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Sony A7R III vs Panasonic FZ300

The Sony Alpha A7R III and the Panasonic Lumix DMC-FZ300 (labelled Panasonic FZ330 in some countries) are two digital cameras that were revealed to the public, respectively, in October 2017 and July 2015. The A7R III is a mirrorless interchangeable lens camera, while the FZ300 is a fixed lens compact. The cameras are based on a full frame (A7R III) and a 1/2.3-inch (FZ300) sensor. The Sony has a resolution of 42.2 megapixels, whereas the Panasonic provides 12 MP.

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

Headline Specifications
Sony A7R III
versus
Panasonic FZ300
Sony A7R III   Panasonic FZ300
Mirrorless system camera Fixed lens compact camera
Sony E mount lenses 25-600mm f/2.8
42.2 MP – Full Frame sensor 12 MP – 1/2.3" sensor
4K/30p Video 4K/30p Video
ISO 100-32,000 (50 - 102,400) ISO 100-6,400
Electronic viewfinder (3686k dots) Electronic viewfinder (1440k dots)
3.0" LCD – 1440k dots 3.0" LCD – 1040k dots
Tilting touchscreen Swivel touchscreen
10 shutter flaps per second 12 shutter flaps per second
In-body stabilizationLens-based stabilization
Weathersealed bodyWeathersealed body
650 shots per battery charge380 shots per battery charge
127 x 96 x 74 mm, 650 g 132 x 92 x 117 mm, 691 g
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Check A7R III offers at
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Check FZ300 price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R III and the Panasonic Lumix DMC-FZ300? 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 Sony A7R III and the Panasonic FZ300 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Sony A7R III vs Panasonic FZ300
Compare A7R III versus FZ300 top
Comparison A7R III or FZ300 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R III and the Panasonic FZ300 are of equal size. 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 and possibly misleading, as the FZ300 has a lens built in, whereas the A7R 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 A7R III and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the A7R III gets 650 shots out of its Sony NP-FZ100 battery, while the FZ300 can take 380 images on a single charge of its Panasonic DMW-BLC12 power pack. The power pack in the A7R III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 (USD)
Street
Price
1.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
2.
 
Panasonic FZ300 132 mm 92 mm 117 mm 691 g 380 Y Jul 2015 599 amazon.com
3.
 
Canon SX60 128 mm 93 mm 114 mm 650 g 340 n Sep 2014 549ebay.com
4.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
5.
 
Panasonic FZ100 124 mm 82 mm 92 mm 540 g 410 n Jul 2010 499ebay.com
6.
 
Panasonic FZ150 124 mm 82 mm 92 mm 528 g 410 n Aug 2011 499ebay.com
7.
 
Panasonic FZ200 125 mm 87 mm 110 mm 588 g 540 n Jul 2012 599ebay.com
8.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 amazon.com
9.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
10.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
11.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
12.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
13.
 
Sony A7R IVA 129 mm 96 mm 78 mm 665 g 670 Y Apr 2021 3,499 amazon.com
14.
 
Sony A7R V 131 mm 97 mm 82 mm 723 g 530 Y Oct 2022 3,899 amazon.com
15.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 amazon.com
16.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
17.
 
Sony HX400V 130 mm 93 mm 103 mm 660 g 300 n Feb 2014 499ebay.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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The FZ300 was launched at a lower price than the A7R III, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The 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.

Of the two cameras under consideration, the Sony A7R III features a full frame sensor and the Panasonic FZ300 a 1/2.3-inch sensor. The sensor area in the FZ300 is 97 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 5.6. The sensor in the A7R III has a native 3:2 aspect ratio, while the one in the FZ300 offers a 4:3 aspect.

Sony A7R III and Panasonic FZ300 sensor measures

With 42.2MP, the A7R III offers a higher resolution than the FZ300 (12MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 1.53μm for the FZ300) due to its larger sensor. Moreover, the A7R III is a much more recent model (by 2 years and 3 months) than the FZ300, and its sensor will have benefitted from technological advances during this time that further 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 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III 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 FZ300 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 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the FZ300, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Sony Alpha A7R III 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 Panasonic Lumix DMC-FZ300 are ISO 100 to ISO 6400 (no boost).

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.

A7R III versus FZ300 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 III provides substantially higher image quality than the FZ300, with an overall score that is 62 points higher. This advantage is based on 6.7 bits higher color depth, 3.7 EV in additional dynamic range, and 5.2 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
2.
 
Panasonic FZ300 1/2.3 12.0 4000 30004K/30p19.311.09738
3.
 
Canon SX60 1/2.3 14.2 4608 30721080/60p19.210.812739
4.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
5.
 
Panasonic FZ100 1/2.3 14.0 4320 32401080/60i19.410.730639
6.
 
Panasonic FZ150 1/2.3 12.0 4000 30001080/60p19.410.913240
7.
 
Panasonic FZ200 1/2.3 12.0 4000 30001080/60p19.110.811437
8.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
9.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
10.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
11.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
12.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
13.
 
Sony A7R IVA 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 III Full Frame 12.0 4240 28324K/120p23.713.9252086
16.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
17.
 
Sony HX400V 1/2.3 20.2 5184 38881080/60p20.111.462945
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 have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (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 consideration are similar with respect to both having an electronic viewfinder. However, the one in the A7R III offers a substantially higher resolution than the one in the FZ300 (3686k vs 1440k dots). The following table reports on some other key feature differences and similarities of the Sony A7R III, the Panasonic FZ300, 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 III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
2.
 
Panasonic FZ3001440 n3.0 / 1040 swivel Y 1/4000s 12.0/s Y Y
3.
 
Canon SX60922 n3.0 / 922 swivel n 1/2000s 6.4/s Y Y
4.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
5.
 
Panasonic FZ100202 n3.0 / 460 swivel n 1/2000s 11.0/s Y Y
6.
 
Panasonic FZ150202 n3.0 / 460 swivel n 1/2000s 12.0/s Y Y
7.
 
Panasonic FZ2001312 n3.0 / 460 swivel n 1/4000s 12.0/s Y Y
8.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
9.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
10.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
11.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
12.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A7R IVA5760 n3.0 / 2340 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 III9440 n3.0 / 1440 swivel Y 1/8000s 10.0/s n Y
16.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
17.
 
Sony HX400V210 n3.0 / 921 tilting n 1/4000s 10.0/s Y 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 FZ300 has one, while the A7R III does not. While the built-in flash of the FZ300 is not very powerful, it can at times be useful as a fill-in light.

The FZ300 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 A7R III does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Sony A7R III and the Panasonic FZ300 both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The A7R III writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the FZ300 uses SDXC cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the FZ300 only has one slot. The A7R III supports UHS-II cards (on its first slot), while the FZ300 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 Sony Alpha A7R III and Panasonic Lumix DMC-FZ300 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 IIIYstereo / monoYYmicro3.1YYY
2.
 
Panasonic FZ300Ystereo / monoY-mini2.0Y--
3.
 
Canon SX60Ystereo / monoY-mini2.0YY-
4.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
5.
 
Panasonic FZ100Ystereo / mono--mini2.0---
6.
 
Panasonic FZ150Ystereo / ---mini2.0---
7.
 
Panasonic FZ200Ystereo / monoY-mini2.0---
8.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
9.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
10.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
11.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
12.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
13.
 
Sony A7R IVAYstereo / monoYYmicro3.2YYY
14.
 
Sony A7R VYstereo / monoYYfull3.2Y-Y
15.
 
Sony A7S IIIYstereo / monoYYfull3.2Y-Y
16.
 
Sony A9Ystereo / monoYYmicro2.0YYY
17.
 
Sony HX400VYstereo / mono--micro2.0YY-

Studio photographers will appreciate that the Sony A7R III (unlike the FZ300) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The FZ300 is a recent model that features in the current product line-up of Panasonic. In contrast, the A7R III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R III was succeeded by the Sony A7R IV. Further information on the features and operation of the A7R III and FZ300 can be found, respectively, in the Sony A7R III Manual (free pdf) or the online Panasonic FZ300 Manual.

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Review summary

So how do things add up? Which of the two cameras – the Sony A7R III or the Panasonic FZ300 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Sony Alpha A7R III:

  • More detail: Offers more megapixels (42.2 vs 12MP) with a 91% higher linear resolution.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (62 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (6.7 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (3.7 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (5.2 stops ISO advantage).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 1440k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (650 versus 380) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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 modern: Reflects 2 years and 3 months of technical progress since the FZ300 launch.

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Arguments in favor of the Panasonic Lumix DMC-FZ300:

  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Ready to shoot: Has an integrated lens, whereas the A7R III necessitates an extra lens.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been around for much longer (launched in July 2015).

If the count of relative strengths (bullet points above) is taken as a measure, the A7R III is the clear winner of the match-up (22 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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 III 22:07 FZ300

How about other alternatives? Do the specifications of the Sony A7R III and the Panasonic FZ300 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Superzoom 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 says little about, for example, the shooting experience and imaging performance of the A7R III and the FZ300 in practical situations. 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 adjacent summary-table relays the overall verdicts of several of the most popular 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 (USD)
Street
Price
1.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
2.
 
Panasonic FZ300..+ +....4.5/54.5/5 Jul 2015 599 amazon.com
3.
 
Canon SX603/5+ +..75/1004/54.5/5 Sep 2014 549ebay.com
4.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
5.
 
Panasonic FZ100..+....4.5/54.5/5 Jul 2010 499ebay.com
6.
 
Panasonic FZ1503/5+ +..76/1004/54.5/5 Aug 2011 499ebay.com
7.
 
Panasonic FZ2003/5+ +..80/1004.5/54.5/5 Jul 2012 599ebay.com
8.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 amazon.com
9.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
10.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
11.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
12.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
13.
 
Sony A7R IVA5/5+4.5/591/1004.5/55/5 Apr 2021 3,499 amazon.com
14.
 
Sony A7R V5/5+ +4.5/592/100.... Oct 2022 3,899 amazon.com
15.
 
Sony A7S III4.5/5+ +5/591/1004.5/55/5 Jul 2020 3,499 amazon.com
16.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
17.
 
Sony HX400V4/5+ +....4/54/5 Feb 2014 499ebay.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. 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. 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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Check FZ300 price 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 III vs Panasonic FZ300

    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 III Panasonic FZ300
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Sony E mount lenses 25-600mm f/2.8
    Launch Date October 2017 July 2015
    Launch Price USD 3,199 USD 599
    Sensor Specs Sony A7R III Panasonic FZ300
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format Full Frame Sensor 1/2.3" Sensor
    Sensor Size 35.9 x 24.0 mm 6.17 x 4.55 mm
    Sensor Area 861.6 mm2 28.0735 mm2
    Sensor Diagonal 43.2 mm 7.7 mm
    Crop Factor 1.0x 5.6x
    Sensor Resolution 42.2 Megapixels 12 Megapixels
    Image Resolution 7952 x 5304 pixels 4000 x 3000 pixels
    Pixel Pitch 4.52 μm 1.53 μm
    Pixel Density 4.90 MP/cm2 42.74 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 100 - 32,000 ISO 100 - 6,400 ISO
    ISO Boost 50 - 102,400 ISO no Enhancement
    Image Processor BIONZ X Venus
    DXO Sensor Quality (score) 100 38
    DXO Color Depth (bits) 26.0 19.3
    DXO Dynamic Range (EV) 14.7 11.0
    DXO Low Light (ISO) 3523 97
    Screen Specs Sony A7R III Panasonic FZ300
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x 0.70x
    Viewfinder Resolution 3686k dots 1440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1440k dots 1040k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Sony A7R III Panasonic FZ300
    Focus System On-Sensor Phase-detect Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 10 shutter flaps/s 12 shutter flaps/s
    Electronic ShutterYESup to 1/16000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationLens-based stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium MS or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Single UHS-II UHS-I
    Connectivity Specs Sony A7R III Panasonic FZ300
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Sony A7R III Panasonic FZ300
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Sony NP-FZ100 Panasonic DMW-BLC12
    Battery Life (CIPA)650 shots per charge380 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    132 x 92 x 117 mm
    (5.2 x 3.6 x 4.6 in)
    Camera Weight 650 g (22.9 oz) 691 g (24.4 oz)
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