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Nikon D300 vs Sony A7R

The Nikon D300 and the Sony Alpha A7R are two enthusiast cameras that were revealed to the public, respectively, in August 2007 and October 2013. The D300 is a DSLR, while the A7R is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D300) and a full frame (A7R) sensor. The Nikon has a resolution of 12.2 megapixels, whereas the Sony provides 36.2 MP.

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

Headline Specifications
Nikon D300
versus
Sony A7R
Nikon D300   Sony A7R
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
12.2 MP – APS-C sensor 36.2 MP – Full Frame sensor
no Video 1080/60p Video
ISO 200-3,200 (100 - 6,400) ISO 100-25,600 (50 - 51,200)
Optical viewfinder Electronic viewfinder (2400k dots)
3.0" LCD – 922k dots 3.0" LCD – 1230k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
6 shutter flaps per second 4 shutter flaps per second
Weathersealed bodyWeathersealed body
1000 shots per battery charge340 shots per battery charge
147 x 114 x 74 mm, 925 g 127 x 94 x 48 mm, 465 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D300 and the Sony Alpha A7R? 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 Nikon D300 and the Sony A7R. 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 dimensions are rounded to the nearest millimeter.

Size Nikon D300 vs Sony A7R
Compare D300 versus A7R top
Comparison D300 or A7R rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R is notably smaller (29 percent) than the Nikon D300. Moreover, the A7R is substantially lighter (50 percent) than the D300. 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 (D300) and the Sony FE Lens Catalog (A7R). Mirrorless cameras, such as the A7R, 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 D300 gets 1000 shots out of its Nikon EN-EL3e battery, while the A7R can take 340 images on a single charge of its Sony NP-FW50 power pack. The power pack in the A7R 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, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D300 147 mm 114 mm 74 mm 925 g 1000 Y Aug 2007 1,799ebay.com
2.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 2,299ebay.com
3.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
4.
 
Nikon D300S 147 mm 115 mm 81 mm 938 g 950 Y Jul 2009 1,799ebay.com
5.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
6.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299ebay.com
7.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 2,999ebay.com
8.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
9.
 
Nikon D2Xs 158 mm 150 mm 86 mm 1252 g 3800 Y Jun 2006 4,699ebay.com
10.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
11.
 
Nikon D200 147 mm 113 mm 74 mm 920 g 400 Y Nov 2005 1,699ebay.com
12.
 
Nikon D2X 158 mm 150 mm 86 mm 1252 g 3800 Y Sep 2004 4,999ebay.com
13.
 
Sony A7C II 124 mm 71 mm 63 mm 514 g 540 Y Aug 2023 2,199 amazon.com
14.
 
Sony A7 IV 131 mm 96 mm 80 mm 659 g 580 Y Oct 2021 2,499 amazon.com
15.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199ebay.com
16.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 2,499ebay.com
17.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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 D300 was launched at a somewhat lower price (by 22 percent) than the A7R, 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. 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 sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D300 features an APS-C sensor and the Sony A7R a full frame sensor. The sensor area in the A7R 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 D300 and Sony A7R sensor measures

With 36.2MP, the A7R offers a higher resolution than the D300 (12.2MP), but the A7R has smaller individual pixels (pixel pitch of 4.88μm versus 5.53μm for the D300). Yet, the A7R is a much more recent model (by 6 years and 1 month) than the D300, 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 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Nikon D300 are 21.4 x 14.2 inches or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inches or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inches or 36.3 x 24.1 cm for excellent quality prints.

The Nikon D300 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 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

Technology-wise, both cameras are equipped with CMOS (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.

D300 versus A7R 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 consideration, the A7R offers substantially better image quality than the D300 (overall score 28 points higher). The advantage is based on 3.5 bits higher color depth, 2.1 EV in additional dynamic range, and 2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D300 APS-C 12.2 4288 2848none22.112.067967
2.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
3.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
4.
 
Nikon D300S APS-C 12.2 4288 2848720/24p22.512.278770
5.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
6.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
7.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
8.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
9.
 
Nikon D2Xs APS-C 12.2 4288 2848none22.210.948959
10.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
11.
 
Nikon D200 APS-C 10.0 3872 2592none22.311.558364
12.
 
Nikon D2X APS-C 12.2 4288 2848none22.110.947659
13.
 
Sony A7C II Full Frame 32.7 7008 46724K/60p25.414.7323796
14.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
15.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
16.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
17.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. The A7R indeed provides for movie recording, while the D300 does not. The highest resolution format that the A7R can use is 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R has an electronic viewfinder (2400k dots), while the D300 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 has a higher magnification than the one of the D300 (0.71x vs 0.63x), 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 Nikon D300 and Sony A7R along with similar information for a selection of comparators.

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Core Features
# image 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.
 
Nikon D300optical Y3.0 / 922 fixed n 1/8000s 6.0/s Y n
2.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
3.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
4.
 
Nikon D300Soptical Y3.0 / 920 fixed n 1/8000s 7.0/s Y n
5.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
6.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
7.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
8.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
9.
 
Nikon D2Xsoptical Y2.5 / 230 fixed n 1/8000s 5.0/s n n
10.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
11.
 
Nikon D200optical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
12.
 
Nikon D2Xoptical Y2.5 / 235 fixed n 1/8000s 5.0/s n n
13.
 
Sony A7C II2360 n3.0 / 1037 swivel Y 1/4000s 10.0/s n Y
14.
 
Sony A7 IV3686 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
15.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
17.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The D300 has one, while the A7R does not. While the built-in flash of the D300 is not very powerful, it can at times be useful as a fill-in light.

The Nikon D300 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 D300 writes its imaging data to Compact Flash cards, while the A7R uses SDXC or Memory Stick PRO Duo 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 Nikon D300 and Sony Alpha A7R and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D300Y- / ---mini2.0---
2.
 
Sony A7RYstereo / monoYYmicro2.0YY-
3.
 
Nikon D7000Ymono / monoY-mini2.0---
4.
 
Nikon D300SYstereo / monoY-mini2.0---
5.
 
Nikon D60Y- / ----2.0---
6.
 
Nikon D90Ymono / mono--mini2.0---
7.
 
Nikon D700Y- / ---mini2.0---
8.
 
Nikon D40XY- / ----2.0---
9.
 
Nikon D2XsY- / ----2.0---
10.
 
Nikon D80Y- / ----2.0---
11.
 
Nikon D200Y- / ----2.0---
12.
 
Nikon D2XY- / ----2.0---
13.
 
Sony A7C IIYstereo / monoYYmicro3.2Y-Y
14.
 
Sony A7 IVYstereo / monoYYfull3.2Y-Y
15.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A7SYstereo / monoYYmicro2.0YY-
17.
 
Sony A7Ystereo / monoYYmicro2.0YY-
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It is notable that the A7R offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D300 does not provide wifi capability.

Studio photographers will appreciate that the Nikon D300 (unlike the A7R) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D300 and the A7R have been discontinued, but can regularly be found used on ebay. The D300 was replaced by the Nikon D300S, while the A7R was followed by the Sony A7R II. Further information on the features and operation of the D300 and A7R can be found, respectively, in the Nikon D300 Manual (free pdf) or the online Sony A7R Manual.

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Review summary

So what conclusions can be drawn? Is the Nikon D300 better than the Sony A7R or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Arguments in favor of the Nikon D300:

  • 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.
  • Faster burst: Shoots at higher frequency (6 vs 4 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (1000 versus 340) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More affordable: Was introduced into a lower priced segment (22 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2007).

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Advantages of the Sony Alpha A7R:

  • More detail: Has more megapixels (36.2 vs 12.2MP), which boosts linear resolution by 72%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (28 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 (2.1 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (1230k vs 922k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More compact: Is smaller (127x94mm vs 147x114mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 460g or 50 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • 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.
  • More modern: Reflects 6 years and 1 month of technical progress since the D300 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A7R is the clear winner of the contest (18 : 10 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D300 10:18 A7R

How about other alternatives? Do the specifications of the Nikon D300 and the Sony A7R 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D300 or the A7R. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D300..+ +..+ +5/54.5/5 Aug 2007 1,799ebay.com
2.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 2,299ebay.com
3.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
4.
 
Nikon D300S5/5+ +..82/1004/54.5/5 Jul 2009 1,799ebay.com
5.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
6.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 1,299ebay.com
7.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 2,999ebay.com
8.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
9.
 
Nikon D2Xs............ Jun 2006 4,699ebay.com
10.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
11.
 
Nikon D200..+ +..+ +o.. Nov 2005 1,699ebay.com
12.
 
Nikon D2X......+ +.... Sep 2004 4,999ebay.com
13.
 
Sony A7C II4/5..4/587/1004.5/54.5/5 Aug 2023 2,199 amazon.com
14.
 
Sony A7 IV5/5+ +4.5/589/1004.5/54.5/5 Oct 2021 2,499 amazon.com
15.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 3,199ebay.com
16.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 2,499ebay.com
17.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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: Nikon D300 vs Sony A7R

    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 D300 Sony A7R
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date August 2007 October 2013
    Launch Price USD 1,799 USD 2,299
    Sensor Specs Nikon D300 Sony A7R
    Sensor Technology CMOS 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 36.2 Megapixels
    Image Resolution 4288 x 2848 pixels 7360 x 4912 pixels
    Pixel Pitch 5.53 μm 4.88 μm
    Pixel Density 3.28 MP/cm2 4.20 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 200 - 3,200 ISO 100 - 25,600 ISO
    ISO Boost 100 - 6,400 ISO 50 - 51,200 ISO
    Image Processor EXPEED BIONZ X
    DXO Sensor Quality (score) 67 95
    DXO Color Depth (bits) 22.1 25.6
    DXO Dynamic Range (EV) 12.0 14.1
    DXO Low Light (ISO) 679 2746
    Screen Specs Nikon D300 Sony A7R
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.63x 0.71x
    Viewfinder Resolution 2400k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 922k dots 1230k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Nikon D300 Sony A7R
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 4 shutter flaps/s
    Shutter Life Expectancy150 000 actuations250 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Nikon D300 Sony A7R
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port no MIC socket 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
    Body Specs Nikon D300 Sony A7R
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL3e Sony NP-FW50
    Battery Life (CIPA)1000 shots per charge340 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 147 x 114 x 74 mm
    (5.8 x 4.5 x 2.9 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 925 g (32.6 oz) 465 g (16.4 oz)
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    Check D300 offers at
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    Check A7R offers at
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