Canon 30D vs Nikon D3X
The Canon EOS 30D and the Nikon D3X are two digital cameras that were officially introduced, respectively, in February 2006 and December 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (30D) and a full frame (D3X) sensor. The Canon has a resolution of 8.2 megapixels, whereas the Nikon provides 24.4 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 30D and the Nikon D3X? 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.
The side-by-side display below illustrates the physical size and weight of the Canon 30D and the Nikon D3X. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D3X is considerably larger (65 percent) than the Canon 30D. Moreover, the D3X is substantially heavier (61 percent) than the 30D. It is noteworthy in this context that the D3X is splash and dust-proof, while the 30D does not feature any corresponding weather-sealing.
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 Canon EF Lens Catalog (30D) and the Nikon Lens Catalog (D3X).
Concerning battery life, the 30D gets 750 shots out of its BP-511A battery, while the D3X can take 4400 images on a single charge of its EN-EL4a power pack. As can be seen in the images above, the D3X has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the 30D, Canon provides the BG-E2N vertical grip as an optional accessory (see here on eBay).
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399|
|2.||Nikon D3X||160 mm||157 mm||88 mm||1260 g||4400||Y||Dec 2008||7,999|
|3.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|4.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399|
|5.||Canon 7D||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699|
|6.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299|
|7.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|8.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|9.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|10.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499|
|11.||Canon 10D||150 mm||107 mm||75 mm||850 g||500||n||Feb 2003||1,999|
|12.||Canon Rebel||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899|
|13.||Nikon D5||160 mm||159 mm||92 mm||1415 g||3780||Y||Jan 2016||6,499|
|14.||Nikon D4S||160 mm||157 mm||91 mm||1350 g||3020||Y||Feb 2014||6,499|
|15.||Nikon D750||141 mm||113 mm||78 mm||750 g||1230||Y||Sep 2014||2,299|
|16.||Nikon D4||160 mm||157 mm||91 mm||1340 g||2600||Y||Jan 2012||5,999|
|17.||Nikon D3||160 mm||157 mm||88 mm||1300 g||4300||Y||Aug 2007||4,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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 30D was launched at a markedly lower price (by 83 percent) than the D3X, 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.
The size of the imaging sensor is a crucial determinant 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 30D features an APS-C sensor and the Nikon D3X a full frame sensor. The sensor area in the D3X is 155 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 24.4MP, the D3X offers a higher resolution than the 30D (8.2MP), but the D3X has smaller individual pixels (pixel pitch of 5.94μm versus 6.42μm for the 30D). Yet, the D3X is a much more recent model (by 2 years and 9 months) than the 30D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Nikon D3X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D3X for good quality output (200 dots per inch) amounts to 30.2 x 20.2 inches or 76.8 x 51.2 cm, for very good quality (250 dpi) 24.2 x 16.1 inches or 61.4 x 41 cm, and for excellent quality (300 dpi) 20.2 x 13.4 inches or 51.2 x 34.1 cm. The corresponding values for the Canon 30D are 17.5 x 11.7 inches or 44.5 x 29.7 cm for good quality, 14 x 9.3 inches or 35.6 x 23.7 cm for very good quality, and 11.7 x 7.8 inches or 29.7 x 19.8 cm for excellent quality prints.
The Canon EOS 30D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Nikon D3X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 50-6400.
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 D3X offers substantially better image quality than the 30D (overall score 29 points higher). The advantage is based on 3.2 bits higher color depth, 2.9 EV in additional dynamic range, and 1.4 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.
| DXO |
|2.||Nikon D3X||Full Frame||24.4||6048||4032||none||24.7||13.7||1992||88|
|13.||Nikon D5||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88|
|14.||Nikon D4S||Full Frame||16.2||4928||3280||1080/60p||24.4||13.3||3074||89|
|15.||Nikon D750||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93|
|16.||Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89|
|17.||Nikon D3||Full Frame||12.1||4256||2832||none||23.5||12.2||2290||81|
Apart from body and sensor, cameras can and do differ across a variety of features. The 30D and the D3X 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 viewfinder in the D3X offers a wider field of view (100%) than the one in the 30D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the D3X has a higher magnification (0.70x vs 0.56x), 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 Canon 30D and Nikon D3X along with similar information for a selection of comparators.
One difference between the cameras concerns the presence of an on-board flash. The 30D has one, while the D3X does not. While the built-in flash of the 30D is not very powerful, it can at times be useful as a fill-in light.
The Nikon D3X 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.
Concerning the storage of imaging data, both the 30D and the D3X write their files to Compact Flash cards. The D3X features dual card slots, which can be very useful in case a memory card fails. In contrast, the 30D only has one slot.
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 Canon EOS 30D and Nikon D3X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the 30D and the D3X have been discontinued, but can regularly be found used on eBay. The 30D was replaced by the Canon 40D, while the D3X does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Nikon websites.
So what conclusions can be drawn? Is there a clear favorite between the Canon 30D and the Nikon D3X? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS 30D:
- More compact: Is smaller (144x106mm vs 160x157mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 475g or 38 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (83 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2006).
Advantages of the Nikon D3X:
- More detail: Has more megapixels (24.4 vs 8.2MP), which boosts linear resolution by 73%.
- Better image quality: Scores substantially higher (29 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.9 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.4 stops ISO advantage).
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.56x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Gets more shots (4400 versus 750) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 2 years and 9 months of technical progress since the 30D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the D3X is the clear winner of the contest (15 : 5 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.
How about other alternatives? Do the specifications of the Canon 30D and the Nikon D3X place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 30D or the D3X 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.
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], 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.
|1.||Canon 30D||..||+ +||+ +||o||..||Feb 2006||1,399|
|2.||Nikon D3X||..||..||86/100||4/5||5/5||Dec 2008||7,999|
|3.||Canon 70D||5/5||+ +||83/100||4.5/5||5/5||Jul 2013||1,199|
|4.||Canon 60D||5/5||+||79/100||4/5||4.5/5||Aug 2010||1,399|
|5.||Canon 7D||5/5||+ +||84/100||4.5/5||4.5/5||Sep 2009||1,699|
|6.||Canon 50D||..||+ +||+ +||4.5/5||4.5/5||Aug 2008||1,299|
|7.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|8.||Canon XTi||..||+ +||+ +||o||4/5||Aug 2006||799|
|9.||Canon XT||..||80/100||+ +||o||..||Feb 2005||899|
|10.||Canon 20D||..||..||+ +||..||..||Aug 2004||1,499|
|11.||Canon 10D||..||..||+ +||..||..||Feb 2003||1,999|
|12.||Canon Rebel||..||..||+ +||..||..||Aug 2003||899|
|13.||Nikon D5||..||..||89/100||4.5/5||5/5||Jan 2016||6,499|
|14.||Nikon D4S||5/5||..||..||4.5/5||4.5/5||Feb 2014||6,499|
|15.||Nikon D750||5/5||+ +||90/100||4.5/5||4.5/5||Sep 2014||2,299|
|16.||Nikon D4||..||..||..||4.5/5||4.5/5||Jan 2012||5,999|
|17.||Nikon D3||..||..||+ +||5/5||4.5/5||Aug 2007||4,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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.
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon 30D vs Nikon D3X
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 Model||Canon 30D||Nikon D3X|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Nikon F mount lenses|
|Launch Date||February 2006||December 2008|
|Launch Price||USD 1,399||USD 7,999|
|Sensor Specs||Canon 30D||Nikon D3X|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||22.5 x 15.0 mm||35.9 x 24.0 mm|
|Sensor Area||337.5 mm2||861.6 mm2|
|Sensor Diagonal||27 mm||43.2 mm|
|Sensor Resolution||8.2 Megapixels||24.4 Megapixels|
|Image Resolution||3504 x 2336 pixels||6048 x 4032 pixels|
|Pixel Pitch||6.42 μm||5.94 μm|
|Pixel Density||2.43 MP/cm2||2.83 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||no Video|
|ISO Setting||100 - 1,600 ISO||100 - 1,600 ISO|
|ISO Boost||100 - 3,200 ISO||50 - 6,400 ISO|
|Image Processor||DIGIC 2||EXPEED|
|DXO Sensor Quality (score)||59||88|
|DXO Color Depth (bits)||21.5||24.7|
|DXO Dynamic Range (EV)||10.8||13.7|
|DXO Low Light (ISO)||736||1992|
|Screen Specs||Canon 30D||Nikon D3X|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||2.5inch||3.0inch|
|LCD Resolution||230k dots||922k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 30D||Nikon D3X|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||300 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||CF cards||CF cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon 30D||Nikon D3X|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 30D||Nikon D3X|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||750 shots per charge||4400 shots per charge|
144 x 106 x 74 mm
(5.7 x 4.2 x 2.9 in)
160 x 157 x 88 mm
(6.3 x 6.2 x 3.5 in)
|Camera Weight||785 g (27.7 oz)||1260 g (44.4 oz)|
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