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Nikon D3 vs D40

The Nikon D3 and the Nikon D40 are two digital cameras that were revealed to the public, respectively, in August 2007 and November 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (D3) and an APS-C (D40) sensor. The D3 has a resolution of 12.1 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.

Headline Specifications
Nikon D3   Nikon D40
Nikon D3 Nikon D40
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Nikon F mount lenses
12.1 MP, Full Frame Sensor 6 MP, APS-C Sensor
no Video no Video
ISO 200-6400 (100-25600) ISO 200-1600 (200-3200)
Optical viewfinder Optical viewfinder
3.0" LCD, 922k dots 2.5" LCD, 230k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
11 shutter flaps per second 2.5 shutter flaps per second
Weathersealed bodyNot weather sealed
4300 shots per battery charge470 shots per battery charge
160 x 157 x 88 mm, 1300 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 D3 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.

Body comparison

The physical size and weight of the Nikon D3 and the Nikon D40 are illustrated in the side-by-side display below. 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.

Size Nikon D3 vs Nikon D40
Compare D3 versus D40 top
Comparison D3 or D40 rear

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 (54 percent) than the Nikon D3. Moreover, the D40 is substantially lighter (60 percent) than the D3. It is worth mentioning in this context that the D3 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 (as in the D3) 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.

Concerning battery life, the D3 gets 4300 shots out of its EN-EL4a 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 D3 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 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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D3» 6.3 in 6.2 in 3.5 in 45.9 oz 4300 Y Aug 2007 4,999- i Nikon D3
 
Nikon D40« 4.9 in 3.7 in 2.5 in 18.4 oz 470 n Nov 2006 499- i Nikon D40
 
Canon 1D Mark III« » 6.1 in 6.2 in 3.1 in 40.7 oz 2200 Y Feb 2007 4,499- i Canon 1D Mark III
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499 i i Nikon D5
 
Nikon D3400« » 4.9 in 3.9 in 3.0 in 15.7 oz 1200 n Aug 2016 499- i Nikon D3400
 
Nikon D4S« » 6.3 in 6.2 in 3.6 in 47.6 oz 3020 Y Feb 2014 6,499- i Nikon D4S
 
Nikon D3300« » 4.9 in 3.9 in 3.0 in 15.2 oz 700 n Jan 2014 499- i Nikon D3300
 
Nikon D4« » 6.3 in 6.2 in 3.6 in 47.3 oz 2600 Y Jan 2012 5,999- i Nikon D4
 
Nikon D3100« » 4.9 in 3.8 in 3.0 in 17.8 oz 550 n Aug 2010 599- i Nikon D3100
 
Nikon D3S« » 6.3 in 6.2 in 3.5 in 43.7 oz 4200 Y Oct 2009 5,199- i Nikon D3S
 
Nikon D3X« » 6.3 in 6.2 in 3.5 in 44.4 oz 4400 Y Dec 2008 7,999- i Nikon D3X
 
Nikon D700« » 5.8 in 4.8 in 3.0 in 37.9 oz 1000 Y Jul 2008 2,999- i Nikon D700
 
Nikon D40X« » 4.9 in 3.7 in 2.5 in 18.4 oz 520 n Mar 2007 729- i Nikon D40X
 
Nikon D300« » 5.8 in 4.5 in 2.9 in 32.6 oz 1000 Y Aug 2007 1,799- i Nikon D300
 
Nikon D2Xs« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Jun 2006 4,699- i Nikon D2Xs
 
Nikon D50« » 5.2 in 4.0 in 3.0 in 21.9 oz 400 n Apr 2005 749- i Nikon D50
 
Nikon D2X« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Sep 2004 4,999- i Nikon D2X
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 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 D40 was launched at a markedly lower price (by 90 percent) than the D3, 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.

 

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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.

Of the two cameras under consideration, the Nikon D3 features a full frame sensor and the Nikon D40 an APS-C sensor. The sensor area in the D40 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D3 and Nikon D40 sensor measures

With 12.1MP, the D3 offers a higher resolution than the D40 (6MP), but the D3 nevertheless has larger individual pixels (pixel pitch of 8.43μm versus 7.85μm for the D40) due to its larger sensor. Moreover, the D3 is a somewhat more recent model (by 9 months) than the D40, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Nikon D3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D3 for good quality output (200 dots per inch) amounts to 21.3 x 14.2 inch or 54.1 x 36 cm, for very good quality (250 dpi) 17 x 11.3 inch or 43.2 x 28.8 cm, and for excellent quality (300 dpi) 14.2 x 9.4 inch or 36 x 24 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 D3 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. 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.

D3 versus D40 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 review, the D3 provides substantially higher image quality than the D40, with an overall score that is 25 points higher. This advantage is based on 2.5 bits higher color depth, 1.2 EV in additional dynamic range, and 2 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Nikon D3» Full Frame 12.1 4256 2832-23.512.2229081Nikon D3
 
Nikon D40« APS-C 6.0 3008 2000-21.011.056156Nikon D40
 
Canon 1D Mark III« » APS-H 10.1 3888 2592-22.711.7107871Canon 1D Mark III
 
Nikon D5« » Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
 
Nikon D3400« » APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
 
Nikon D4S« » Full Frame 16.2 4928 32801080/60p24.413.3307489Nikon D4S
 
Nikon D3300« » APS-C 24.0 6000 40001080/60p24.312.8138582Nikon D3300
 
Nikon D4« » Full Frame 16.2 4928 32801080/30p24.713.1296589Nikon D4
 
Nikon D3100« » APS-C 14.2 4608 30721080/24p22.511.391967Nikon D3100
 
Nikon D3S« » Full Frame 12.1 4256 2832720/24p23.512.0325382Nikon D3S
 
Nikon D3X« » Full Frame 24.4 6048 4032-24.713.7199288Nikon D3X
 
Nikon D700« » Full Frame 12.1 4256 2832-23.512.2230380Nikon D700
 
Nikon D40X« » APS-C 10.0 3872 2592-22.411.451663Nikon D40X
 
Nikon D300« » APS-C 12.2 4288 2848-22.112.067967Nikon D300
 
Nikon D2Xs« » APS-C 12.2 4288 2848-22.210.948959Nikon D2Xs
 
Nikon D50« » APS-C 6.0 3008 2000-20.910.856055Nikon D50
 
Nikon D2X« » APS-C 12.2 4288 2848-22.110.947659Nikon D2X
The D3 offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The D40 lacks this capability. Both cameras are still-image focused and cannot record videos.
 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The D3 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 D3 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 D3 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 table below summarizes some of the other core capabilities of the Nikon D3 and Nikon D40 in connection with corresponding information for a sample of similar cameras.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Nikon D3»optical Y 3.0 922 fixed n 1/8000s 11.0 n n Nikon D3
 
Nikon D40«optical n 2.5 230 fixed n 1/4000s 2.5 Y n Nikon D40
 
Canon 1D Mark III« »optical Y 3.0 230 fixed n 1/8000s 10.0 n n Canon 1D Mark III
 
Nikon D5« »optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5
 
Nikon D3400« »optical n 3.0 921 fixed n 1/4000s 5.0 Y n Nikon D3400
 
Nikon D4S« »optical Y 3.2 921 fixed n 1/8000s 11.0 n n Nikon D4S
 
Nikon D3300« »optical n 3.0 921 fixed n 1/4000s 5.0 Y n Nikon D3300
 
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 D3X« »optical Y 3.0 922 fixed n 1/8000s 5.0 n n Nikon D3X
 
Nikon D700« »optical Y 3.0 922 fixed n 1/8000s 8.0 Y n Nikon D700
 
Nikon D40X« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D40X
 
Nikon D300« »optical Y 3.0 922 fixed n 1/8000s 6.0 Y n Nikon D300
 
Nikon D2Xs« »optical Y 2.5 230 fixed n 1/8000s 5.0 n n Nikon D2Xs
 
Nikon D50« »optical n 2.0 130 fixed n 1/4000s 2.5 Y n Nikon D50
 
Nikon D2X« »optical Y 2.5 235 fixed n 1/8000s 5.0 n n Nikon D2X

One feature that is present on the D3, 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 Nikon D3 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 D3 writes its imaging data to Compact Flash cards, while the D40 uses SDHC cards. The D3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D40 only has one slot.

 

Connectivity comparison

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 D3 and Nikon D40 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Nikon D3»Y----mini2.0---Nikon D3
 
Nikon D40«Y-----2.0---Nikon D40
 
Canon 1D Mark III« »Y-----2.0---Canon 1D Mark III
 
Nikon D5« »YstereomonoYYmini3.0---Nikon D5
 
Nikon D3400« »Ymonomono--mini2.0--YNikon D3400
 
Nikon D4S« »YmonomonoYYmini2.0---Nikon D4S
 
Nikon D3300« »YmonomonoY-mini2.0---Nikon D3300
 
Nikon D4« »Ymonomono--micro2.0---Nikon D4
 
Nikon D3100« »Ymonomono--mini2.0---Nikon D3100
 
Nikon D3S« »Ystereo---mini2.0---Nikon D3S
 
Nikon D3X« »Y----mini2.0---Nikon D3X
 
Nikon D700« »Y----mini2.0---Nikon D700
 
Nikon D40X« »Y-----2.0---Nikon D40X
 
Nikon D300« »Y----mini2.0---Nikon D300
 
Nikon D2Xs« »Y-----2.0---Nikon D2Xs
 
Nikon D50« »Y-----2.0---Nikon D50
 
Nikon D2X« »Y-----2.0---Nikon D2X

Studio photographers will appreciate that the Nikon D3 (unlike the D40) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D3 and the D40 have been discontinued, but can regularly be found used on eBay. The D40 was replaced by the Nikon D40X, while the D3 was followed by the Nikon D4. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon website.


Review summary

So what conclusions can be drawn? Is the Nikon D3 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 Nikon D3:

  • More detail: Offers more megapixels (12.1 vs 6MP) with a 42% higher linear resolution.
  • Better image quality: Scores substantially higher (25 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.5 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.2 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2 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 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 (922k vs 230k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (11 vs 2.5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (4300 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: Is somewhat more recent (announced 9 months after the D40).


Advantages of the Nikon D40:

  • More compact: Is smaller (124x94mm vs 160x157mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 778g or 60 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 on the market for longer (launched in November 2006).

If the count of individual advantages (bullet points above) is taken as a guide, the D3 is the clear winner of the match-up (19 : 5 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 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.

D3 19:05 D40

How about other alternatives? Do the specifications of the Nikon D3 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D3 or the D40. 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.

Expert reviews

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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Nikon D3»-+ +5/5o4.5/5 Aug 2007 4,999- i Nikon D3
 
Nikon D40«81/100+ +o5/54.5/5 Nov 2006 499- i Nikon D40
 
Canon 1D Mark III« »---o- Feb 2007 4,499- i Canon 1D Mark III
 
Nikon D5« »-89/1004.5/55/55/5 Jan 2016 6,499 i i Nikon D5
 
Nikon D3400« »+76/1004/54.5/54.5/5 Aug 2016 499- i Nikon D3400
 
Nikon D4S« »--4.5/55/54.5/5 Feb 2014 6,499- i Nikon D4S
 
Nikon D3300« »+77/1004.5/54.5/54.5/5 Jan 2014 499- i Nikon D3300
 
Nikon D4« »--4.5/5-4.5/5 Jan 2012 5,999- i Nikon D4
 
Nikon D3100« »+ +72/1004.5/55/54.5/5 Aug 2010 599- i Nikon D3100
 
Nikon D3S« »-89/1004.5/55/55/5 Oct 2009 5,199- i Nikon D3S
 
Nikon D3X« »-86/1004/55/55/5 Dec 2008 7,999- i Nikon D3X
 
Nikon D700« »89/100+ +4.5/55/54.5/5 Jul 2008 2,999- i Nikon D700
 
Nikon D40X« »79/100+ +4/5o4/5 Mar 2007 729- i Nikon D40X
 
Nikon D300« »+ ++ +5/5o4.5/5 Aug 2007 1,799- i Nikon D300
 
Nikon D2Xs« »---o- Jun 2006 4,699- i Nikon D2Xs
 
Nikon D50« »78/100+ +4/5o4.5/5 Apr 2005 749- i Nikon D50
 
Nikon D2X« »-+ +-o- Sep 2004 4,999- i Nikon D2X
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 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.

Nikon D3:
Check Ebay offers
Nikon D40:
Check Ebay offers

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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Nikon D3 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 Specifications
    Camera Model Nikon D3 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 2007 November 2006
    Launch Price USD 4999 USD 499
    Sensor Specs Nikon D3 Nikon D40
    Sensor Technology CMOS CCD
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 23.9 mm 23.7 x 15.6 mm
    Sensor Area 860.4 mm2 369.72 mm2
    Sensor Diagonal 43.2 mm 28.4 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 12.1 Megapixels 6 Megapixels
    Image Resolution 4256 x 2832 pixels 3008 x 2000 pixels
    Pixel Pitch 8.43 μm 7.85 μm
    Pixel Density 1.40 MP/cm2 1.63 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 200-6400 ISO 200-1600 ISO
    ISO Boost 100-25600 ISO 200-3200 ISO
    DXO Sensor Quality (score) 81 56
    DXO Color Depth (bits) 23.5 21.0
    DXO Dynamic Range (EV) 12.2 11.0
    DXO Low Light (ISO) 2290 561
    Screen Specs Nikon D3 Nikon D40
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.70x 0.53x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 3.0 inch 2.5 inch
    LCD Resolution 922k dots 230k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D3 Nikon D40
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 11 shutter flaps/s 2.5 shutter flaps/s
    Shutter Life Expectancy300 000 actuations50 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium CF cards SDHC cards
    Second Storage Option Dual card slots Single card slot
    Connectivity Specs Nikon D3 Nikon D40
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D3 Nikon D40
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type EN-EL4a EN-EL9
    Battery Life (CIPA)4300 shots per charge470 shots per charge
    Body Dimensions 160 x 157 x 88 mm
    (6.3 x 6.2 x 3.5 in)
    124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    Camera Weight 1300 g (45.9 oz) 522 g (18.4 oz)

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