Nikon D40X vs P950
The Nikon D40X and the Nikon Coolpix P950 are two digital cameras that were officially introduced, respectively, in March 2007 and January 2020. The D40X is a DSLR, while the P950 is a fixed lens compact. The cameras are based on an APS-C (D40X) and a 1/2.3-inch (P950) sensor. The D40X has a resolution of 10 megapixels, whereas the P950 provides 15.9 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 Nikon D40X and the Nikon Coolpix P950? 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 Nikon D40X and the Nikon P950. The two cameras are presented according to their relative size. 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.
The D40X can be obtained in two different colors (black, silver), while the P950 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 P950 is notably larger (32 percent) than the Nikon D40X. In this context, it is worth noting that neither the D40X nor the P950 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the P950 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.
Concerning battery life, the D40X gets 520 shots out of its EN-EL9 battery, while the P950 can take 290 images on a single charge of its EN-EL20a power pack. The power pack in the P950 can be charged via the USB port, which can be very convenient when travelling.
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.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|2.||Nikon P950||140 mm||110 mm||150 mm||1005 g||290||n||Jan 2020||799|
|3.||Leica V-LUX 2||124 mm||80 mm||95 mm||520 g||410||n||Sep 2010||849|
|4.||Nikon B600||122 mm||82 mm||99 mm||500 g||280||n||Jan 2019||349|
|5.||Nikon A1000||114 mm||72 mm||41 mm||330 g||250||n||Jan 2019||429|
|6.||Nikon P1000||146 mm||119 mm||181 mm||1415 g||250||n||Jul 2018||999|
|7.||Nikon P900||140 mm||103 mm||137 mm||899 g||360||n||Mar 2015||599|
|8.||Nikon D3100||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599|
|9.||Nikon D3000||126 mm||97 mm||64 mm||536 g||500||n||Jul 2009||599|
|10.||Nikon D5000||127 mm||104 mm||80 mm||590 g||510||n||Apr 2009||749|
|11.||Nikon D60||126 mm||94 mm||64 mm||522 g||500||n||Jan 2008||629|
|12.||Nikon D90||132 mm||103 mm||77 mm||703 g||850||n||Aug 2008||1,299|
|13.||Nikon D40||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499|
|14.||Nikon D80||132 mm||103 mm||77 mm||668 g||600||n||Aug 2006||999|
|15.||Nikon D50||133 mm||102 mm||76 mm||620 g||400||n||Apr 2005||749|
|16.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599|
|17.||Panasonic L10||135 mm||96 mm||78 mm||556 g||450||n||Aug 2007||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon D40X features an APS-C sensor and the Nikon P950 a 1/2.3-inch sensor. The sensor area in the P950 is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 5.6. The sensor in the D40X has a native 3:2 aspect ratio, while the one in the P950 offers a 4:3 aspect.
Despite having a smaller sensor, the P950 offers a higher resolution of 15.9 megapixels, compared with 10 MP of the 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 1.33μm versus 6.11μm for the D40X). However, it should be noted that the P950 is much more recent (by 12 years and 10 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. Coming back to sensor resolution, it should be mentioned that the P950 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon P950 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the P950 for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 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 Nikon D40X 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 Coolpix P950 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-12800.
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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|3.||Leica V-LUX 2||1/2.3||14.0||4320||3240||1080/60i||..||..||..||..|
|16.||Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|17.||Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The P950 indeed provides for movie recording, while the D40X does not. The highest resolution format that the P950 can use is 4K/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the P950 has an electronic viewfinder (2359k dots), while the D40X has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The following table reports on some other key feature differences and similarities of the Nikon D40X, the Nikon P950, and comparable cameras.
|3.||Leica V-LUX 2||202||n||3.0||460||swivel||n||1/2000s||11.0||Y||Y|
The Nikon P950 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.
The D40X writes its imaging data to SDHC cards, while the P950 uses SDXC 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 Nikon D40X and Nikon Coolpix P950 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|3.||Leica V-LUX 2||Y||stereo||mono||-||-||mini||2.0||-||-||-|
It is notable that the P950 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D40X does not provide wifi capability.
The P950 is a recent model that features in the current product line-up of Nikon. In contrast, the D40X has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the D40X was succeeded by the Nikon D60 . Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon website.
So what conclusions can be drawn? Is there a clear favorite between the Nikon D40X and the Nikon P950? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Nikon D40X:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- More compact: Is smaller (124x94mm vs 140x110mm) and thus needs less room in the bag.
- Longer lasting: Can take more shots (520 versus 290) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in March 2007).
Advantages of the Nikon Coolpix P950:
- More detail: Has more megapixels (15.9 vs 10MP), which boosts linear resolution by 24%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger screen: Has a bigger rear LCD (3.2" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (7 vs 3 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the D40X requires a separate lens.
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More modern: Reflects 12 years and 10 months of technical progress since the D40X launch.
If the count of individual advantages (bullet points above) is taken as a guide, the P950 is the clear winner of the contest (16 : 10 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 Nikon D40X and the Nikon P950 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom 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 incomplete and does no justice, for example, to the way the D40X or the P950 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.||Nikon D40X||..||79/100||+ +||4/5||4/5||Mar 2007||729|
|2.||Nikon P950||..||..||..||4/5||4/5||Jan 2020||799|
|3.||Leica V-LUX 2||..||..||..||..||..||Sep 2010||849|
|4.||Nikon B600||..||+||..||3.5/5||3/5||Jan 2019||349|
|5.||Nikon A1000||..||+ +||..||3.5/5||3/5||Jan 2019||429|
|6.||Nikon P1000||..||+||73/100||3.5/5||3.5/5||Jul 2018||999|
|7.||Nikon P900||..||..||77/100||4/5||4/5||Mar 2015||599|
|8.||Nikon D3100||5/5||+ +||72/100||4.5/5||4.5/5||Aug 2010||599|
|9.||Nikon D3000||..||+||72/100||4/5||4.5/5||Jul 2009||599|
|10.||Nikon D5000||..||+ +||75/100||4/5||4.5/5||Apr 2009||749|
|11.||Nikon D60||..||80/100||+ +||4/5||4.5/5||Jan 2008||629|
|12.||Nikon D90||..||+ +||+ +||4/5||4.5/5||Aug 2008||1,299|
|13.||Nikon D40||..||81/100||+ +||o||4.5/5||Nov 2006||499|
|14.||Nikon D80||..||+||+ +||o||4.5/5||Aug 2006||999|
|15.||Nikon D50||..||78/100||+ +||4/5||4.5/5||Apr 2005||749|
|16.||Olympus E-420||..||85/100||+ +||4/5||4.5/5||Mar 2008||599|
|17.||Panasonic L10||..||85/100||+||3.5/5||4/5||Aug 2007||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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: Nikon D40X vs Nikon P950
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||Nikon D40X||Nikon P950|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Nikon F mount lenses||24-2000mm f/2.8-6.5|
|Launch Date||March 2007||January 2020|
|Launch Price||USD 729||USD 799|
|Sensor Specs||Nikon D40X||Nikon P950|
|Sensor Format||APS-C Sensor||1/2.3" Sensor|
|Sensor Size||23.6 x 15.8 mm||6.17 x 4.55 mm|
|Sensor Area||372.88 mm2||28.0735 mm2|
|Sensor Diagonal||28.4 mm||7.7 mm|
|Sensor Resolution||10 Megapixels||15.9 Megapixels|
|Image Resolution||3872 x 2592 pixels||4608 x 3456 pixels|
|Pixel Pitch||6.11 μm||1.33 μm|
|Pixel Density||2.69 MP/cm2||56.73 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100 - 1,600 ISO||100 - 6,400 ISO|
|ISO Boost||100 - 3,200 ISO||100 - 12,800 ISO|
|DXO Sensor Quality (score)||63||..|
|DXO Color Depth (bits)||22.4||..|
|DXO Dynamic Range (EV)||11.4||..|
|DXO Low Light (ISO)||516||..|
|Screen Specs||Nikon D40X||Nikon P950|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||90%|
|Viewfinder Resolution||2359k dots|
|LCD Framing||Live View|
|Rear LCD Size||2.5inch||3.2inch|
|LCD Resolution||230k dots||921k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Nikon D40X||Nikon P950|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||3 shutter flaps/s||7 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Nikon D40X||Nikon P950|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Nikon D40X||Nikon P950|
|Battery Life (CIPA)||520 shots per charge||290 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
140 x 110 x 150 mm
(5.5 x 4.3 x 5.9 in)
|Camera Weight||522 g (18.4 oz)||1005 g (35.5 oz)|
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