Nikon D3400 vs D40
The Nikon D3400 and the Nikon D40 are two digital cameras that were announced, respectively, in August 2016 and November 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D3400 has a resolution of 24 megapixels, whereas the D40 provides 6 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Nikon D3400||Nikon D40|
|Digital single lens reflex||Digital single lens reflex|
|Nikon F mount lenses||Nikon F mount lenses|
|24 MP, APS-C Sensor||6 MP, APS-C Sensor|
|1080/60p Video||no Video|
|ISO 100-25600||ISO 200-1600 (200-3200)|
|Optical viewfinder||Optical viewfinder|
|3.0" LCD, 921k dots||2.5" LCD, 230k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|5 shutter flaps per second||2.5 shutter flaps per second|
|1200 shots per battery charge||470 shots per battery charge|
|124 x 98 x 76 mm, 445 g||124 x 94 x 64 mm, 522 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D3400 and the Nikon D40? 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 Nikon D3400 and the Nikon D40 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 dimensions are rounded to the nearest millimeter.
The D3400 can be obtained in two different colors (black, red), while the D40 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 D40 is somewhat smaller (4 percent) than the Nikon D3400. However, the D40 is markedly heavier (17 percent) than the D3400. In this context, it is worth noting that neither the D3400 nor the D40 are weather-sealed.
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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Nikon Lens Catalog.
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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Nikon D3400»||124 mm||98 mm||76 mm||445 g||1200||n||Aug 2016||499||Nikon D3400|
|Nikon D40«||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499||Nikon D40|
|Canon 77D« »||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899||Canon 77D|
|Canon 200D« »||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549||Canon 200D|
|Canon M100« »||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499||Canon M100|
|Nikon D3500« »||124 mm||97 mm||70 mm||365 g||1550||n||Aug 2018||429||Nikon D3500|
|Nikon D7500« »||136 mm||104 mm||73 mm||720 g||950||Y||Apr 2017||1,299||Nikon D7500|
|Nikon D5600« »||124 mm||97 mm||70 mm||465 g||970||n||Nov 2016||699||Nikon D5600|
|Nikon D5500« »||124 mm||97 mm||70 mm||420 g||820||n||Jan 2015||899||Nikon D5500|
|Nikon D3300« »||124 mm||98 mm||76 mm||430 g||700||n||Jan 2014||499||Nikon D3300|
|Nikon D5300« »||125 mm||98 mm||76 mm||480 g||600||n||Oct 2013||799||Nikon D5300|
|Nikon D3200« »||125 mm||96 mm||77 mm||505 g||540||n||Apr 2012||599||Nikon D3200|
|Nikon D3100« »||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599||Nikon D3100|
|Nikon D3000« »||126 mm||97 mm||64 mm||536 g||500||n||Jul 2009||599||Nikon D3000|
|Nikon D40X« »||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729||Nikon D40X|
|Nikon D50« »||133 mm||102 mm||76 mm||620 g||400||n||Apr 2005||749||Nikon D50|
|Nikon D70s« »||140 mm||111 mm||78 mm||679 g||500||n||Apr 2005||899||Nikon D70s|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The two cameras under review were launched at the same price and fall into the same market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and 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 D40 is 1 percent bigger. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a slightly smaller sensor, the Nikon D3400 offers a higher resolution of 24 megapixels, compared with 6 MP of the Nikon D40. 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 3.91μm versus 7.85μm for the D40). However, it should be noted that the D3400 is much more recent (by 9 years and 9 months) than the D40, 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 D3400 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Nikon D3400 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D3400 for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Nikon D40 are 15 x 10 inch or 38.2 x 25.4 cm for good quality, 12 x 8 inch or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inch or 25.5 x 16.9 cm for excellent quality prints.
The Nikon D3400 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Nikon D40 are ISO 200 to ISO 1600, with the possibility to increase the ISO range to 200-3200.
Consistent information on actual sensor performance is available from DXO Mark for many 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 review, the D3400 provides substantially higher image quality than the D40, with an overall score that is 30 points higher. This advantage is based on 3.8 bits higher color depth, 2.9 EV in additional dynamic range, and 1.1 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Nikon D3400||APS-C||24.0||6000||4000||1080/60p||24.8||13.9||1192||86||Nikon D3400|
|Nikon D40||APS-C||6.0||3008||2000||none||21.0||11.0||561||56||Nikon D40|
|Canon 77D||APS-C||24.0||6000||4000||1080/60p||23.6||13.3||971||78||Canon 77D|
|Canon 200D||APS-C||24.0||6000||4000||1080/60p||23.6||13.4||1041||79||Canon 200D|
|Canon M100||APS-C||24.0||6000||4000||1080/60p||23.5||12.9||1272||78||Canon M100|
|Nikon D3500||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Nikon D3500|
|Nikon D7500||APS-C||20.7||5568||3712||4K/30p||24.3||14.0||1483||86||Nikon D7500|
|Nikon D5600||APS-C||24.0||6000||4000||1080/60p||24.1||14.0||1306||84||Nikon D5600|
|Nikon D5500||APS-C||24.0||6000||4000||1080/60p||24.1||14.0||1438||84||Nikon D5500|
|Nikon D3300||APS-C||24.0||6000||4000||1080/60p||24.3||12.8||1385||82||Nikon D3300|
|Nikon D5300||APS-C||24.0||6000||4000||1080/60p||24.0||13.9||1338||83||Nikon D5300|
|Nikon D3200||APS-C||24.1||6016||4000||1080/30p||24.1||13.2||1131||81||Nikon D3200|
|Nikon D3100||APS-C||14.2||4608||3072||1080/24p||22.5||11.3||919||67||Nikon D3100|
|Nikon D3000||APS-C||10.0||3872||2592||none||22.3||11.1||563||62||Nikon D3000|
|Nikon D40X||APS-C||10.0||3872||2592||none||22.4||11.4||516||63||Nikon D40X|
|Nikon D50||APS-C||6.0||3008||2000||none||20.9||10.8||560||55||Nikon D50|
|Nikon D70s||APS-C||6.0||3008||2000||none||20.4||10.3||529||50||Nikon D70s|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The D3400 indeed provides movie recording capabilities, while the D40 does not. The highest resolution format that the D3400 can use is 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. The D3400 and the D40 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the D3400 has a higher magnification than the one of the D40 (0.57x vs 0.53x), 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 Nikon D3400 and Nikon D40 along with similar information for a selection of comparators.
|Nikon D3400||optical||n||3.0||921||fixed||n||1/4000s||5.0||Y||n||Nikon D3400|
|Nikon D40||optical||n||2.5||230||fixed||n||1/4000s||2.5||Y||n||Nikon D40|
|Canon 77D||optical||Y||3.0||1040||swivel||Y||1/4000s||6.0||Y||n||Canon 77D|
|Canon 200D||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 200D|
|Canon M100||none||n||3.0||1040||tilting||Y||1/4000s||6.1||Y||n||Canon M100|
|Nikon D3500||optical||n||3.0||921||fixed||n||1/4000s||5.0||Y||n||Nikon D3500|
|Nikon D7500||optical||Y||3.2||922||tilting||Y||1/8000s||8.0||Y||n||Nikon D7500|
|Nikon D5600||optical||n||3.2||1037||swivel||Y||1/4000s||5.0||Y||n||Nikon D5600|
|Nikon D5500||optical||n||3.2||1037||swivel||Y||1/4000s||5.0||Y||n||Nikon D5500|
|Nikon D3300||optical||n||3.0||921||fixed||n||1/4000s||5.0||Y||n||Nikon D3300|
|Nikon D5300||optical||n||3.2||1037||swivel||n||1/4000s||5.0||Y||n||Nikon D5300|
|Nikon D3200||optical||n||3.0||921||fixed||n||1/4000s||4.0||Y||n||Nikon D3200|
|Nikon D3100||optical||n||3.0||230||fixed||n||1/4000s||3.0||Y||n||Nikon D3100|
|Nikon D3000||optical||n||3.0||230||fixed||n||1/4000s||3.0||Y||n||Nikon D3000|
|Nikon D40X||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D40X|
|Nikon D50||optical||n||2.0||130||fixed||n||1/4000s||2.5||Y||n||Nikon D50|
|Nikon D70s||optical||n||2.0||130||fixed||n||1/8000s||3.0||Y||n||Nikon D70s|
The D3400 writes its imaging data to SDXC cards, while the D40 uses SDHC cards. The D3400 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D40 cannot take advantage of Ultra High Speed SD 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 D3400 and Nikon D40 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Nikon D3400||Y||mono||mono||-||-||mini||2.0||-||-||Y||Nikon D3400|
|Nikon D40||Y||none||none||-||-||none||2.0||-||-||-||Nikon D40|
|Canon 77D||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon 77D|
|Canon 200D||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon 200D|
|Canon M100||-||stereo||mono||-||-||mini||2.0||Y||Y||Y||Canon M100|
|Nikon D3500||Y||mono||mono||-||-||mini||2.0||-||-||Y||Nikon D3500|
|Nikon D7500||Y||stereo||mono||Y||Y||mini||2.0||Y||-||Y||Nikon D7500|
|Nikon D5600||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Nikon D5600|
|Nikon D5500||Y||stereo||mono||Y||-||mini||2.0||Y||-||-||Nikon D5500|
|Nikon D3300||Y||mono||mono||Y||-||mini||2.0||-||-||-||Nikon D3300|
|Nikon D5300||Y||stereo||mono||Y||-||mini||2.0||Y||-||-||Nikon D5300|
|Nikon D3200||Y||mono||mono||Y||-||mini||2.0||-||-||-||Nikon D3200|
|Nikon D3100||Y||mono||mono||-||-||mini||2.0||-||-||-||Nikon D3100|
|Nikon D3000||Y||none||none||-||-||none||2.0||-||-||-||Nikon D3000|
|Nikon D40X||Y||none||none||-||-||none||2.0||-||-||-||Nikon D40X|
|Nikon D50||Y||none||none||-||-||none||2.0||-||-||-||Nikon D50|
|Nikon D70s||Y||none||none||-||-||none||2.0||-||-||-||Nikon D70s|
Both the D3400 and the D40 have been discontinued, but can regularly be found used on eBay. The D40 was replaced by the Nikon D40X, while the D3400 was followed by the Nikon D3500. 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 the Nikon D3400 better than the Nikon D40 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Nikon D3400:
- More detail: Offers more megapixels (24 vs 6MP) with a 100% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (30 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (3.8 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (2.9 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.1 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 1080/60p movies.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.57x vs 0.53x).
- 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 (921k vs 230k dots).
- Faster burst: Shoots at higher frequency (5 vs 2.5 flaps/sec) to capture the decisive moment.
- Less heavy: Is lighter (by 77g or 15 percent) and hence easier to carry around.
- Longer lasting: Can take more shots (1200 versus 470) on a single battery charge.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 9 years and 9 months of technical progress since the D40 launch.
Arguments in favor of the Nikon D40:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More heavily discounted: Has been around for much longer (launched in November 2006).
If the number of relative strengths (bullet points above) is taken as a guide, the D3400 is the clear winner of the match-up (16 : 2 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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 D3400 and the Nikon D40 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 D3400 or the D40 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 (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
The review scores listed above should be treated 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 D3400 vs Nikon D40
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 D3400||Nikon D40|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Nikon F mount lenses||Nikon F mount lenses|
|Launch Date||August 2016||November 2006|
|Launch Price||USD 499||USD 499|
|Sensor Specs||Nikon D3400||Nikon D40|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.5 x 15.6 mm||23.7 x 15.6 mm|
|Sensor Area||366.6 mm2||369.72 mm2|
|Sensor Diagonal||28.2 mm||28.4 mm|
|Sensor Resolution||24 Megapixels||6 Megapixels|
|Image Resolution||6000 x 4000 pixels||3008 x 2000 pixels|
|Pixel Pitch||3.91 μm||7.85 μm|
|Pixel Density||6.55 MP/cm2||1.63 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||no Video|
|ISO Setting||100-25600 ISO||200-1600 ISO|
|ISO Boost||no Enhancement||200-3200 ISO|
|DXO Sensor Quality (score)||86||56|
|DXO Color Depth (bits)||24.8||21.0|
|DXO Dynamic Range (EV)||13.9||11.0|
|DXO Low Light (ISO)||1192||561|
|Screen Specs||Nikon D3400||Nikon D40|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|LCD Framing||Live View|
|Rear LCD Size||3.0 inch||2.5 inch|
|LCD Resolution||921k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Nikon D3400||Nikon D40|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||5 shutter flaps/s||2.5 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||50 000 actuations|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDHC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Nikon D3400||Nikon D40|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Wifi Support||no Wifi||no Wifi|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Nikon D3400||Nikon D40|
|Battery Life (CIPA)||1200 shots per charge||470 shots per charge|
124 x 98 x 76 mm
(4.9 x 3.9 x 3.0 in)
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
|Camera Weight||445 g (15.7 oz)||522 g (18.4 oz)|
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