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. 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. 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).
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).
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 camera comparisons there.
|Camera Body Specifications
|Nikon D300S (⇒ rgt)||147 mm||115 mm||81 mm||938 g||950||YES||2009||1,799||discont.||check|
|Canon 7D (⇒ lft)||148 mm||111 mm||74 mm||860 g||800||YES||2009||1,699||discont.||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||1,199||discont.||check|
|Canon 60D (⇒ lft | rgt)||145 mm||106 mm||79 mm||755 g||1100||YES||2010||1,399||discont.||check|
|Canon 5D Mark II (⇒ lft | rgt)||152 mm||114 mm||75 mm||850 g||850||YES||2008||3,499||discont.||check|
|Canon 50D (⇒ lft | rgt)||146 mm||108 mm||74 mm||822 g||800||YES||2008||1,299||discont.||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||1,499||discont.||check|
|Nikon D3S (⇒ lft | rgt)||160 mm||157 mm||88 mm||1240 g||4200||YES||2009||5,199||discont.||check|
|Nikon D700 (⇒ lft | rgt)||147 mm||123 mm||77 mm||1074 g||1000||YES||2008||2,999||discont.||check|
|Nikon D90 (⇒ lft | rgt)||132 mm||103 mm||77 mm||703 g||850||no||2008||1,299||discont.||check|
|Nikon D300 (⇒ lft | rgt)||147 mm||114 mm||74 mm||925 g||1000||YES||2007||1,799||discont.||check|
|Nikon D2Xs (⇒ lft | rgt)||157.5 mm||149.5 mm||86 mm||1252 g||3800||YES||2006||4,699||discont.||check|
|Nikon D200 (⇒ lft | rgt)||147 mm||113 mm||74 mm||920 g||400||YES||2005||1,699||discont.||check|
|Nikon D2X (⇒ lft | rgt)||158 mm||150 mm||86 mm||1252 g||3800||YES||2004||4,999||discont.||check|
The price is, of course, an important factor in any camera decision. 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. 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: 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. 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.
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.
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.
For most 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 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Nikon D300S (⇒ rgt)||APS-C||12.2||4288||2848||720/24p||22.5||12.2||787||70|
|Canon 7D (⇒ lft)||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66|
|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|
|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 D700 (⇒ lft | rgt)||Full Frame||12.1||4256||2832||no||23.5||12.2||2303||80|
|Nikon D90 (⇒ lft | rgt)||APS-C||12.2||4288||2848||720/24p||22.7||12.5||977||73|
|Nikon D300 (⇒ lft | rgt)||APS-C||12.2||4288||2848||no||22.1||12.0||679||67|
|Nikon D2Xs (⇒ lft | rgt)||APS-C||12.2||4288||2848||no||22.2||10.9||489||59|
|Nikon D200 (⇒ lft | rgt)||APS-C||10.0||3872||2592||no||22.3||11.5||583||64|
|Nikon D2X (⇒ lft | rgt)||APS-C||12.2||4288||2848||no||22.1||10.9||476||59|
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 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
Beyond body and sensor, cameras can and do differ across a range 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 table below summarizes some of the other core capabilities of the Nikon D300S and Canon 7D in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Nikon D300S (⇒ rgt)||optical||YES||3.0||920||fixed||no||8000||7.0||12||no|
|Canon 7D (⇒ lft)||optical||YES||3.0||920||fixed||no||8000||8.0||12||no|
|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|
|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 D700 (⇒ lft | rgt)||optical||YES||3.0||922||fixed||no||8000||8.0||12||no|
|Nikon D90 (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||4000||4.5||17||no|
|Nikon D300 (⇒ lft | rgt)||optical||YES||3.0||922||fixed||no||8000||6.0||12||no|
|Nikon D2Xs (⇒ lft | rgt)||optical||YES||2.5||230||fixed||no||8000||5.0||no||no|
|Nikon D200 (⇒ lft | rgt)||optical||YES||2.5||230||fixed||no||8000||5.0||12||no|
|Nikon D2X (⇒ lft | rgt)||optical||YES||2.5||235||fixed||no||8000||5.0||no||no|
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 how do things add up? Is there a clear favorite between the Nikon D300S and the Canon 7D? A synthesis of the relative strong points of each of the models is listed below.
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.
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 7D comes out slightly ahead of the D300S (3 : 2 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.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the D300S and the 7D in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. 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. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Nikon D300S (⇒ rgt)||90/100 HiRec||82/100 HiRec||4/5||5/5||4.5/5||2009||1,799||discont.||check|
|Canon 7D (⇒ lft)||93/100 HiRec||84/100||4.5/5||5/5||4.5/5||2009||1,699||discont.||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||1,199||discont.||check|
|Canon 60D (⇒ lft | rgt)||87/100 Rec||79/100 Silver||4/5||5/5||4.5/5||2010||1,399||discont.||check|
|Canon 5D Mark II (⇒ lft | rgt)||91/100||79/100 HiRec||4/5||5/5||-||2008||3,499||discont.||check|
|Canon 50D (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||5/5||4.5/5||2008||1,299||discont.||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||1,499||discont.||check|
|Nikon D3S (⇒ lft | rgt)||-||89/100 Gold||4.5/5||5/5||5/5||2009||5,199||discont.||check|
|Nikon D700 (⇒ lft | rgt)||89/100||HiRec||4.5/5||5/5||4.5/5||2008||2,999||discont.||check|
|Nikon D90 (⇒ lft | rgt)||89/100 HiRec||HiRec||4/5||5/5||4.5/5||2008||1,299||discont.||check|
|Nikon D300 (⇒ lft | rgt)||90/100 HiRec||HiRec||5/5||reviewed||4.5/5||2007||1,799||discont.||check|
|Nikon D2Xs (⇒ lft | rgt)||-||-||-||reviewed||-||2006||4,699||discont.||check|
|Nikon D200 (⇒ lft | rgt)||91/100 HiRec||HiRec||reviewed||5/5||-||2005||1,699||discont.||check|
|Nikon D2X (⇒ lft | rgt)||-||HiRec||-||reviewed||-||2004||4,999||discont.||check|
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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