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Nikon D40 vs Z9

The Nikon D40 and the Nikon Z9 are two digital cameras that were officially introduced, respectively, in November 2006 and October 2021. The D40 is a DSLR, while the Z9 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D40) and a full frame (Z9) sensor. The D40 has a resolution of 6 megapixels, whereas the Z9 provides 45.4 MP.

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

Headline Specifications
Nikon D40
versus
Nikon Z9
Nikon D40   Nikon Z9
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Nikon Z mount lenses
6 MP – APS-C sensor 45.4 MP – Full Frame sensor
no Video 8K/30p Video
ISO 200-1,600 (200 - 3,200) ISO 64-25,600 (32 - 102,400)
Optical viewfinder Electronic viewfinder (3690k dots)
2.5" LCD – 230k dots 3.2" LCD – 2089k dots
Fixed screen (not touch-sensitive) Fully flexible touchscreen
2.5 shutter flaps per second 30 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
470 shots per battery charge740 shots per battery charge
124 x 94 x 64 mm, 522 g 149 x 150 x 91 mm, 1340 g
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Check D40 offers at
ebay.com
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Check Z9 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D40 and the Nikon Z9? 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

An illustration of the physical size and weight of the Nikon D40 and the Nikon Z9 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.

Size Nikon D40 vs Nikon Z9
Compare D40 versus Z9 top
Comparison D40 or Z9 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon Z9 is considerably larger (92 percent) than the Nikon D40. Moreover, the Z9 is substantially heavier (157 percent) than the D40. It is noteworthy in this context that the Z9 is splash and dust-proof, while the D40 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the D40 gets 470 shots out of its Nikon EN-EL9 battery, while the Z9 can take 740 images on a single charge of its Nikon EN-EL18d power pack. As can be seen in the images above, the Z9 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 power pack in the Z9 can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499ebay.com
2.
 
Nikon Z9 149 mm 150 mm 91 mm 1340 g 740 Y Oct 2021 5,499 amazon.com
3.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 amazon.com
4.
 
Nikon Z8 144 mm 119 mm 83 mm 910 g 340 Y May 2023 3,999 amazon.com
5.
 
Nikon D6 160 mm 163 mm 92 mm 1270 g 3580 Y Feb 2020 6,499 amazon.com
6.
 
Nikon Z7 II 134 mm 101 mm 70 mm 705 g 420 Y Oct 2020 2,999 amazon.com
7.
 
Nikon Z7 134 mm 101 mm 67 mm 675 g 330 Y Aug 2018 3,399ebay.com
8.
 
Nikon D3400 124 mm 98 mm 76 mm 445 g 1200 n Aug 2016 499ebay.com
9.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499ebay.com
10.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
11.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
12.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
13.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
14.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999ebay.com
15.
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 749ebay.com
16.
 
Nikon D70s 140 mm 111 mm 78 mm 679 g 500 n Apr 2005 899ebay.com
17.
 
Nikon D70 140 mm 111 mm 78 mm 679 g 400 n Jan 2004 999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
padding

Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The D40 was launched at a markedly lower price (by 91 percent) than the Z9, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will 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 D40 features an APS-C sensor and the Nikon Z9 a full frame sensor. The sensor area in the Z9 is 132 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Nikon D40 and Nikon Z9 sensor measures

With 45.4MP, the Z9 offers a higher resolution than the D40 (6MP), but the Z9 has smaller individual pixels (pixel pitch of 4.35μm versus 7.85μm for the D40). Yet, the Z9 is a much more recent model (by 14 years and 11 months) than the D40, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the Z9 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon Z9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Z9 for good quality output (200 dots per inch) amounts to 41.3 x 27.5 inches or 104.9 x 69.9 cm, for very good quality (250 dpi) 33 x 22 inches or 83.9 x 55.9 cm, and for excellent quality (300 dpi) 27.5 x 18.3 inches or 69.9 x 46.6 cm. The corresponding values for the Nikon D40 are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.

The Z9 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon D40 has a native sensitivity range from ISO 200 to ISO 1600, which can be extended to ISO 200-3200. The corresponding ISO settings for the Nikon Z9 are ISO 64 to ISO 25600, with the possibility to increase the ISO range to 32-102400.

In terms of underlying technology, the D40 is build around a CCD sensor, while the Z9 uses a Stacked BSI-CMOS 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.

D40 versus Z9 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"). Of the two cameras under consideration, the Z9 offers substantially better image quality than the D40 (overall score 42 points higher). The advantage is based on 5.3 bits higher color depth, 3.4 EV in additional dynamic range, and 2.1 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.056156
2.
 
Nikon Z9 Full Frame 45.4 8256 55048K/30p26.314.4245198
3.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
4.
 
Nikon Z8 Full Frame 45.4 8256 55048K/30p26.314.2254898
5.
 
Nikon D6 Full Frame 20.7 5568 37124K/30p25.314.3288695
6.
 
Nikon Z7 II Full Frame 45.4 8256 55044K/60p26.314.72841100
7.
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899
8.
 
Nikon D3400 APS-C 24.0 6000 40001080/60p24.813.9119286
9.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
10.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
11.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
12.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
13.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
14.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.252461
15.
 
Nikon D50 APS-C 6.0 3008 2000none20.910.856055
16.
 
Nikon D70s APS-C 6.0 3008 2000none20.410.352950
17.
 
Nikon D70 APS-C 6.0 3008 2000none20.410.352950
Note: DXO values in italics represent estimates based on sensor size and age.
padding

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The Z9 indeed provides for movie recording, while the D40 does not. The highest resolution format that the Z9 can use is 8K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the Z9 has an electronic viewfinder (3690k dots), while the D40 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the Z9 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 Z9 has a higher magnification (0.80x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon D40 and Nikon Z9 along with similar information for a selection of comparators.

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Core Features
# image 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 D40optical n2.5 / 230 fixed n 1/4000s 2.5/s Y n
2.
 
Nikon Z93690 Y3.2 / 2089 full-flex Y 1/32000s 30.0/s n Y
3.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
4.
 
Nikon Z83690 Y3.2 / 2089 full-flex Y 1/32000s 30.0/s n Y
5.
 
Nikon D6optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
6.
 
Nikon Z7 II3690 Y3.2 / 2100 tilting Y 1/8000s 10.0/s n Y
7.
 
Nikon Z73690 Y3.2 / 2100 tilting Y 1/8000s 9.0/s n Y
8.
 
Nikon D3400optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
9.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
10.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
11.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
12.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
14.
 
Nikon D80optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
15.
 
Nikon D50optical n2.0 / 130 fixed n 1/4000s 2.5/s Y n
16.
 
Nikon D70soptical n2.0 / 130 fixed n 1/8000s 3.0/s Y n
17.
 
Nikon D70optical n1.8 / 130 fixed n 1/8000s 3.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One difference between the cameras concerns the presence of an on-board flash. The D40 has one, while the Z9 does not. While the built-in flash of the D40 is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the Z9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Nikon Z9 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The D40 writes its imaging data to SDHC cards, while the Z9 uses CFexpress (type B) or XQD cards. The Z9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D40 only has one slot.

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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 D40 and Nikon Z9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D40Y- / ----2.0---
2.
 
Nikon Z9Ystereo / monoYYfull3.2Y-Y
3.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
4.
 
Nikon Z8Ystereo / monoYYfull3.2Y-Y
5.
 
Nikon D6Ystereo / monoYYmini3.1Y-Y
6.
 
Nikon Z7 IIYstereo / monoYYmicro3.2Y-Y
7.
 
Nikon Z7Ystereo / monoYYmicro3.1Y-Y
8.
 
Nikon D3400Ymono / mono--mini2.0--Y
9.
 
Nikon D3300Ymono / monoY-mini2.0---
10.
 
Nikon D3100Ymono / mono--mini2.0---
11.
 
Nikon D3000Y- / ----2.0---
12.
 
Nikon D60Y- / ----2.0---
13.
 
Nikon D40XY- / ----2.0---
14.
 
Nikon D80Y- / ----2.0---
15.
 
Nikon D50Y- / ----2.0---
16.
 
Nikon D70sY- / ----2.0---
17.
 
Nikon D70Y- / ----1.0---
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It is notable that the Z9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D40 does not provide wifi capability.

Studio photographers will appreciate that the Nikon Z9 (unlike the D40) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the Z9 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The Z9 is a recent model that features in the current product line-up of Nikon. In contrast, the D40 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D40 was succeeded by the Nikon D40X. Further information on the features and operation of the D40 and Z9 can be found, respectively, in the Nikon D40 Manual (free pdf) or the online Nikon Z9 Manual.

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Review summary

So what is the bottom line? Is the Nikon D40 better than the Nikon Z9 or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Nikon D40:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More compact: Is smaller (124x94mm vs 149x150mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 818g or 61 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (91 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in November 2006).


Advantages of the Nikon Z9:

  • More detail: Has more megapixels (45.4 vs 6MP), which boosts linear resolution by 175%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (42 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (5.3 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.1 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 8K/30p video.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (0.80x vs 0.53x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2089k vs 230k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/32000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (30 vs 2.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • 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: Gets more shots (740 versus 470) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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 14 years and 11 months of technical progress since the D40 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the Z9 is the clear winner of the contest (33 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional 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.

D40 07:33 Z9

How about other alternatives? Do the specifications of the Nikon D40 and the Nikon Z9 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings 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 incomplete and does no justice, for example, to the way the D40 or the Z9 perform in practice. 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 (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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40..81/100..+ +o4.5/5 Nov 2006 499ebay.com
2.
 
Nikon Z95/5..4.5/594/1005/55/5 Oct 2021 5,499 amazon.com
3.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 amazon.com
4.
 
Nikon Z85/5..5/594/1005/54.5/5 May 2023 3,999 amazon.com
5.
 
Nikon D6....4/5..4.5/54.5/5 Feb 2020 6,499 amazon.com
6.
 
Nikon Z7 II4.5/5..4.5/5..4.5/54.5/5 Oct 2020 2,999 amazon.com
7.
 
Nikon Z75/5+4.8/589/1004.5/55/5 Aug 2018 3,399ebay.com
8.
 
Nikon D34004/5+4/576/1004/54.5/5 Aug 2016 499ebay.com
9.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 499ebay.com
10.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
11.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
12.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
13.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
14.
 
Nikon D80..+..+ +o4.5/5 Aug 2006 999ebay.com
15.
 
Nikon D50..78/100..+ +4/54.5/5 Apr 2005 749ebay.com
16.
 
Nikon D70s..........5/5 Apr 2005 899ebay.com
17.
 
Nikon D70......+ +.... Jan 2004 999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
padding

The review scores listed above should be treated with care, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Check D40 offers at
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Check Z9 price at
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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 D40 vs Nikon Z9

    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 D40 Nikon Z9
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Nikon Z mount lenses
    Launch Date November 2006 October 2021
    Launch Price USD 499 USD 5,499
    Sensor Specs Nikon D40 Nikon Z9
    Sensor Technology CCD Stacked BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.7 x 15.6 mm 35.9 x 23.9 mm
    Sensor Area 369.72 mm2 858.01 mm2
    Sensor Diagonal 28.4 mm 43.1 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 6 Megapixels 45.4 Megapixels
    Image Resolution 3008 x 2000 pixels 8256 x 5504 pixels
    Pixel Pitch 7.85 μm 4.35 μm
    Pixel Density 1.63 MP/cm2 5.30 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 8K/30p Video
    ISO Setting 200 - 1,600 ISO 64 - 25,600 ISO
    ISO Boost 200 - 3,200 ISO 32 - 102,400 ISO
    DXO Sensor Quality (score) 56 98
    DXO Color Depth (bits) 21.0 26.3
    DXO Dynamic Range (EV) 11.0 14.4
    DXO Low Light (ISO) 561 2451
    Screen Specs Nikon D40 Nikon Z9
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.80x
    Viewfinder Resolution 3690k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.2inch
    LCD Resolution 230k dots 2089k dots
    LCD Attachment Fixed screen Fully flexible screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D40 Nikon Z9
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/32000s
    Continuous Shooting 2.5 shutter flaps/s 30 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDHC cards CFexB or XQD cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Nikon D40 Nikon Z9
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port no HDMI full HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D40 Nikon Z9
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Nikon EN-EL9 Nikon EN-EL18d
    Battery Life (CIPA)470 shots per charge740 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    149 x 150 x 91 mm
    (5.9 x 5.9 x 3.6 in)
    Camera Weight 522 g (18.4 oz) 1340 g (47.3 oz)
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