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Nikon D300S vs Sony A7R III

The Nikon D300S and the Sony Alpha A7R III are two enthusiast cameras that were officially introduced, respectively, in July 2009 and October 2017. The D300S is a DSLR, while the A7R III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D300S) and a full frame (A7R III) sensor. The Nikon has a resolution of 12.2 megapixels, whereas the Sony provides 42.2 MP.

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

Headline Specifications
Nikon D300S   Sony A7R III
Nikon D300S Sony A7R III
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
12.2 MP, APS-C Sensor 42.2 MP, Full Frame Sensor
720/24p Video 4K/30p Video
ISO 200-3200 (100-6400) ISO 100-32000 (50-102400)
Optical viewfinder Electronic viewfinder (3686k dots)
3.0" LCD, 920k dots 3.0" LCD, 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
7 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
950 shots per battery charge650 shots per battery charge
147 x 115 x 81 mm, 938 g 127 x 96 x 74 mm, 650 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D300S and the Sony Alpha A7R III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison: Nikon D300S vs Sony A7R III

The side-by-side display below illustrates the physical size and weight of the Nikon D300S and the Sony A7R III. 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 Nikon D300S vs Sony A7R III
Compare D300S versus A7R III top
Comparison D300S or A7R III 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 is notably smaller (28 percent) than the Nikon D300S. Moreover, the A7R III is markedly lighter (31 percent) than the D300S. 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D300S) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the A7R III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the D300S gets 950 shots out of its EN-EL3e battery, while the A7R III can take 650 images on a single charge of its NP-FZ100 power pack. The power pack in the A7R III can be charged via the USB port, 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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D300S» 5.8 in 4.5 in 3.2 in 33.1 oz 950 Y Jul 2009 1,799- i Nikon D300S
 
Sony A7R III« 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199 i i Sony A7R III
 
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 i i Nikon D500
 
Nikon D7000« » 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499- i Nikon D7000
 
Nikon D3100« » 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599- i Nikon D3100
 
Nikon D5000« » 5.0 in 4.1 in 3.1 in 20.8 oz 510 n Apr 2009 749- i Nikon D5000
 
Nikon D60« » 5.0 in 3.7 in 2.5 in 18.4 oz 500 n Jan 2008 629- i Nikon D60
 
Nikon D700« » 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999- i Nikon D700
 
Nikon D300« » 5.8 in 4.5 in 2.9 in 32.6 oz 1000 Y Aug 2007 1,799- i Nikon D300
 
Nikon D2Xs« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Jun 2006 4,699- i Nikon D2Xs
 
Nikon D200« » 5.8 in 4.4 in 2.9 in 32.5 oz 400 Y Nov 2005 1,699- i Nikon D200
 
Nikon D2X« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Sep 2004 4,999- i Nikon D2X
 
Sony A7 III« » 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 i i Sony A7 III
 
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499 i i Sony A9
 
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i i Sony A99 II
 
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199- i Sony A7R II
 
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i Sony A7S II
Note: Measurements and pricing do not include easily detachable parts, such as 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 D300S was launched at a markedly lower price (by 44 percent) than the A7R III, 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.

 

Sensor comparison: Nikon D300S vs Sony A7R III

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. 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 Nikon D300S features an APS-C sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 131 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D300S and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the D300S (12.2MP), but the A7R III has smaller individual pixels (pixel pitch of 4.52μm versus 5.53μm for the D300S). Yet, the A7R III is a much more recent model (by 8 years and 2 months) than the D300S, 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 III has no anti-alias filter installed, so that it can capture all the detail its 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 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 cm. The corresponding values for the Nikon D300S are 21.4 x 14.2 inch or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inch or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inch or 36.3 x 24.1 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 D300S, 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 Nikon D300S has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

D300S versus A7R III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the A7R III offers substantially better image quality than the D300S (overall score 30 points higher). The advantage is based on 3.5 bits higher color depth, 2.5 EV in additional dynamic range, and 2.2 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Nikon D300S» APS-C 12.2 4288 2848720/24p22.512.278770Nikon D300S
 
Sony A7R III« Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
 
Nikon D7000« » APS-C 16.1 4928 326410800/24p23.513.9116780Nikon D7000
 
Nikon D3100« » APS-C 14.2 4608 30721080/24p22.511.391967Nikon D3100
 
Nikon D5000« » APS-C 12.2 4288 2848720/24p22.712.586872Nikon D5000
 
Nikon D60« » APS-C 10.0 3872 2592-22.511.456265Nikon D60
 
Nikon D700« » Full Frame 12.1 4256 2832-23.512.2230380Nikon D700
 
Nikon D300« » APS-C 12.2 4288 2848-22.112.067967Nikon D300
 
Nikon D2Xs« » APS-C 12.2 4288 2848-22.210.948959Nikon D2Xs
 
Nikon D200« » APS-C 10.0 3872 2592-22.311.558364Nikon D200
 
Nikon D2X« » APS-C 12.2 4288 2848-22.110.947659Nikon D2X
 
Sony A7 III« » Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
 
Sony A9« » Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
 
Sony A99 II« » Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
 
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
 
Sony A7S II« » Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II

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 A7R III provides a better video resolution than the D300S. It can shoot movie footage at 4K/30p, while the Nikon is limited to 720/24p.

 

Feature comparison: Nikon D300S vs Sony A7R III

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7R III has an electronic viewfinder (3686k dots), while the D300S 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A7R III has a higher magnification than the one of the D300S (0.78x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Nikon D300S, the Sony A7R III, and comparable cameras.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Nikon D300S»optical Y 3.0 920 fixed n 1/8000s 7.0 Y n Nikon D300S
 
Sony A7R III«3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Nikon D500« »optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n Nikon D500
 
Nikon D7000« »optical Y 3.0 921 fixed n 1/8000s 6.0 Y n Nikon D7000
 
Nikon D3100« »optical n 3.0 230 fixed n 1/4000s 3.0 Y n Nikon D3100
 
Nikon D5000« »optical n 2.7 230 full-flex n 1/4000s 4.0 Y n Nikon D5000
 
Nikon D60« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D60
 
Nikon D700« »optical Y 3.0 922 fixed n 1/8000s 8.0 Y n Nikon D700
 
Nikon D300« »optical Y 3.0 922 fixed n 1/8000s 6.0 Y n Nikon D300
 
Nikon D2Xs« »optical Y 2.5 230 fixed n 1/8000s 5.0 n n Nikon D2Xs
 
Nikon D200« »optical Y 2.5 230 fixed n 1/8000s 5.0 Y n Nikon D200
 
Nikon D2X« »optical Y 2.5 235 fixed n 1/8000s 5.0 n n Nikon D2X
 
Sony A7 III« »2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y Sony A7 III
 
Sony A9« »3686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y Sony A9
 
Sony A99 II« »2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Sony A7R II« »2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7S II« »2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II

One difference between the cameras concerns the presence of an on-board flash. The D300S has one, while the A7R III does not. While the built-in flash of the D300S 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 III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Nikon D300S and the Sony A7R III 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 D300S writes its imaging data to Compact Flash or SDXC cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. The A7R III supports UHS-II cards on its first slot and UHS-I on its second one, while the D300S cannot take advantage of Ultra High Speed SD cards.

 

Connectivity comparison: Nikon D300S vs Sony A7R III

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 Nikon D300S and Sony Alpha A7R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Nikon D300S»YstereomonoY-mini2.0---Nikon D300S
 
Sony A7R III«YstereomonoYYmicro3.1YYYSony A7R III
 
Nikon D500« »YstereomonoYYmini3.0YYYNikon D500
 
Nikon D7000« »YmonomonoY-mini2.0---Nikon D7000
 
Nikon D3100« »Ymonomono--mini2.0---Nikon D3100
 
Nikon D5000« »Ymonomono--mini2.0---Nikon D5000
 
Nikon D60« »Y-----2.0---Nikon D60
 
Nikon D700« »Y----mini2.0---Nikon D700
 
Nikon D300« »Y----mini2.0---Nikon D300
 
Nikon D2Xs« »Y-----2.0---Nikon D2Xs
 
Nikon D200« »Y-----2.0---Nikon D200
 
Nikon D2X« »Y-----2.0---Nikon D2X
 
Sony A7 III« »YstereomonoYYmicro3.1YYYSony A7 III
 
Sony A9« »YstereomonoYYmicro2.0YYYSony A9
 
Sony A99 II« »YstereomonoYYmicro2.0YYYSony A99 II
 
Sony A7R II« »YstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7S II« »YstereomonoYYmicro2.0YY-Sony A7S II

It is notable that the A7R III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D300S does not offer wifi capability.

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

The A7R III is a recent model that features in the current product line-up of Sony. In contrast, the D300S has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D300S was succeeded by the Nikon D500. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Sony websites.


Review summary: Nikon D300S vs Sony A7R III

So what conclusions can be drawn? Is there a clear favorite between the Nikon D300S and the Sony A7R III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Nikon D300S:

  • 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 an LCD display on top to control shooting parameters.
  • Longer lasting: Can take more shots (950 versus 650) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (44 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in July 2009).

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Reasons to prefer the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 12.2MP), which boosts linear resolution by 86%.
  • 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 (30 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.5 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/24p).
  • 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 framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 920k 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 burst: Shoots at higher frequency (10 vs 7 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (127x96mm vs 147x115mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 288g or 31 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 8 years and 2 months of technical progress since the D300S launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7R III is the clear winner of the contest (27 : 7 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.

D300S 07:27 A7R III

How about other alternatives? Do the specifications of the Nikon D300S and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best DSLR 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 D300S or the A7R III 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: Nikon D300S vs Sony A7R III

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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D300S»+ +82/1004/55/54.5/5 Jul 2009 1,799- i Nikon D300S
 
Sony A7R III«+ +90/1004.5/55/55/5 Oct 2017 3,199 i i Sony A7R III
 
Nikon D500« »+ +91/1004.5/55/55/5 Jan 2016 1,999 i i Nikon D500
 
Nikon D7000« »-80/1004.5/55/54.5/5 Sep 2010 1,499- i Nikon D7000
 
Nikon D3100« »+ +72/1004.5/55/54.5/5 Aug 2010 599- i Nikon D3100
 
Nikon D5000« »+ +75/1004/55/54.5/5 Apr 2009 749- i Nikon D5000
 
Nikon D60« »80/100+ +4/5o4.5/5 Jan 2008 629- i Nikon D60
 
Nikon D700« »89/100+ +4.5/55/54.5/5 Jul 2008 2,999- i Nikon D700
 
Nikon D300« »+ ++ +5/5o4.5/5 Aug 2007 1,799- i Nikon D300
 
Nikon D2Xs« »---o- Jun 2006 4,699- i Nikon D2Xs
 
Nikon D200« »+ ++ +o5/5- Nov 2005 1,699- i Nikon D200
 
Nikon D2X« »-+ +-o- Sep 2004 4,999- i Nikon D2X
 
Sony A7 III« »+ +89/1005/55/55/5 Feb 2018 1,999 i i Sony A7 III
 
Sony A9« »+ +89/1005/55/55/5 Apr 2017 4,499 i i Sony A9
 
Sony A99 II« »-85/1004.5/54.5/54.5/5 Sep 2016 3,199 i i Sony A99 II
 
Sony A7R II« »+ +90/1005/54.5/55/5 Jun 2015 3,199- i Sony A7R II
 
Sony A7S II« »+-4.5/55/55/5 Sep 2015 2,999 i i Sony A7S II
Notes: (+ +) 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Nikon D300S:
Check Ebay offers
Sony A7R III:
Check Amazon price

Other camera comparisons

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    Specifications: Nikon D300S vs Sony A7R III

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Nikon D300S Sony A7R III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date July 2009 October 2017
    Launch Price USD 1799 USD 3199
    Sensor Specs Nikon D300S Sony A7R III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.8 mm 35.9 x 24.0 mm
    Sensor Area 372.88 mm2 861.6 mm2
    Sensor Diagonal 28.4 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 12.2 Megapixels 42.2 Megapixels
    Image Resolution 4288 x 2848 pixels 7952 x 5304 pixels
    Pixel Pitch 5.53 μm 4.52 μm
    Pixel Density 3.28 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/24p Video 4K/30p Video
    ISO Setting 200-3200 ISO 100-32000 ISO
    ISO Boost 100-6400 ISO 50-102400 ISO
    Image Processor EXPEED BIONZ X
    DXO Sensor Quality (score) 70 100
    DXO Color Depth (bits) 22.5 26.0
    DXO Dynamic Range (EV) 12.2 14.7
    DXO Low Light (ISO) 787 3523
    Screen Specs Nikon D300S Sony A7R III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.63x 0.78x
    Viewfinder Resolution 3686k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 920k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D300S Sony A7R III
    Autofocus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 7 shutter flaps/s 10 shutter flaps/s
    Shutter Life Expectancy150 000 actuations500 000 actuations
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium CF or SDXC cards MS or SDXC cards
    Second Storage Option Dual card slots Dual card slots
    UHS card support no Single UHS-II
    Connectivity Specs Nikon D300S Sony A7R III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Nikon D300S Sony A7R III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type EN-EL3e power pack NP-FZ100 power pack
    Battery Life (CIPA)950 shots per charge650 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 147 x 115 x 81 mm
    (5.8 x 4.5 x 3.2 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 938 g (33.1 oz) 650 g (22.9 oz)

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