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Nikon D100 vs D40X

The Nikon D100 and the Nikon D40X are two digital cameras that were announced, respectively, in February 2002 and March 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D100 has a resolution of 6 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 D100   Nikon D40X
Nikon D100 Nikon D40X
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Nikon F mount lenses
6 MP, APS-C Sensor 10 MP, APS-C Sensor
no Video no Video
ISO 200-800 (200-1600) ISO 100-1600 (100-3200)
Optical viewfinder Optical viewfinder
1.8" LCD, 118k dots 2.5" LCD, 230k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3 shutter flaps per second 3 shutter flaps per second
370 shots per battery charge520 shots per battery charge
144 x 116 x 81 mm, 780 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 D100 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.

Body comparison

The physical size and weight of the Nikon D100 and the Nikon D40X 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 size dimensions are rounded to the nearest millimeter.

The D40X can be obtained in two different colors (black, silver), while the D100 is only available in black.

Size Nikon D100 vs Nikon D40X
Compare D100 versus D40X top
Comparison D100 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 D100. Moreover, the D40X is markedly lighter (33 percent) than the D100. In this context, it is worth noting that neither the D100 nor the D40X are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Nikon Lens Catalog.

Concerning battery life, the D100 gets 370 shots out of its EN-EL3 battery, while the D40X can take 520 images on a single charge of its 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, 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.

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 D100» 5.7 in 4.6 in 3.2 in 27.5 oz 370 n Feb 2002 1,999- i Nikon D100
 
Nikon D40X« 4.9 in 3.7 in 2.5 in 18.4 oz 520 n Mar 2007 729- i Nikon D40X
 
Canon 10D« » 5.9 in 4.2 in 3.0 in 30.0 oz 500 n Feb 2003 1,999- i Canon 10D
 
Nikon D3000« » 5.0 in 3.8 in 2.5 in 18.9 oz 500 n Jul 2009 599- i Nikon D3000
 
Nikon D5000« » 5.0 in 4.1 in 3.1 in 20.8 oz 510 n Apr 2009 749- i Nikon D5000
 
Nikon D60« » 5.0 in 3.7 in 2.5 in 18.4 oz 500 n Jan 2008 629- i Nikon D60
 
Nikon D90« » 5.2 in 4.1 in 3.0 in 24.8 oz 850 n Aug 2008 1,299- i Nikon D90
 
Nikon D300« » 5.8 in 4.5 in 2.9 in 32.6 oz 1000 Y Aug 2007 1,799- i Nikon D300
 
Nikon D40« » 4.9 in 3.7 in 2.5 in 18.4 oz 470 n Nov 2006 499- i Nikon D40
 
Nikon D80« » 5.2 in 4.1 in 3.0 in 23.6 oz 600 n Aug 2006 999- i Nikon D80
 
Nikon D50« » 5.2 in 4.0 in 3.0 in 21.9 oz 400 n Apr 2005 749- i Nikon D50
 
Nikon D70s« » 5.5 in 4.4 in 3.1 in 24.0 oz 500 n Apr 2005 899- i Nikon D70s
 
Nikon D200« » 5.8 in 4.4 in 2.9 in 32.5 oz 400 Y Nov 2005 1,699- i Nikon D200
 
Nikon D70« » 5.5 in 4.4 in 3.1 in 24.0 oz 400 n Jan 2004 999- i Nikon D70
 
Nikon D1X« » 6.2 in 6.0 in 3.3 in 38.8 oz 1200 Y Feb 2001 5,999- i Nikon D1X
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 D40X was launched at a markedly lower price (by 64 percent) than the D100, 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 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. 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the D40X is 1 percent bigger. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around CCD sensors.

Nikon D100 and Nikon D40X sensor measures

With 10MP, the D40X offers a higher resolution than the D100 (6MP), but the D40X has smaller individual pixels (pixel pitch of 6.11μm versus 7.85μm for the D100). Yet, the D40X is a much more recent model (by 5 years) than the D100, 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 D40X implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D40X for good quality output (200 dots per inch) amounts to 19.4 x 13 inch or 49.2 x 32.9 cm, for very good quality (250 dpi) 15.5 x 10.4 inch or 39.3 x 26.3 cm, and for excellent quality (300 dpi) 12.9 x 8.6 inch or 32.8 x 21.9 cm. The corresponding values for the Nikon D100 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 D100 has a native sensitivity range from ISO 200 to ISO 800, which can be extended to ISO 200-1600. 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.

D100 versus D40X MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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"). 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 D100» APS-C 6.0 3008 2000-----Nikon D100
 
Nikon D40X« APS-C 10.0 3872 2592-22.411.451663Nikon D40X
 
Canon 10D« » APS-C 6.3 3072 2048-21.110.957157Canon 10D
 
Nikon D3000« » APS-C 10.0 3872 2592-22.311.156362Nikon D3000
 
Nikon D5000« » APS-C 12.2 4288 2848720/24p22.712.586872Nikon D5000
 
Nikon D60« » APS-C 10.0 3872 2592-22.511.456265Nikon D60
 
Nikon D90« » APS-C 12.2 4288 2848720/24p22.712.597773Nikon D90
 
Nikon D300« » APS-C 12.2 4288 2848-22.112.067967Nikon D300
 
Nikon D40« » APS-C 6.0 3008 2000-21.011.056156Nikon D40
 
Nikon D80« » APS-C 10.0 3872 2592-22.111.252461Nikon D80
 
Nikon D50« » APS-C 6.0 3008 2000-20.910.856055Nikon D50
 
Nikon D70s« » APS-C 6.0 3008 2000-20.410.352950Nikon D70s
 
Nikon D200« » APS-C 10.0 3872 2592-22.311.558364Nikon D200
 
Nikon D70« » APS-C 6.0 3008 2000-20.410.352950Nikon D70
 
Nikon D1X« » APS-C 5.9 3008 1960-----Nikon D1X
Neither the D100 nor the D40X offer Live View, so that they cannot project the live image that the sensor receives onto the rear screen. Moreover, both cameras are still-image focused and cannot record videos.
 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The D100 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 viewfinders of both cameras offer the same field of view (95%), as well as the same magnification (0.53x). The table below summarizes some of the other core capabilities of the Nikon D100 and Nikon D40X 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 D100»optical Y 1.8 118 fixed n 1/4000s 3.0 Y n Nikon D100
 
Nikon D40X«optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D40X
 
Canon 10D« »optical Y 1.8 118 fixed n 1/4000s 3.0 Y n Canon 10D
 
Nikon D3000« »optical n 3.0 230 fixed n 1/4000s 3.0 Y n Nikon D3000
 
Nikon D5000« »optical n 2.7 230 full-flex n 1/4000s 4.0 Y n Nikon D5000
 
Nikon D60« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Nikon D60
 
Nikon D90« »optical Y 3.0 920 fixed n 1/4000s 4.5 Y n Nikon D90
 
Nikon D300« »optical Y 3.0 922 fixed n 1/8000s 6.0 Y n Nikon D300
 
Nikon D40« »optical n 2.5 230 fixed n 1/4000s 2.5 Y n Nikon D40
 
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 D200« »optical Y 2.5 230 fixed n 1/8000s 5.0 Y n Nikon D200
 
Nikon D70« »optical n 1.8 130 fixed n 1/8000s 3.0 Y n Nikon D70
 
Nikon D1X« »optical Y 2.0 120 fixed n 1/16000s 3.0 n n Nikon D1X

One feature that is present on the D100, 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 D100 writes its imaging data to Compact Flash cards, while the D40X uses SDHC cards.

 

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 D100 and Nikon D40X 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 D100»Y-----1.1---Nikon D100
 
Nikon D40X«Y-----2.0---Nikon D40X
 
Canon 10D« »Y-----1.1---Canon 10D
 
Nikon D3000« »Y-----2.0---Nikon D3000
 
Nikon D5000« »Ymonomono--mini2.0---Nikon D5000
 
Nikon D60« »Y-----2.0---Nikon D60
 
Nikon D90« »Ymonomono--mini2.0---Nikon D90
 
Nikon D300« »Y----mini2.0---Nikon D300
 
Nikon D40« »Y-----2.0---Nikon D40
 
Nikon D80« »Y-----2.0---Nikon D80
 
Nikon D50« »Y-----2.0---Nikon D50
 
Nikon D70s« »Y-----2.0---Nikon D70s
 
Nikon D200« »Y-----2.0---Nikon D200
 
Nikon D70« »Y-----1.0---Nikon D70
 
Nikon D1X« »Y-----FW---Nikon D1X

Both the D100 and the D40X have been discontinued, but can regularly be found used on eBay. The D100 was replaced by the Nikon D200, while the D40X was followed by the Nikon D60 . 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? Which of the two cameras – the Nikon D100 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.


Advantages of the Nikon D100:

  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • More heavily discounted: Has been available for much longer (launched in February 2002).


Reasons to prefer the Nikon D40X:

  • More detail: Has more megapixels (10 vs 6MP), which boosts linear resolution by 29%.
  • Larger screen: Has a bigger rear LCD (2.5" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (230k vs 118k dots).
  • More compact: Is smaller (124x94mm vs 144x116mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 258g or 33 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (520 versus 370) out of a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
  • More affordable: Was introduced into a lower priced category (64 percent cheaper at launch).
  • More modern: Reflects 5 years of technical progress since the D100 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the D40X is the clear winner of the contest (9 : 2 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D100 02:09 D40X

How about other alternatives? Do the specifications of the Nikon D100 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the D100 and the D40X 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.

Expert reviews

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.

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 D100»-+ +oo- Feb 2002 1,999- i Nikon D100
 
Nikon D40X«79/100+ +4/5o4/5 Mar 2007 729- i Nikon D40X
 
Canon 10D« »-+ +-o- Feb 2003 1,999- i Canon 10D
 
Nikon D3000« »+72/1004/53.5/54.5/5 Jul 2009 599- i Nikon D3000
 
Nikon D5000« »+ +75/1004/55/54.5/5 Apr 2009 749- i Nikon D5000
 
Nikon D60« »80/100+ +4/5o4.5/5 Jan 2008 629- i Nikon D60
 
Nikon D90« »+ ++ +4/55/54.5/5 Aug 2008 1,299- i Nikon D90
 
Nikon D300« »+ ++ +5/5o4.5/5 Aug 2007 1,799- i Nikon D300
 
Nikon D40« »81/100+ +o5/54.5/5 Nov 2006 499- i Nikon D40
 
Nikon D80« »++ +o4.5/54.5/5 Aug 2006 999- i Nikon D80
 
Nikon D50« »78/100+ +4/5o4.5/5 Apr 2005 749- i Nikon D50
 
Nikon D70s« »---o5/5 Apr 2005 899- i Nikon D70s
 
Nikon D200« »+ ++ +o5/5- Nov 2005 1,699- i Nikon D200
 
Nikon D70« »-+ +-o- Jan 2004 999- i Nikon D70
 
Nikon D1X« »-+ +-o- Feb 2001 5,999- i Nikon D1X
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Nikon D100:
Check Ebay offers
Nikon D40X:
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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D100 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 D100 Nikon D40X
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Nikon F mount lenses
    Launch Date February 2002 March 2007
    Launch Price USD 1999 USD 729
    Sensor Specs Nikon D100 Nikon D40X
    Sensor Technology CCD CCD
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.7 x 15.6 mm 23.6 x 15.8 mm
    Sensor Area 369.72 mm2 372.88 mm2
    Sensor Diagonal 28.4 mm 28.4 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 6 Megapixels 10 Megapixels
    Image Resolution 3008 x 2000 pixels 3872 x 2592 pixels
    Pixel Pitch 7.85 μm 6.11 μm
    Pixel Density 1.63 MP/cm2 2.69 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 200-800 ISO 100-1600 ISO
    ISO Boost 200-1600 ISO 100-3200 ISO
    DXO Sensor Quality (score) .. 63
    DXO Color Depth (bits) .. 22.4
    DXO Dynamic Range (EV) .. 11.4
    DXO Low Light (ISO) .. 516
    Screen Specs Nikon D100 Nikon D40X
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.53x 0.53x
    Top-Level Screen Control Panel no Top Display
    Rear LCD Size 1.8 inch 2.5 inch
    LCD Resolution 118k dots 230k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Nikon D100 Nikon D40X
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 3 shutter flaps/s 3 shutter flaps/s
    Shutter Life Expectancy50 000 actuations50 000 actuations
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium CF cards SDHC cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Nikon D100 Nikon D40X
    External Flash Hotshoe Hotshoe
    USB Connector USB 1.1 USB 2.0
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Nikon D100 Nikon D40X
    Battery Type EN-EL3 EN-EL9
    Battery Life (CIPA)370 shots per charge520 shots per charge
    Body Dimensions 144 x 116 x 81 mm
    (5.7 x 4.6 x 3.2 in)
    124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    Camera Weight 780 g (27.5 oz) 522 g (18.4 oz)

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