Canon G15 vs Nikon D40X
The Canon PowerShot G15 and the Nikon D40X are two digital cameras that were announced, respectively, in September 2012 and March 2007. The G15 is a fixed lens compact, while the D40X is a DSLR. The cameras are based on a 1/1.7-inch (G15) and an APS-C (D40X) sensor. The Canon has a resolution of 12 megapixels, whereas the Nikon provides 10 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 PowerShot G15 and the Nikon D40X? 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 physical size and weight of the Canon G15 and the Nikon D40X 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 width, height and depth measures are rounded to the nearest millimeter.
The D40X can be obtained in two different colors (black, silver), while the G15 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D40X is considerably larger (43 percent) than the Canon G15. In this context, it is worth noting that neither the G15 nor the D40X are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G15 has a lens built in, whereas the D40X is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the D40X and their specifications in the Nikon Lens Catalog.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|1.||Canon G15||107 mm||76 mm||40 mm||352 g||350||n||Sep 2012||499||ebay.com|
|2.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729||ebay.com|
|3.||Canon SX60||128 mm||93 mm||114 mm||650 g||340||n||Sep 2014||549||ebay.com|
|4.||Canon G16||109 mm||76 mm||40 mm||356 g||360||n||Aug 2013||549||ebay.com|
|5.||Canon S120||100 mm||59 mm||29 mm||217 g||230||n||Aug 2013||449||ebay.com|
|6.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429||ebay.com|
|7.||Canon G12||112 mm||76 mm||48 mm||401 g||370||n||Sep 2010||499||ebay.com|
|8.||Fujifilm X20||117 mm||70 mm||57 mm||353 g||270||n||Jan 2013||599||ebay.com|
|9.||Fujifilm X10||117 mm||70 mm||57 mm||350 g||270||n||Sep 2011||599||ebay.com|
|10.||Nikon P7800||119 mm||78 mm||50 mm||399 g||350||n||Sep 2013||549||ebay.com|
|11.||Nikon D3000||126 mm||97 mm||64 mm||536 g||500||n||Jul 2009||599||ebay.com|
|12.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749||ebay.com|
|13.||Nikon D60||126 mm||94 mm||64 mm||522 g||500||n||Jan 2008||629||ebay.com|
|14.||Nikon D40||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499||ebay.com|
|15.||Panasonic LX7||111 mm||68 mm||46 mm||298 g||330||n||Jul 2012||499||ebay.com|
|16.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499||ebay.com|
|17.||Panasonic L10||135 mm||96 mm||78 mm||556 g||450||n||Aug 2007||599||ebay.com|
|Note: 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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G15 was launched at a lower price than the D40X, despite having a lens built in. 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon G15 features a 1/1.7-inch sensor and the Nikon D40X an APS-C sensor. The sensor area in the D40X is 767 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 1.5. The sensor in the G15 has a native 4:3 aspect ratio, while the one in the D40X offers a 3:2 aspect.
Despite having a smaller sensor, the Canon G15 offers a higher resolution of 12 megapixels, compared with 10 MP of the Nikon D40X. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.89μm versus 6.11μm for the D40X). However, it should be noted that the G15 is much more recent (by 5 years and 6 months) than the D40X, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon G15 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G15 for good quality output (200 dots per inch) amounts to 20 x 15 inches or 50.8 x 38.1 cm, for very good quality (250 dpi) 16 x 12 inches or 40.6 x 30.5 cm, and for excellent quality (300 dpi) 13.3 x 10 inches or 33.9 x 25.4 cm. The corresponding values for the Nikon D40X are 19.4 x 13 inches or 49.2 x 32.9 cm for good quality, 15.5 x 10.4 inches or 39.3 x 26.3 cm for very good quality, and 12.9 x 8.6 inches or 32.8 x 21.9 cm for excellent quality prints.
The Canon PowerShot G15 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Nikon D40X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.
In terms of underlying technology, the G15 is build around a CMOS sensor, while the D40X uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the D40X offers substantially better image quality than the G15 (overall score 17 points higher). The advantage is based on 2.5 bits higher color depth, 0.1 EV of lower dynamic range, and 1.6 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|17.||Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras are not only capable of taking still images, but can also record movies. The G15 indeed provides movie recording capabilities, while the D40X does not. The highest resolution format that the G15 can use is 1080/24p.
Beyond body and sensor, cameras can and do differ across a range of features. The G15 and the D40X 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 following table reports on some other key feature differences and similarities of the Canon G15, the Nikon D40X, and comparable cameras.
|1.||Canon G15||optical||n||3.0 / 922||fixed||n||1/4000s||2.1/s||Y||Y|
|2.||Nikon D40X||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|3.||Canon SX60||922||n||3.0 / 922||swivel||n||1/2000s||6.4/s||Y||Y|
|4.||Canon G16||optical||n||3.0 / 922||fixed||n||1/4000s||2.2/s||Y||Y|
|5.||Canon S120||none||n||3.0 / 922||fixed||Y||1/2000s||12.1/s||Y||Y|
|6.||Canon SX50||202||n||3.0 / 461||swivel||n||1/2000s||2.2/s||Y||Y|
|7.||Canon G12||optical||n||2.8 / 461||swivel||n||1/4000s||1.1/s||Y||Y|
|8.||Fujifilm X20||optical||n||2.8 / 460||fixed||n||1/4000s||12.0/s||Y||Y|
|9.||Fujifilm X10||optical||n||2.8 / 460||fixed||n||1/4000s||10.0/s||Y||Y|
|10.||Nikon P7800||921||n||3.0 / 921||swivel||n||1/4000s||8.0/s||Y||Y|
|11.||Nikon D3000||optical||n||3.0 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|12.||Nikon D5000||optical||n||2.7 / 230||full-flex||n||1/4000s||4.0/s||Y||n|
|13.||Nikon D60||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|14.||Nikon D40||optical||n||2.5 / 230||fixed||n||1/4000s||2.5/s||Y||n|
|15.||Panasonic LX7||optional||n||3.0 / 920||fixed||n||1/4000s||11.0/s||Y||Y|
|16.||Panasonic FZ150||202||n||3.0 / 460||swivel||n||1/2000s||12.0/s||Y||Y|
|17.||Panasonic L10||optical||n||2.5 / 207||swivel||n||1/4000s||3.0/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
The G15 writes its imaging data to SDXC cards, while the D40X uses SDHC cards.
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 PowerShot G15 and Nikon D40X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon G15||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|2.||Nikon D40X||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon SX60||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|4.||Canon G16||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|5.||Canon S120||-||stereo / mono||-||-||mini||2.0||Y||-||-|
|6.||Canon SX50||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|7.||Canon G12||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|8.||Fujifilm X20||Y||stereo / mono||-||-||micro||2.0||-||-||-|
|9.||Fujifilm X10||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|10.||Nikon P7800||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|11.||Nikon D3000||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Nikon D5000||Y||mono / mono||-||-||mini||2.0||-||-||-|
|13.||Nikon D60||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Nikon D40||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Panasonic LX7||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|16.||Panasonic FZ150||Y||stereo / -||-||-||mini||2.0||-||-||-|
|17.||Panasonic L10||Y||- / -||-||-||-||2.0||-||-||-|
Both the G15 and the D40X have been discontinued, but can regularly be found used on ebay. The D40X was replaced by the Nikon D60 , while the G15 was followed by the Canon G16. Further information on the features and operation of the G15 and D40X can be found, respectively, in the Canon G15 Manual (free pdf) or the online Nikon D40X Manual.
So what is the bottom line? Is there a clear favorite between the Canon G15 and the Nikon D40X? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon PowerShot G15:
- More detail: Offers more megapixels (12 vs 10MP) with a 7% higher linear resolution.
- Broader imaging potential: Can record not only still images but also 1080/24p movies.
- 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).
- Ready to shoot: Comes with a built-in lens, while the D40X requires a separate lens.
- More compact: Is smaller (107x76mm vs 124x94mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the D40X).
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 5 years and 6 months of technical progress since the D40X launch.
Reasons to prefer the Nikon D40X:
- Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.5 bits more color depth).
- Better low-light sensitivity: Can shoot in dim conditions (1.6 stops ISO advantage).
- Faster burst: Shoots at higher frequency (3 vs 2.1 flaps/sec) to capture the decisive moment.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (520 versus 350) out of a single battery charge.
- More heavily discounted: Has been around for much longer (launched in March 2007).
If the count of relative strengths (bullet points above) is taken as a measure, the G15 emerges as the winner of the contest (10 : 7 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 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.
How about other alternatives? Do the specifications of the Canon G15 and the Nikon D40X place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the G15 or the D40X. 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 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.
|1.||Canon G15||4/5||+||..||76/100||4.5/5||4.5/5||Sep 2012||499||ebay.com|
|2.||Nikon D40X||..||79/100||..||+ +||4/5||4/5||Mar 2007||729||ebay.com|
|3.||Canon SX60||3/5||+ +||..||75/100||4/5||4.5/5||Sep 2014||549||ebay.com|
|4.||Canon G16||4/5||+||..||..||4.5/5||4.5/5||Aug 2013||549||ebay.com|
|5.||Canon S120||..||+ +||..||..||4.5/5||4.5/5||Aug 2013||449||ebay.com|
|6.||Canon SX50||3/5||+ +||..||72/100||4.5/5||4.5/5||Sep 2012||429||ebay.com|
|7.||Canon G12||4/5||+||..||73/100||4.5/5||4.5/5||Sep 2010||499||ebay.com|
|8.||Fujifilm X20||4/5||+ +||..||77/100||4.5/5||5/5||Jan 2013||599||ebay.com|
|9.||Fujifilm X10||..||..||..||76/100||4/5||4.5/5||Sep 2011||599||ebay.com|
|10.||Nikon P7800||3/5||..||..||..||4/5||4.5/5||Sep 2013||549||ebay.com|
|11.||Nikon D3000||..||+||..||72/100||4/5||4.5/5||Jul 2009||599||ebay.com|
|12.||Nikon D5000||..||+ +||..||75/100||4/5||4.5/5||Apr 2009||749||ebay.com|
|13.||Nikon D60||..||80/100||..||+ +||4/5||4.5/5||Jan 2008||629||ebay.com|
|14.||Nikon D40||..||81/100||..||+ +||o||4.5/5||Nov 2006||499||ebay.com|
|15.||Panasonic LX7||3/5||+ +||..||75/100||4/5||4.5/5||Jul 2012||499||ebay.com|
|16.||Panasonic FZ150||3/5||+ +||..||76/100||4/5||4.5/5||Aug 2011||499||ebay.com|
|17.||Panasonic L10||..||85/100||..||+||3.5/5||4/5||Aug 2007||599||ebay.com|
|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. Thus, a score needs to be put into the context of the launch date and the launch price 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, 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? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon G15 vs Nikon D40X
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 G15||Nikon D40X|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28-140mm f/1.8-2.8||Nikon F mount lenses|
|Launch Date||September 2012||March 2007|
|Launch Price||USD 499||USD 729|
|Sensor Specs||Canon G15||Nikon D40X|
|Sensor Format||1/1.7" Sensor||APS-C Sensor|
|Sensor Size||7.6 x 5.7 mm||23.6 x 15.8 mm|
|Sensor Area||43.32 mm2||372.88 mm2|
|Sensor Diagonal||9.5 mm||28.4 mm|
|Sensor Resolution||12 Megapixels||10 Megapixels|
|Image Resolution||4000 x 3000 pixels||3872 x 2592 pixels|
|Pixel Pitch||1.89 μm||6.11 μm|
|Pixel Density||27.70 MP/cm2||2.69 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/24p Video||no Video|
|ISO Setting||80 - 12,800 ISO||100 - 1,600 ISO|
|ISO Boost||no Enhancement||100 - 3,200 ISO|
|Image Processor||DIGIC 5||EXPEED|
|DXO Sensor Quality (score)||46||63|
|DXO Color Depth (bits)||19.9||22.4|
|DXO Dynamic Range (EV)||11.5||11.4|
|DXO Low Light (ISO)||165||516|
|Screen Specs||Canon G15||Nikon D40X|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||80%||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||922k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon G15||Nikon D40X|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Continuous Shooting||2.1 shutter flaps/s||3 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDHC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon G15||Nikon D40X|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon G15||Nikon D40X|
|Battery Life (CIPA)||350 shots per charge||520 shots per charge|
107 x 76 x 40 mm
(4.2 x 3.0 x 1.6 in)
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
|Camera Weight||352 g (12.4 oz)||522 g (18.4 oz)|
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