Canon 1D Mark IV vs Nikon D40
The Canon EOS-1D Mark IV and the Nikon D40 are two digital cameras that were officially introduced, respectively, in October 2009 and November 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark IV) and an APS-C (D40) sensor. The Canon has a resolution of 16 megapixels, whereas the Nikon provides 6 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 1D Mark IV||Nikon D40|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Nikon F mount lenses|
|16 MP, APS-H Sensor||6 MP, APS-C Sensor|
|1080/30p Video||no Video|
|ISO 100-12800 (50-102400)||ISO 200-1600 (200-3200)|
|Optical viewfinder||Optical viewfinder|
|3.0" LCD, 920k dots||2.5" LCD, 230k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|10 shutter flaps per second||2.5 shutter flaps per second|
|Weathersealed body||Not weather sealed|
|1500 shots per battery charge||470 shots per battery charge|
|156 x 157 x 80 mm, 1230 g||124 x 94 x 64 mm, 522 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark IV 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 side-by-side display below illustrates the physical size and weight of the Canon 1D Mark IV and the Nikon D40. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures 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 D40 is considerably smaller (52 percent) than the Canon 1D Mark IV. Moreover, the D40 is substantially lighter (58 percent) than the 1D Mark IV. It is worth mentioning in this context that the 1D Mark IV is splash and dust resistant, 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 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 (1D Mark IV) and the Nikon Lens Catalog (D40).
Concerning battery life, the 1D Mark IV gets 1500 shots out of its LP-E4 battery, while the D40 can take 470 images on a single charge of its EN-EL9 power pack. As can be seen in the images above, the 1D Mark IV 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 D40, there are third party battery grips available as optional accessories (see here on eBay).
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|Canon 1D Mark IV»||156 mm||157 mm||80 mm||1230 g||1500||Y||Oct 2009||4,999||-||Canon 1D Mark IV|
|Nikon D40«||124 mm||94 mm||64 mm||522 g||470||n||Nov 2006||499||-||Nikon D40|
|Canon 1D X Mark II« »||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999||Canon 1D X Mark II|
|Canon 1D X« »||158 mm||168 mm||83 mm||1551 g||1120||Y||Oct 2011||6,799||-||Canon 1D X|
|Canon 60D« »||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699||-||Canon 7D|
|Canon 5D Mark II« »||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 50D« »||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299||-||Canon 50D|
|Canon 1D Mark III« »||156 mm||157 mm||80 mm||1155 g||2200||Y||Feb 2007||4,499||-||Canon 1D Mark III|
|Canon 1Ds Mark II« »||156 mm||158 mm||80 mm||1215 g||1200||Y||Sep 2004||7,999||-||Canon 1Ds Mark II|
|Nikon D4« »||160 mm||157 mm||91 mm||1340 g||2600||Y||Jan 2012||5,999||-||Nikon D4|
|Nikon D3100« »||124 mm||96 mm||75 mm||505 g||550||n||Aug 2010||599||-||Nikon D3100|
|Nikon D3S« »||160 mm||157 mm||88 mm||1240 g||4200||Y||Oct 2009||5,199||-||Nikon D3S|
|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 D40 was launched at a markedly lower price (by 90 percent) than the 1D Mark IV, 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 sensor inside a digital camera is one of the key determinants 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 1D Mark IV features an APS-H sensor and the Nikon D40 an APS-C sensor. The sensor area in the D40 is 29 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 16MP, the 1D Mark IV offers a higher resolution than the D40 (6MP), but the 1D Mark IV has smaller individual pixels (pixel pitch of 5.70μm versus 7.85μm for the D40). However, the 1D Mark IV is a much more recent model (by 2 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 pixels.
The resolution advantage of the Canon 1D Mark IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1D Mark IV for good quality output (200 dots per inch) amounts to 24.5 x 16.3 inch or 62.2 x 41.5 cm, for very good quality (250 dpi) 19.6 x 13.1 inch or 49.7 x 33.2 cm, and for excellent quality (300 dpi) 16.3 x 10.9 inch or 41.5 x 27.6 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 Canon EOS-1D Mark IV has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. 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 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 review, the 1D Mark IV provides substantially higher image quality than the D40, with an overall score that is 18 points higher. This advantage is based on 1.8 bits higher color depth, 1 EV in additional dynamic range, and 1.2 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.
|Canon 1D Mark IV»||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74||Canon 1D Mark IV|
|Nikon D40«||APS-C||6.0||3008||2000||-||21.0||11.0||561||56||Nikon D40|
|Canon 1D X Mark II« »||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88||Canon 1D X Mark II|
|Canon 1D X« »||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82||Canon 1D X|
|Canon 60D« »||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66||Canon 60D|
|Canon 7D« »||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Canon 5D Mark II« »||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79||Canon 5D Mark II|
|Canon 50D« »||APS-C||15.1||4752||3168||-||21.8||11.4||696||63||Canon 50D|
|Canon 1D Mark III« »||APS-H||10.1||3888||2592||-||22.7||11.7||1078||71||Canon 1D Mark III|
|Canon 1Ds Mark II« »||Full Frame||16.6||4992||3328||-||23.3||11.3||1480||74||Canon 1Ds Mark II|
|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 D3S« »||Full Frame||12.1||4256||2832||720/24p||23.5||12.0||3253||82||Nikon D3S|
|Nikon D3000« »||APS-C||10.0||3872||2592||-||22.3||11.1||563||62||Nikon D3000|
|Nikon D40X« »||APS-C||10.0||3872||2592||-||22.4||11.4||516||63||Nikon D40X|
|Nikon D50« »||APS-C||6.0||3008||2000||-||20.9||10.8||560||55||Nikon D50|
|Nikon D70s« »||APS-C||6.0||3008||2000||-||20.4||10.3||529||50||Nikon D70s|
Many modern cameras are not only capable of taking still images, but can also record movies. The 1D Mark IV indeed provides movie recording capabilities, while the D40 does not. The highest resolution format that the 1D Mark IV can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The 1D Mark IV 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 viewfinder in the 1D Mark IV 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 1D Mark IV has a higher magnification (0.58x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 1D Mark IV and Nikon D40 in connection with corresponding information for a sample of similar cameras.
|Canon 1D Mark IV»||optical||Y||3.0||920||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark IV|
|Nikon D40«||optical||n||2.5||230||fixed||n||1/4000s||2.5||Y||n||Nikon D40|
|Canon 1D X Mark II« »||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|Canon 1D X« »||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D X|
|Canon 60D« »||optical||Y||3.0||1040||swivel||n||1/8000s||5.3||Y||n||Canon 60D|
|Canon 7D« »||optical||Y||3.0||920||fixed||n||1/8000s||8.0||Y||n||Canon 7D|
|Canon 5D Mark II« »||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n||Canon 5D Mark II|
|Canon 50D« »||optical||Y||3.0||920||fixed||n||1/8000s||6.3||Y||n||Canon 50D|
|Canon 1D Mark III« »||optical||Y||3.0||230||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark III|
|Canon 1Ds Mark II« »||optical||Y||2.0||230||fixed||n||1/8000s||4.0||n||n||Canon 1Ds Mark II|
|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 D3S« »||optical||Y||3.0||921||fixed||n||1/8000s||11.0||n||n||Nikon D3S|
|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|
One feature that is present on the 1D Mark IV, but is missing on the D40 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The 1D Mark IV writes its imaging data to Compact Flash or SDHC cards, while the D40 uses SDHC cards. The 1D Mark IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the D40 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-1D Mark IV and Nikon D40 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1D Mark IV»||Y||stereo||-||Y||-||mini||2.0||-||-||-||Canon 1D Mark IV|
|Nikon D40«||Y||-||-||-||-||-||2.0||-||-||-||Nikon D40|
|Canon 1D X Mark II« »||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Canon 1D X« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 1D X|
|Canon 60D« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 60D|
|Canon 7D« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 7D|
|Canon 5D Mark II« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 50D« »||Y||-||-||-||-||mini||2.0||-||-||-||Canon 50D|
|Canon 1D Mark III« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1D Mark III|
|Canon 1Ds Mark II« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1Ds Mark II|
|Nikon D4« »||Y||mono||mono||-||-||micro||2.0||-||-||-||Nikon D4|
|Nikon D3100« »||Y||mono||mono||-||-||mini||2.0||-||-||-||Nikon D3100|
|Nikon D3S« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Nikon D3S|
|Nikon D3000« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D3000|
|Nikon D40X« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D40X|
|Nikon D50« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D50|
|Nikon D70s« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D70s|
Studio photographers will appreciate that the Canon 1D Mark IV (unlike the D40) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 1D Mark IV and the D40 have been discontinued, but can regularly be found used on eBay. The D40 was replaced by the Nikon D40X, while the 1D Mark IV 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 the Canon 1D Mark IV better than the Nikon D40 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Canon EOS-1D Mark IV:
- More detail: Offers more megapixels (16 vs 6MP) with a 63% higher linear resolution.
- Better image quality: Scores substantially higher (18 points) in the DXO overall assessment.
- Richer colors: Generates images with noticeably better colors (1.8 bits more color depth).
- More dynamic range: Captures a larger spectrum of light and dark details (1 EV of extra DR).
- Better low-light sensitivity: Requires less light for good images (1.2 stops ISO advantage).
- Broader imaging potential: Can record not only still images but also 1080/30p movies.
- 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 (0.58x vs 0.53x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- 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 (920k vs 230k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 2.5 flaps/sec) to capture the decisive moment.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1500 versus 470) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 2 years and 11 months of technical progress since the D40 launch.
Advantages of the Nikon D40:
- More compact: Is smaller (124x94mm vs 156x157mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 708g or 58 percent) and is thus easier to take along.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (90 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in November 2006).
If the count of individual advantages (bullet points above) is taken as a guide, the 1D Mark IV is the clear winner of the match-up (19 : 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 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 Canon 1D Mark IV 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 says little about, for example, the shooting experience and imaging performance of the 1D Mark IV and the D40 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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.
|Canon 1D Mark IV»||-||89/100||-||5/5||-||Oct 2009||4,999||-||Canon 1D Mark IV|
|Nikon D40«||81/100||+ +||o||5/5||4.5/5||Nov 2006||499||-||Nikon D40|
|Canon 1D X Mark II« »||-||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999||Canon 1D X Mark II|
|Canon 1D X« »||-||-||4.5/5||4.5/5||4.5/5||Oct 2011||6,799||-||Canon 1D X|
|Canon 60D« »||+||79/100||4/5||5/5||4.5/5||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||+ +||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699||-||Canon 7D|
|Canon 5D Mark II« »||91/100||79/100||4/5||5/5||-||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 50D« »||+ +||+ +||4.5/5||5/5||4.5/5||Aug 2008||1,299||-||Canon 50D|
|Canon 1D Mark III« »||-||-||-||o||-||Feb 2007||4,499||-||Canon 1D Mark III|
|Canon 1Ds Mark II« »||-||+ +||-||-||-||Sep 2004||7,999||-||Canon 1Ds Mark II|
|Nikon D4« »||-||-||4.5/5||-||4.5/5||Jan 2012||5,999||-||Nikon D4|
|Nikon D3100« »||+ +||72/100||4.5/5||5/5||4.5/5||Aug 2010||599||-||Nikon D3100|
|Nikon D3S« »||-||89/100||4.5/5||5/5||5/5||Oct 2009||5,199||-||Nikon D3S|
|Nikon D3000« »||+||72/100||4/5||3.5/5||4.5/5||Jul 2009||599||-||Nikon D3000|
|Nikon D40X« »||79/100||+ +||4/5||o||4/5||Mar 2007||729||-||Nikon D40X|
|Nikon D50« »||78/100||+ +||4/5||o||4.5/5||Apr 2005||749||-||Nikon D50|
|Nikon D70s« »||-||-||-||o||5/5||Apr 2005||899||-||Nikon D70s|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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Specifications: Canon 1D Mark IV 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||Canon 1D Mark IV||Nikon D40|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Nikon F mount lenses|
|Launch Date||October 2009||November 2006|
|Launch Price||USD 4999||USD 499|
|Sensor Specs||Canon 1D Mark IV||Nikon D40|
|Sensor Format||APS-H Sensor||APS-C Sensor|
|Sensor Size||27.9 x 18.6 mm||23.7 x 15.6 mm|
|Sensor Area||518.94 mm2||369.72 mm2|
|Sensor Diagonal||33.5 mm||28.4 mm|
|Sensor Resolution||16 Megapixels||6 Megapixels|
|Image Resolution||4896 x 3264 pixels||3008 x 2000 pixels|
|Pixel Pitch||5.70 μm||7.85 μm|
|Pixel Density||3.08 MP/cm2||1.63 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100-12800 ISO||200-1600 ISO|
|ISO Boost||50-102400 ISO||200-3200 ISO|
|DXO Sensor Quality (score)||74||56|
|DXO Color Depth (bits)||22.8||21.0|
|DXO Dynamic Range (EV)||12.0||11.0|
|DXO Low Light (ISO)||1320||561|
|Screen Specs||Canon 1D Mark IV||Nikon D40|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||3.0 inch||2.5 inch|
|LCD Resolution||920k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 1D Mark IV||Nikon D40|
|Autofocus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||10 shutter flaps/s||2.5 shutter flaps/s|
|Shutter Life Expectancy||300 000 actuations||50 000 actuations|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF or SDHC cards||SDHC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon 1D Mark IV||Nikon D40|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 1D Mark IV||Nikon D40|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Life (CIPA)||1500 shots per charge||470 shots per charge|
156 x 157 x 80 mm
(6.1 x 6.2 x 3.1 in)
124 x 94 x 64 mm
(4.9 x 3.7 x 2.5 in)
|Camera Weight||1230 g (43.4 oz)||522 g (18.4 oz)|
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