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Nikon D300 vs D40X

The Nikon D300 and the Nikon D40X are two digital cameras that were announced, respectively, in August 2007 and March 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D300 has a resolution of 12.2 megapixels, whereas the D40X provides 10 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Nikon D300
versus
Nikon D40X
Nikon D300   Nikon D40X
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Nikon F mount lenses
12.2 MP – APS-C sensor 10 MP – APS-C sensor
no Video no Video
ISO 200-3,200 (100 - 6,400) ISO 100-1,600 (100 - 3,200)
Optical viewfinder Optical viewfinder
3.0" LCD – 922k dots 2.5" LCD – 230k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
6 shutter flaps per second 3 shutter flaps per second
Weathersealed bodynot weather sealed
1000 shots per battery charge520 shots per battery charge
147 x 114 x 74 mm, 925 g 124 x 94 x 64 mm, 522 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D300 and the Nikon D40X? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Nikon D300 and the Nikon D40X. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

The D40X can be obtained in two different colors (black, silver), while the D300 is only available in black.

Size Nikon D300 vs Nikon D40X
Compare D300 versus D40X top
Comparison D300 or D40X rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D40X is considerably smaller (30 percent) than the Nikon D300. Moreover, the D40X is substantially lighter (44 percent) than the D300. It is worth mentioning in this context that the D300 is splash and dust resistant, while the D40X 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. 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.

Concerning battery life, the D300 gets 1000 shots out of its Nikon EN-EL3e battery, while the D40X can take 520 images on a single charge of its Nikon EN-EL9 power pack.

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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D300 147 mm 114 mm 74 mm 925 g 1000 Y Aug 2007 US$ 1 799ebay.com
2.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 US$ 729ebay.com
3.
 
Nikon D2X 158 mm 150 mm 86 mm 1252 g 3800 Y Sep 2004 US$ 4 999ebay.com
4.
 
Nikon D2Xs 158 mm 150 mm 86 mm 1252 g 3800 Y Jun 2006 US$ 4 699ebay.com
5.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 US$ 499ebay.com
6.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 US$ 629ebay.com
7.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 US$ 999ebay.com
8.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 US$ 1 299ebay.com
9.
 
Nikon D200 147 mm 113 mm 74 mm 920 g 400 Y Nov 2005 US$ 1 699ebay.com
10.
 
Nikon D300S 147 mm 115 mm 81 mm 938 g 950 Y Jul 2009 US$ 1 799ebay.com
11.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 US$ 2 999ebay.com
12.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 US$ 599ebay.com
13.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 US$ 749ebay.com
14.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 US$ 1 499ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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 D40X was launched at a markedly lower price (by 59 percent) than the D300, 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.

Sensor comparison

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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.5. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D300 and Nikon D40X sensor measures

While the two cameras under review share the same sensor size, the D300 offers a higher resolution of 12.2 megapixels, compared with 10 MP of the D40X. This megapixels advantage translates into a 11 percent gain in linear resolution. On the other hand, these sensor specs imply that the D300 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.53μm versus 6.11μm for the D40X). In this context, it should be noted, however, that the D300 is a somewhat more recent model (by 5 months) than the D40X, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

The resolution advantage of the Nikon D300 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D300 for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inches or 54.5 x 36.2 cm, for very good quality (250 dpi) 17.2 x 11.4 inches or 43.6 x 28.9 cm, and for excellent quality (300 dpi) 14.3 x 9.5 inches or 36.3 x 24.1 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 D300 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Nikon D40X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.

In terms of underlying technology, the D300 is build around a CMOS sensor, while the D40X uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D300 versus D40X MP

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 D300 has a notably higher overall DXO score than the D40X (overall score 4 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.3 bits lower color depth, 0.6 EV in additional dynamic range, and 0.4 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D300 APS-C 12.2 4288 2848none22.112.067967
2.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
3.
 
Nikon D2X APS-C 12.2 4288 2848none22.110.947659
4.
 
Nikon D2Xs APS-C 12.2 4288 2848none22.210.948959
5.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.056156
6.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
7.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
8.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
9.
 
Nikon D200 APS-C 10.0 3872 2592none22.311.558364
10.
 
Nikon D300S APS-C 12.2 4288 2848720/24p22.512.278770
11.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
12.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
13.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
14.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
The D300 offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The D40X lacks this capability. Both cameras are still-image focused and cannot record videos.
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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The D300 and the D40X 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 D300 offers a wider field of view (100%) than the one in the D40X (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the D300 has a higher magnification (0.63x 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 D300 and Nikon D40X along with similar information for a selection of comparators.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Nikon D300optical Y3.0 / 922 fixed n 1/8000s 6.0/s Y n
2.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
3.
 
Nikon D2Xoptical Y2.5 / 235 fixed n 1/8000s 5.0/s n n
4.
 
Nikon D2Xsoptical Y2.5 / 230 fixed n 1/8000s 5.0/s n n
5.
 
Nikon D40optical n2.5 / 230 fixed n 1/4000s 2.5/s Y n
6.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
7.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
9.
 
Nikon D200optical Y2.5 / 230 fixed n 1/8000s 5.0/s Y n
10.
 
Nikon D300Soptical Y3.0 / 920 fixed n 1/8000s 7.0/s Y n
11.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
12.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
14.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the D300, but is missing on the D40X 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 D300 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 D300 writes its imaging data to Compact Flash cards, while the D40X uses SDHC cards.

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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 D300 and Nikon D40X and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D300Y- / ---mini2.0---
2.
 
Nikon D40XY- / ----2.0---
3.
 
Nikon D2XY- / ----2.0---
4.
 
Nikon D2XsY- / ----2.0---
5.
 
Nikon D40Y- / ----2.0---
6.
 
Nikon D60Y- / ----2.0---
7.
 
Nikon D80Y- / ----2.0---
8.
 
Nikon D90Ymono / mono--mini2.0---
9.
 
Nikon D200Y- / ----2.0---
10.
 
Nikon D300SYstereo / monoY-mini2.0---
11.
 
Nikon D700Y- / ---mini2.0---
12.
 
Nikon D3000Y- / ----2.0---
13.
 
Nikon D5000Ymono / mono--mini2.0---
14.
 
Nikon D7000Ymono / monoY-mini2.0---

Studio photographers will appreciate that the Nikon D300 (unlike the D40X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D300 and the D40X have been discontinued, but can regularly be found used on ebay. The D40X was replaced by the Nikon D60 , while the D300 was followed by the Nikon D300S. Further information on the features and operation of the D300 and D40X can be found, respectively, in the Nikon D300 Manual (free pdf) or the online Nikon D40X Manual.

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Review summary

So how do things add up? Which of the two cameras – the Nikon D300 or the Nikon D40X – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Nikon D300:

  • More detail: Offers more megapixels (12.2 vs 10MP) with a 10% higher linear resolution.
  • Better image quality: Scores markedly higher (4 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.6 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.4 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 (0.63x 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 (6 vs 3 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (1000 versus 520) 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.
  • More modern: Is somewhat more recent (announced 5 months after the D40X).


Advantages of the Nikon D40X:

  • More compact: Is smaller (124x94mm vs 147x114mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 403g or 44 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (59 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in March 2007).

If the count of individual advantages (bullet points above) is taken as a guide, the D300 is the clear winner of the match-up (16 : 4 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.

D300 16:04 D40X

How about other alternatives? Do the specifications of the Nikon D300 and the Nikon D40X 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 D300 or the D40X. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D300..+ +..+ +5/54.5/5 Aug 2007 US$ 1 799ebay.com
2.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 US$ 729ebay.com
3.
 
Nikon D2X......+ +.... Sep 2004 US$ 4 999ebay.com
4.
 
Nikon D2Xs............ Jun 2006 US$ 4 699ebay.com
5.
 
Nikon D40..81/100..+ +o4.5/5 Nov 2006 US$ 499ebay.com
6.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 US$ 629ebay.com
7.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 US$ 999ebay.com
8.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 US$ 1 299ebay.com
9.
 
Nikon D200..+ +..+ +o.. Nov 2005 US$ 1 699ebay.com
10.
 
Nikon D300S5/5+ +..82/1004/54.5/5 Jul 2009 US$ 1 799ebay.com
11.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 US$ 2 999ebay.com
12.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 US$ 599ebay.com
13.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 US$ 749ebay.com
14.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 US$ 1 499ebay.com
Note: (+ +) 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. 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.

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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 your choice using the following search menu. 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 D300 vs Nikon D40X

    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 D300 Nikon D40X
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Nikon F mount lenses
    Launch Date August 2007 March 2007
    Launch Price USD 1,799 USD 729
    Sensor Specs Nikon D300 Nikon D40X
    Sensor Technology CMOS CCD
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.8 mm 23.6 x 15.8 mm
    Sensor Area 372.88 mm2 372.88 mm2
    Sensor Diagonal 28.4 mm 28.4 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 12.2 Megapixels 10 Megapixels
    Image Resolution 4288 x 2848 pixels 3872 x 2592 pixels
    Pixel Pitch 5.53 μm 6.11 μm
    Pixel Density 3.28 MP/cm2 2.69 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 200 - 3,200 ISO 100 - 1,600 ISO
    ISO Boost 100 - 6,400 ISO 100 - 3,200 ISO
    Image Processor EXPEED EXPEED
    DXO Sensor Quality (score) 67 63
    DXO Color Depth (bits) 22.1 22.4
    DXO Dynamic Range (EV) 12.0 11.4
    DXO Low Light (ISO) 679 516
    Screen Specs Nikon D300 Nikon D40X
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.63x 0.53x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 3.0inch 2.5inch
    LCD Resolution 922k dots 230k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D300 Nikon D40X
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 6 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy150 000 actuations50 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF cards SDHC cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Nikon D300 Nikon D40X
    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 D300 Nikon D40X
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Nikon EN-EL3e Nikon EN-EL9
    Battery Life (CIPA)1000 shots per charge520 shots per charge
    Body Dimensions 147 x 114 x 74 mm
    (5.8 x 4.5 x 2.9 in)
    124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    Camera Weight 925 g (32.6 oz) 522 g (18.4 oz)
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