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Nikon D300S versus Canon 7D

The Nikon D300S and the Canon EOS 7D are two enthusiast cameras that were officially introduced, respectively, in July 2009 and September 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Nikon has a resolution of 12.2 megapixel, whereas the Canon provides 17.9 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Nikon D300S vs Canon 7D

The physical size and weight of the Nikon D300S and the Canon 7D are illustrated 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. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the D300S – represents 100 percent across all the size and weight measures).

Compare Nikon D300S vs Canon 7D
Compare D300S versus 7D top
Compare D300S and 7D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 7D is somewhat smaller (3 percent) than the Nikon D300S. Moreover, the 7D is markedly lighter (8 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. Yet, since both cameras are based around an APS-C sensor, their respective lenses will tend to have similar dimensions and heft. You can find an overview of optics for the two cameras in the Nikon Lens Catalog (D300S) and the Canon EF Lens Catalog (7D).

Concerning battery life, the D300S gets 950 shots out of its EN-EL3e battery, while the 7D can take 800 images on a single charge of its LP-E6 power pack.

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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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
Canon 7D« 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699- i Canon 7D
Canon 7D II« » 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i i Canon 7D II
Canon 70D« » 5.5 in 4.1 in 3.1 in 26.6 oz 920 Y Jul 2013 1,199- i Canon 70D
Canon 60D« » 5.7 in 4.2 in 3.1 in 26.6 oz 1100 Y Aug 2010 1,399- i Canon 60D
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499- i Canon 5D Mark II
Canon 50D« » 5.7 in 4.3 in 2.9 in 29.0 oz 800 Y Aug 2008 1,299- i Canon 50D
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

The camera’s price is obviously a critical decision-making factor. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 7D was somewhat cheaper (by 6 percent) than the D300S at launch, but both cameras fall into the same price category. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison: Nikon D300S vs Canon 7D

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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the 7D is 11 percent smaller. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.5 (D300S) and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Nikon D300S and Canon 7D sensor measures

Despite having a smaller sensor, the 7D offers a higher resolution of 17.9 megapixel, compared with 12.2 MP of the D300S. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.31μm versus 5.53μm for the D300S). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.

D300S versus 7D 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 review, the D300S has a notably higher overall DXO score than the 7D (overall score 4 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.5 bits higher color depth, 0.5 EV in additional dynamic range, 0.1 stops of reduced 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
Canon 7D« APS-C 17.9 5184 34561080/30p22.011.785466Canon 7D
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270Canon 7D II
Canon 70D« » APS-C 20.0 5472 36481080/30p22.511.692668Canon 70D
Canon 60D« » APS-C 17.9 5184 34561080/30p22.211.581366Canon 60D
Canon 5D Mark II« » Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
Canon 50D« » APS-C 15.1 4752 3168-21.811.469663Canon 50D
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

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the 7D provides a better video resolution than the D300S. It can shoot movie footage at 1080/30p, while the Nikon is limited to 720/24p.

 

Feature comparison: Nikon D300S vs Canon 7D

Apart from body and sensor, cameras can and do differ across a variety of features. The D300S and the 7D are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The adjacent table lists some of the other core features of the Nikon D300S and Canon 7D along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Nikon D300S»optical Y 3.0 920 fixed n 8000 7.0 Y n Nikon D300S
Canon 7D«optical Y 3.0 920 fixed n 8000 8.0 Y n Canon 7D
Canon 7D II« »optical Y 3.0 1040 fixed n 8000 10.0 Y n Canon 7D II
Canon 70D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n Canon 70D
Canon 60D« »optical Y 3.0 1040 swivel n 8000 5.3 Y n Canon 60D
Canon 5D Mark II« »optical Y 3.0 920 fixed n 8000 3.9 n n Canon 5D Mark II
Canon 50D« »optical Y 3.0 920 fixed n 8000 6.3 Y n Canon 50D
Nikon D500« »optical Y 3.2 2359 tilting Y 8000 10.0 n n Nikon D500
Nikon D7000« »optical Y 3.0 921 fixed n 8000 6.0 Y n Nikon D7000
Nikon D3100« »optical n 3.0 230 fixed n 4000 3.0 Y n Nikon D3100
Nikon D5000« »optical n 2.7 230 full-flex n 4000 4.0 Y n Nikon D5000
Nikon D60« »optical n 2.5 230 fixed n 4000 3.0 Y n Nikon D60
Nikon D700« »optical Y 3.0 922 fixed n 8000 8.0 Y n Nikon D700
Nikon D300« »optical Y 3.0 922 fixed n 8000 6.0 Y n Nikon D300
Nikon D2Xs« »optical Y 2.5 230 fixed n 8000 5.0 n n Nikon D2Xs
Nikon D200« »optical Y 2.5 230 fixed n 8000 5.0 Y n Nikon D200
Nikon D2X« »optical Y 2.5 235 fixed n 8000 5.0 n n Nikon D2X

The D300S writes its imaging data to Compact Flash or SDXC cards, while the 7D uses Compact Flash cards. The D300S features dual card slots, which can be very useful in case a memory card fails. In contrast, the 7D only has one slot.

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
Canon 7D«Ymono-Y-mini2.0---Canon 7D
Canon 7D II« »YstereomonoYYmini3.0---Canon 7D II
Canon 70D« »YstereomonoY-mini2.0Y--Canon 70D
Canon 60D« »YmonomonoY-mini2.0---Canon 60D
Canon 5D Mark II« »YmonomonoY-mini2.0---Canon 5D Mark II
Canon 50D« »Y----mini2.0---Canon 50D
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

Both the D300S and the 7D have been discontinued, but can regularly be found used on eBay. The D300S was replaced by the Nikon D500, while the 7D was followed by the Canon 7D Mark II.

Review summary: Nikon D300S vs Canon 7D

So what is the bottom line? Which of the two cameras – the Nikon D300S or the Canon 7D – has the upper hand? The listing below highlights the relative strengths of the two models.

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Advantages of the Nikon D300S:

  • Better image quality: Scores markedly higher (4 points) in the DXO overall assessment.
  • Longer lasting: Can take more shots (950 versus 800) on a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.

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Arguments in favor of the Canon EOS 7D:

  • More detail: Has more megapixels (17.9 vs 12.2MP), which boosts linear resolution by 21%.
  • Better video: Provides higher definition movie capture (1080/30p vs 720/24p).
  • Faster burst: Shoots at higher frequency (8 vs 7 flaps/sec) to capture the decisive moment.

If the count of relative strengths (bullet points above) is taken as a measure, the match-up finishes in a tie (3 points each). 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.

D300S 03:03 7D

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the D300S or the 7D. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

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»HiRec82/1004/55/54.5/5 Jul 2009 1,799- i Nikon D300S
Canon 7D«HiRec84/1004.5/55/54.5/5 Sep 2009 1,699- i Canon 7D
Canon 7D II« »Rec84/1004/55/54.5/5 Sep 2014 1,799 i i Canon 7D II
Canon 70D« »HiRec83/1004.5/54.5/55/5 Jul 2013 1,199- i Canon 70D
Canon 60D« »Rec79/1004/55/54.5/5 Aug 2010 1,399- i Canon 60D
Canon 5D Mark II« »91/10079/1004/55/5- Sep 2008 3,499- i Canon 5D Mark II
Canon 50D« »HiRecHiRec4.5/55/54.5/5 Aug 2008 1,299- i Canon 50D
Nikon D500« »HiRec91/1004.5/55/55/5 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« »HiRec72/1004.5/55/54.5/5 Aug 2010 599- i Nikon D3100
Nikon D5000« »HiRec75/1004/55/54.5/5 Apr 2009 749- i Nikon D5000
Nikon D60« »80/100HiRec4/5rev4.5/5 Jan 2008 629- i Nikon D60
Nikon D700« »89/100HiRec4.5/55/54.5/5 Jul 2008 2,999- i Nikon D700
Nikon D300« »HiRecHiRec5/5rev4.5/5 Aug 2007 1,799- i Nikon D300
Nikon D2Xs« »---rev- Jun 2006 4,699- i Nikon D2Xs
Nikon D200« »HiRecHiRecrev5/5- Nov 2005 1,699- i Nikon D200
Nikon D2X« »-HiRec-rev- Sep 2004 4,999- i Nikon D2X

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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

 

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If the camera you are interested in is not available, please contact me, and I will try to locate and add the respective data to the application.

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