PW

Canon 7D versus Nikon D300S

The Canon EOS 7D and the Nikon D300S are two enthusiast cameras that were revealed to the public, respectively, in September 2009 and July 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 17.9 megapixel, whereas the Nikon provides 12.2 MP.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon 7D and the Nikon D300S. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the 7D – represents 100 percent across all the size and weight measures).

Canon 7D vs Nikon D300S front
7D versus D300S top view
7D and D300S rear side
Body view (7D on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D300S is somewhat larger (3 percent) than the Canon 7D. Moreover, the D300S is slightly heavier (9 percent) than the 7D. 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 Canon EF Lens Catalog (7D) and the Nikon Lens Catalog (D300S).

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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 comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 7D (⇒ rgt) 148 mm 111 mm 74 mm 860 g 800 YES 2009 1,699discont. check
Nikon D300S (⇒ lft) 147 mm 115 mm 81 mm 938 g 950 YES 2009 1,799discont. check
Canon G3 X (⇒ lft | rgt) 123 mm 77 mm 105 mm 733 g 300 YES 2015 999 latest check
Canon 7D II (⇒ lft | rgt) 149 mm 112 mm 78 mm 910 g 670 YES 2014 1,799 latest check
Canon 70D (⇒ lft | rgt) 139 mm 104 mm 79 mm 755 g 920 YES 2013 1,199discont. check
Canon 60D (⇒ lft | rgt) 145 mm 106 mm 79 mm 755 g 1100 YES 2010 1,399discont. check
Canon 5D Mark II (⇒ lft | rgt) 152 mm 114 mm 75 mm 850 g 850 YES 2008 3,499discont. check
Canon 50D (⇒ lft | rgt) 146 mm 108 mm 74 mm 822 g 800 YES 2008 1,299discont. check
Canon 30D (⇒ lft | rgt) 144 mm 106 mm 74 mm 785 g 750 no 2006 1,399discont. check
Nikon D500 (⇒ lft | rgt) 147 mm 115 mm 81 mm 860 g 1240 YES 2016 1,999 latest check
Nikon D7000 (⇒ lft | rgt) 132 mm 105 mm 77 mm 780 g 1050 YES 2010 1,499discont. check
Nikon D3S (⇒ lft | rgt) 160 mm 157 mm 88 mm 1240 g 4200 YES 2009 5,199discont. check
Nikon D300 (⇒ lft | rgt) 147 mm 114 mm 74 mm 925 g 1000 YES 2007 1,799discont. check
Nikon D200 (⇒ lft | rgt) 147 mm 113 mm 74 mm 920 g 400 YES 2005 1,699discont. check
Sony RX10 III (⇒ lft | rgt) 133 mm 94 mm 127 mm 1051 g 420 YES 2016 1,499discont. check

The listed 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. 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 are more costly to manufacture and tent 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 D300S is 12 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (7D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 7D and Nikon D300S sensor measures
Sensor size

Despite having a smaller sensor, the Canon 7D offers a higher resolution of 17.9 megapixel, compared with 12.2 MP of the Nikon 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.

7D versus D300S MP
Sensor resolution

Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 D300S has a markedly higher DXO score than the 7D (overall score 4 points higher), which will translate into better image quality. The 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 7D (⇒ rgt) APS-C 17.9 5184 3456 1080/30p 22.0 11.7 854 66
Nikon D300S (⇒ lft) APS-C 12.2 4288 2848 720/24p 22.5 12.2 787 70
Canon G3 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.4 12.3 521 63
Canon 7D II (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/60p 22.4 11.8 1082 70
Canon 70D (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/30p 22.5 11.6 926 68
Canon 60D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.5 813 66
Canon 5D Mark II (⇒ lft | rgt) Full Frame 21.0 5616 3744 1080/30p 23.7 11.9 1815 79
Canon 50D (⇒ lft | rgt) APS-C 15.1 4752 3168 no 21.8 11.4 696 63
Canon 30D (⇒ lft | rgt) APS-C 8.2 3504 2336 no 21.5 10.8 736 59
Nikon D500 (⇒ lft | rgt) APS-C 20.7 5568 3712 4K/30p 24.0 14.0 1324 83
Nikon D7000 (⇒ lft | rgt) APS-C 16.1 4928 3264 10800/24p 23.5 13.9 1167 80
Nikon D3S (⇒ lft | rgt) Full Frame 12.1 4256 2832 720/24p 23.5 12.0 3253 82
Nikon D300 (⇒ lft | rgt) APS-C 12.2 4288 2848 no 22.1 12.0 679 67
Nikon D200 (⇒ lft | rgt) APS-C 10.0 3872 2592 no 22.3 11.5 583 64
Sony RX10 III (⇒ lft | rgt) 1-inch 20.0 5472 3648 4K/30p 23.1 12.6 472 70

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the 7D provides a higher video resolution than the D300S. It can shoot video footage at 1080/30p, while the Nikon is limited to 720/24p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 7D and the D300S 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 table below summarizes some of the other core capabilities of the Canon 7D and Nikon D300S in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon 7D (⇒ rgt) optical YES 3.0 920 fixed no 8000 8.0 12 no
Nikon D300S (⇒ lft) optical YES 3.0 920 fixed no 8000 7.0 12 no
Canon G3 X (⇒ lft | rgt) no no 3.2 1620 tilting YES 2000 5.9 6.8 YES
Canon 7D II (⇒ lft | rgt) optical YES 3.0 1040 fixed no 8000 10.0 11 no
Canon 70D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 60D (⇒ lft | rgt) optical YES 3.0 1040 swivel no 8000 5.3 13 no
Canon 5D Mark II (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 3.9 no no
Canon 50D (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 6.3 13 no
Canon 30D (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 5.0 13 no
Nikon D500 (⇒ lft | rgt) optical YES 3.2 2359 tilting YES 8000 10.0 no no
Nikon D7000 (⇒ lft | rgt) optical YES 3.0 921 fixed no 8000 6.0 12 no
Nikon D3S (⇒ lft | rgt) optical YES 3.0 921 fixed no 8000 11.0 no no
Nikon D300 (⇒ lft | rgt) optical YES 3.0 922 fixed no 8000 6.0 12 no
Nikon D200 (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 5.0 12 no
Sony RX10 III (⇒ lft | rgt) 2359 YES 3.0 1229 tilting no 2000 14.0 10.8 YES

Both the 7D and the D300S 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.

Summary

So what is the bottom line? Which of the two cameras – the Canon 7D or the Nikon D300S – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Canon EOS 7D:

  • More detail: Offers more megapixels (17.9 vs 12.2MP) with a 21% higher linear resolution.
  • 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.

Reasons to prefer the Nikon D300S:

  • Better image quality: Scores markedly higher (4 points) in the DXO overall evaluation.
  • Longer lasting: Gets more shots (950 versus 800) out of a single battery charge.

If the number of relative strengths (bullet points above) is taken as a guide, the 7D comes out slightly ahead of the D300S (3 : 2 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.

7D 03:02 D300S

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the 7D and the D300S 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. This is where reviews by experts come in. The adjacent table relays the overall verdicts of several of the most popular camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 7D (⇒ rgt) 93/100 HiRec 84/100 4.5/5 5/5 4.5/5 2009 1,699discont. check
Nikon D300S (⇒ lft) 90/100 HiRec 82/100 HiRec 4/5 5/5 4.5/5 2009 1,799discont. check
Canon G3 X (⇒ lft | rgt) Rec - 4.5/5 3.5/5 4/5 2015 999 latest check
Canon 7D II (⇒ lft | rgt) Rec 84/100 Silver 4/5 5/5 4.5/5 2014 1,799 latest check
Canon 70D (⇒ lft | rgt) HiRec 83/100 Gold 4.5/5 4.5/5 5/5 2013 1,199discont. check
Canon 60D (⇒ lft | rgt) 87/100 Rec 79/100 Silver 4/5 5/5 4.5/5 2010 1,399discont. check
Canon 5D Mark II (⇒ lft | rgt) 91/100 79/100 HiRec 4/5 5/5 - 2008 3,499discont. check
Canon 50D (⇒ lft | rgt) 90/100 HiRec HiRec 4.5/5 5/5 4.5/5 2008 1,299discont. check
Canon 30D (⇒ lft | rgt) 87/100 HiRec HiRec reviewed reviewed - 2006 1,399discont. check
Nikon D500 (⇒ lft | rgt) HiRec 91/100 Gold 4.5/5 5/5 5/5 2016 1,999 latest check
Nikon D7000 (⇒ lft | rgt) - 80/100 Silver 4.5/5 5/5 4.5/5 2010 1,499discont. check
Nikon D3S (⇒ lft | rgt) - 89/100 Gold 4.5/5 5/5 5/5 2009 5,199discont. check
Nikon D300 (⇒ lft | rgt) 90/100 HiRec HiRec 5/5 reviewed 4.5/5 2007 1,799discont. check
Nikon D200 (⇒ lft | rgt) 91/100 HiRec HiRec reviewed 5/5 - 2005 1,699discont. check
Sony RX10 III (⇒ lft | rgt) Rec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,499discont. check

Care should be taken when interpreting the review scores above, though. The ratings are only valid when refering to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time 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.

Other comparisons

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 send me an email, and I will try to locate and add the respective data to the application.

vs