Nikon D40 vs Df
The Nikon D40 and the Nikon Df are two digital cameras that were officially introduced, respectively, in November 2006 and November 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D40) and a full frame (Df) sensor. The D40 has a resolution of 6 megapixels, whereas the Df provides 16.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Nikon D40||Nikon Df|
|Digital single lens reflex||Digital single lens reflex|
|Nikon F mount lenses||Nikon F mount lenses|
|6 MP, APS-C Sensor||16.2 MP, Full Frame Sensor|
|no Video||no Video|
|ISO 200-1600 (200-3200)||ISO 100-12800 (50-204800)|
|Optical viewfinder||Optical viewfinder|
|2.5" LCD, 230k dots||3.2" LCD, 921k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|2.5 shutter flaps per second||5.5 shutter flaps per second|
|Not weather sealed||Weathersealed body|
|470 shots per battery charge||1400 shots per battery charge|
|124 x 94 x 64 mm, 522 g||144 x 110 x 67 mm, 760 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D40 and the Nikon Df? 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 D40 and the Nikon Df. 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 dimensions are rounded to the nearest millimeter.
The Df can be obtained in two different colors (black, silver), 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 Df is notably larger (36 percent) than the Nikon D40. Moreover, the Df is substantially heavier (46 percent) than the D40. It is noteworthy in this context that the Df is splash and dust-proof, while the D40 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 (as in the Df) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (D40). 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 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.
|Nikon D40»||4.9 in||3.7 in||2.5 in||18.4 oz||470||n||Nov 2006||499||Nikon D40|
|Nikon Df«||5.7 in||4.3 in||2.6 in||26.8 oz||1400||Y||Nov 2013||2,749||Nikon Df|
|Nikon D850« »||5.7 in||4.9 in||3.1 in||35.5 oz||1840||Y||Jul 2017||3,299||Nikon D850|
|Nikon D3400« »||4.9 in||3.9 in||3.0 in||15.7 oz||1200||n||Aug 2016||499||Nikon D3400|
|Nikon D750« »||5.6 in||4.4 in||3.1 in||26.5 oz||1230||Y||Sep 2014||2,299||Nikon D750|
|Nikon D810« »||5.7 in||4.8 in||3.2 in||34.6 oz||1200||Y||Jun 2014||3,299||Nikon D810|
|Nikon D3300« »||4.9 in||3.9 in||3.0 in||15.2 oz||700||n||Jan 2014||499||Nikon D3300|
|Nikon D610« »||5.6 in||4.4 in||3.2 in||30.0 oz||900||Y||Oct 2013||1,999||Nikon D610|
|Nikon D4« »||6.3 in||6.2 in||3.6 in||47.3 oz||2600||Y||Jan 2012||5,999||Nikon D4|
|Nikon D3100« »||4.9 in||3.8 in||3.0 in||17.8 oz||550||n||Aug 2010||599||Nikon D3100|
|Nikon D3000« »||5.0 in||3.8 in||2.5 in||18.9 oz||500||n||Jul 2009||599||Nikon D3000|
|Nikon D60« »||5.0 in||3.7 in||2.5 in||18.4 oz||500||n||Jan 2008||629||Nikon D60|
|Nikon D40X« »||4.9 in||3.7 in||2.5 in||18.4 oz||520||n||Mar 2007||729||Nikon D40X|
|Nikon D80« »||5.2 in||4.1 in||3.0 in||23.6 oz||600||n||Aug 2006||999||Nikon D80|
|Nikon D50« »||5.2 in||4.0 in||3.0 in||21.9 oz||400||n||Apr 2005||749||Nikon D50|
|Nikon D70s« »||5.5 in||4.4 in||3.1 in||24.0 oz||500||n||Apr 2005||899||Nikon D70s|
|Nikon D70« »||5.5 in||4.4 in||3.1 in||24.0 oz||400||n||Jan 2004||999||Nikon D70|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
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 D40 was launched at a markedly lower price (by 82 percent) than the Df, which puts it into a different 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.
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Nikon D40 features an APS-C sensor and the Nikon Df a full frame sensor. The sensor area in the Df is 132 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 16.2MP, the Df offers a higher resolution than the D40 (6MP), but the Df has smaller individual pixels (pixel pitch of 7.29μm versus 7.85μm for the D40). Yet, the Df is a much more recent model (by 6 years and 11 months) than the D40, 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 Df implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Df for good quality output (200 dots per inch) amounts to 24.6 x 16.4 inch or 62.6 x 41.7 cm, for very good quality (250 dpi) 19.7 x 13.1 inch or 50.1 x 33.3 cm, and for excellent quality (300 dpi) 16.4 x 10.9 inch or 41.7 x 27.8 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 D40 has a native sensitivity range from ISO 200 to ISO 1600, which can be extended to ISO 200-3200. The corresponding ISO settings for the Nikon Df are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 50-204800.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 consideration, the Df offers substantially better image quality than the D40 (overall score 33 points higher). The advantage is based on 3.6 bits higher color depth, 2.1 EV in additional dynamic range, and 2.5 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 D40||APS-C||6.0||3008||2000||none||21.0||11.0||561||56||Nikon D40|
|Nikon Df||Full Frame||16.2||4928||3280||none||24.6||13.1||3279||89||Nikon Df|
|Nikon D850||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100||Nikon D850|
|Nikon D3400||APS-C||24.0||6000||4000||1080/60p||24.8||13.9||1192||86||Nikon D3400|
|Nikon D750||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93||Nikon D750|
|Nikon D810||Full Frame||36.2||7360||4912||1080/60p||25.7||14.8||2853||97||Nikon D810|
|Nikon D3300||APS-C||24.0||6000||4000||1080/60p||24.3||12.8||1385||82||Nikon D3300|
|Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94||Nikon D610|
|Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89||Nikon D4|
|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 D60||APS-C||10.0||3872||2592||none||22.5||11.4||562||65||Nikon D60|
|Nikon D40X||APS-C||10.0||3872||2592||none||22.4||11.4||516||63||Nikon D40X|
|Nikon D80||APS-C||10.0||3872||2592||none||22.1||11.2||524||61||Nikon D80|
|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|
|Nikon D70||APS-C||6.0||3008||2000||none||20.4||10.3||529||50||Nikon D70|
Apart from body and sensor, cameras can and do differ across a variety of features. The D40 and the Df 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 Df offers a wider field of view (100%) than the one in the D40 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Df has a higher magnification (0.70x 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 D40 and Nikon Df along with similar information for a selection of comparators.
|Nikon D40||optical||n||2.5||230||fixed||n||1/4000s||2.5||Y||n||Nikon D40|
|Nikon Df||optical||Y||3.2||921||fixed||n||1/4000s||5.5||n||n||Nikon Df|
|Nikon D850||optical||Y||3.2||2359||tilting||Y||1/8000s||9.0||n||n||Nikon D850|
|Nikon D3400||optical||n||3.0||921||fixed||n||1/4000s||5.0||Y||n||Nikon D3400|
|Nikon D750||optical||Y||3.2||1229||tilting||n||1/4000s||6.0||Y||n||Nikon D750|
|Nikon D810||optical||Y||3.2||1229||fixed||n||1/8000s||5.0||Y||n||Nikon D810|
|Nikon D3300||optical||n||3.0||921||fixed||n||1/4000s||5.0||Y||n||Nikon D3300|
|Nikon D610||optical||Y||3.2||921||fixed||n||1/4000s||6.0||Y||n||Nikon D610|
|Nikon D4||optical||Y||3.2||921||fixed||n||1/8000s||11.0||n||n||Nikon D4|
|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 D60||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D60|
|Nikon D40X||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D40X|
|Nikon D80||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D80|
|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|
|Nikon D70||optical||n||1.8||130||fixed||n||1/8000s||3.0||Y||n||Nikon D70|
One difference between the cameras concerns the presence of an on-board flash. The D40 has one, while the Df does not. While the built-in flash of the D40 is not very powerful, it can at times be useful as a fill-in light.
The Nikon Df 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 D40 writes its imaging data to SDHC cards, while the Df uses SDXC cards. The Df 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 D40 and Nikon Df and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Nikon D40||Y||none||none||-||-||none||2.0||-||-||-||Nikon D40|
|Nikon Df||Y||none||none||-||-||mini||2.0||-||-||-||Nikon Df|
|Nikon D850||Y||stereo||mono||Y||Y||mini||3.0||Y||Y||Y||Nikon D850|
|Nikon D3400||Y||mono||mono||-||-||mini||2.0||-||-||Y||Nikon D3400|
|Nikon D750||Y||stereo||mono||Y||Y||mini||2.0||Y||-||-||Nikon D750|
|Nikon D810||Y||stereo||mono||Y||Y||mini||3.0||Y||-||-||Nikon D810|
|Nikon D3300||Y||mono||mono||Y||-||mini||2.0||-||-||-||Nikon D3300|
|Nikon D610||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D610|
|Nikon D4||Y||mono||mono||Y||Y||micro||2.0||-||-||-||Nikon D4|
|Nikon D3100||Y||mono||mono||-||-||mini||2.0||-||-||-||Nikon D3100|
|Nikon D3000||Y||none||none||-||-||none||2.0||-||-||-||Nikon D3000|
|Nikon D60||Y||none||none||-||-||none||2.0||-||-||-||Nikon D60|
|Nikon D40X||Y||none||none||-||-||none||2.0||-||-||-||Nikon D40X|
|Nikon D80||Y||none||none||-||-||none||2.0||-||-||-||Nikon D80|
|Nikon D50||Y||none||none||-||-||none||2.0||-||-||-||Nikon D50|
|Nikon D70s||Y||none||none||-||-||none||2.0||-||-||-||Nikon D70s|
|Nikon D70||Y||none||none||-||-||none||1.0||-||-||-||Nikon D70|
Studio photographers will appreciate that the Nikon Df (unlike the D40) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The Df is a recent model that features in the current product line-up of Nikon. In contrast, the D40 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D40 was succeeded by the Nikon D40X. 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 D40 better than the Nikon Df or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Nikon D40:
- More compact: Is smaller (124x94mm vs 144x110mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 238g or 31 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 (82 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in November 2006).
Advantages of the Nikon Df:
- More detail: Has more megapixels (16.2 vs 6MP), which boosts linear resolution by 64%.
- Better image quality: Scores substantially higher (33 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.6 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.1 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.5 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 0.53x).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- 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).
- Faster burst: Shoots at higher frequency (5.5 vs 2.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (1400 versus 470) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More modern: Reflects 6 years and 11 months of technical progress since the D40 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the Df is the clear winner of the contest (17 : 5 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. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 D40 and the Nikon Df 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D40 or the Df. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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.
Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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: Nikon D40 vs Nikon Df
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 D40||Nikon Df|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Nikon F mount lenses||Nikon F mount lenses|
|Launch Date||November 2006||November 2013|
|Launch Price||USD 499||USD 2749|
|Sensor Specs||Nikon D40||Nikon Df|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.7 x 15.6 mm||36.0 x 23.9 mm|
|Sensor Area||369.72 mm2||860.4 mm2|
|Sensor Diagonal||28.4 mm||43.2 mm|
|Sensor Resolution||6 Megapixels||16.2 Megapixels|
|Image Resolution||3008 x 2000 pixels||4928 x 3280 pixels|
|Pixel Pitch||7.85 μm||7.29 μm|
|Pixel Density||1.63 MP/cm2||1.88 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||no Video|
|ISO Setting||200-1600 ISO||100-12800 ISO|
|ISO Boost||200-3200 ISO||50-204800 ISO|
|DXO Sensor Quality (score)||56||89|
|DXO Color Depth (bits)||21.0||24.6|
|DXO Dynamic Range (EV)||11.0||13.1|
|DXO Low Light (ISO)||561||3279|
|Screen Specs||Nikon D40||Nikon Df|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||2.5 inch||3.2 inch|
|LCD Resolution||230k dots||921k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Nikon D40||Nikon Df|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||2.5 shutter flaps/s||5.5 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations||150 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Nikon D40||Nikon Df|
|Studio Flash||no PC Sync||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||Nikon D40||Nikon Df|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||470 shots per charge||1400 shots per charge|
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
144 x 110 x 67 mm
(5.7 x 4.3 x 2.6 in)
|Camera Weight||522 g (18.4 oz)||760 g (26.8 oz)|
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