (98%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7R IV has a higher magnification (0.78x vs 0.74x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Sony A7R IV and Sony A850 along with similar information for a selection of comparators.

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Core Features
    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 IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
2.
 
Sony A850optical Y3.0 / 922 fixed n 1/8000s 3.0/s n Y
3.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
4.
 
Sony A7R V9440 n3.2 / 2100 full-flex Y 1/8000s 10.0/s n Y
5.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
6.
 
Sony A7S III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
7.
 
Sony A9 II3686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
8.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
9.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
11.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
12.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
13.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
14.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
16.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
17.
 
Sony A900optical Y3.0 / 922 fixed n 1/8000s 5.0/s n Y
Notes: *) 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 A7R IV has a touchscreen, while the A850 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, 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 Sony A7R IV 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 IV writes its imaging data to SDXC cards, while the A850 uses Compact Flash or Memory Stick PRO Duo cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.

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 IV and Sony Alpha A850 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
2.
 
Sony A850Y- / ---mini2.0---
3.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
4.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
5.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
6.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
7.
 
Sony A9 IIYstereo / monoYYmicro3.1YYY
8.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
9.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
10.
 
Sony A9Ystereo / monoYYmicro2.0YYY
11.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
12.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
13.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
14.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A99Ystereo / monoYYmini2.0---
16.
 
Sony A77Ystereo / monoY-mini2.0---
17.
 
Sony A900Y- / ---mini2.0---

It is notable that the A7R IV offers wifi support, while the A850 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

The A7R IV is a recent model that features in the current product line-up of Sony. In contrast, the A850 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the A850 from Sony. Further information on the features and operation of the A7R IV and A850 can be found, respectively, in the Sony A7R IV Manual (free pdf) or the online Sony A850 Manual.

Review summary

So what is the bottom line? Is the Sony A7R IV better than the Sony A850 or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Sony Alpha A7R IV:

  • More detail: Offers more megapixels (60.2 vs 24.4MP) with a 57% higher linear resolution.
  • 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: Scores substantially higher (20 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.2 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2.6 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.2 stops ISO advantage).
  • Better jpgs: Has a more modern image processing engine (BIONZ X vs BIONZ).
  • Broader imaging potential: Can record not only still images but also 4K/30p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.74x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 922k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (129x96mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 230g or 26 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 9 years and 10 months of technical progress since the A850 launch.


Advantages of the Sony Alpha A850:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Longer lasting: Gets more shots (880 versus 670) out of a single battery charge.
  • More affordable: Was introduced into a lower priced category (43 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in August 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the A7R IV is the clear winner of the match-up (28 : 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 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.

A7R IV 28:06 A850

How about other alternatives? Do the specifications of the Sony A7R IV and the Sony A850 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7R IV or the A850. 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 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499 amazon.com
2.
 
Sony A8503/5....75/100..4.5/5 Aug 2009 1,999ebay.com
3.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
4.
 
Sony A7R V............ Oct 2022 3,899 amazon.com
5.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
6.
 
Sony A7S III..+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
7.
 
Sony A9 II....5/590/1005/55/5 Oct 2019 4,499 amazon.com
8.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
9.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
10.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
11.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
12.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
13.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 2,999ebay.com
14.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
15.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799ebay.com
16.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399ebay.com
17.
 
Sony A900..+ +..+ +4.5/55/5 Sep 2008 2,999ebay.com
Notes: (+ +) 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Check A7R IV price at
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Check A850 offers at
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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Sony A7R IV vs Sony A850

    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 IV Sony A850
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Sony E mount lenses Sony A mount lenses
    Launch Date July 2019 August 2009
    Launch Price USD 3,499 USD 1,999
    Sensor Specs Sony A7R IV Sony A850
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor Full Frame Sensor
    Sensor Size 35.7 x 23.8 mm 35.9 x 24.0 mm
    Sensor Area 849.66 mm2 861.6 mm2
    Sensor Diagonal 42.9 mm 43.2 mm
    Crop Factor 1.0x 1.0x
    Sensor Resolution 60.2 Megapixels 24.4 Megapixels
    Image Resolution 9504 x 6336 pixels 6048 x 4032 pixels
    Pixel Pitch 3.76 μm 5.94 μm
    Pixel Density 7.09 MP/cm2 2.83 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video no Video
    ISO Setting 100 - 32,000 ISO 200 - 3,200 ISO
    ISO Boost 50 - 102,400 ISO 100 - 6,400 ISO
    Image Processor BIONZ X BIONZ
    DXO Sensor Quality (score) 99 79
    DXO Color Depth (bits) 26.0 23.8
    DXO Dynamic Range (EV) 14.8 12.2
    DXO Low Light (ISO) 3344 1415
    Screen Specs Sony A7R IV Sony A850
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.78x 0.74x
    Viewfinder Resolution 5760k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1440k dots 922k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Sony A7R IV Sony A850
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 10 shutter flaps/s 3 shutter flaps/s
    Electronic ShutterYESno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards CF or MS cards
    Single or Dual Card Slots Dual card slots Dual card slots
    Connectivity Specs Sony A7R IV Sony A850
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Sony A7R IV Sony A850
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type NP-FZ100 NP-FM500H
    Battery Life (CIPA)670 shots per charge880 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    156 x 117 x 82 mm
    (6.1 x 4.6 x 3.2 in)
    Camera Weight 665 g (23.5 oz) 895 g (31.6 oz)
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