Leica S1 Contax Camera Ranking
APO-Telyt Module Vivitar Exif data
A potelyt.com – Photography & Imaging Resources
PW

Nikon D40X vs Sony A7R IV

The Nikon D40X and the Sony Alpha A7R IV are two digital cameras that were revealed to the public, respectively, in March 2007 and July 2019. The D40X is a DSLR, while the A7R IV is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D40X) and a full frame (A7R IV) sensor. The Nikon has a resolution of 10 megapixels, whereas the Sony provides 60.2 MP.

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

Headline Specifications
Nikon D40X
versus
Sony A7R IV
Nikon D40X   Sony A7R IV
Digital single lens reflex Mirrorless system camera
Nikon F mount lenses Sony E mount lenses
10 MP, APS-C Sensor 60.2 MP, Full Frame Sensor
no Video 4K/30p Video
ISO 100-1,600 (100 - 3,200) ISO 100-32,000 (50 - 102,400)
Optical viewfinder Electronic viewfinder (5760k dots)
2.5 LCD, 230k dots 3.0 LCD, 1440k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
520 shots per battery charge670 shots per battery charge
124 x 94 x 64 mm, 522 g 129 x 96 x 78 mm, 665 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D40X and the Sony Alpha A7R IV? 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 side-by-side display below illustrates the physical size and weight of the Nikon D40X and the Sony A7R IV. 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 dimensions are rounded to the nearest millimeter.

The D40X can be obtained in two different colors (black, silver), while the A7R IV is only available in black.

Size Nikon D40X vs Sony A7R IV
Compare D40X versus A7R IV top
Comparison D40X or A7R IV rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R IV is notably larger (6 percent) than the Nikon D40X. Moreover, the A7R IV is markedly heavier (27 percent) than the D40X. It is noteworthy in this context that the A7R IV is splash and dust-proof, 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D40X) and the Sony FE Lens Catalog (A7R IV). Mirrorless cameras, such as the A7R IV, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the D40X gets 520 shots out of its EN-EL9 battery, while the A7R IV can take 670 images on a single charge of its NP-FZ100 power pack. The power pack in the A7R IV can be charged via the USB port, which can be very convenient when travelling.

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.

scroll hint
Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729 i
2.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
3.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599 i
4.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599 i
5.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749 i
6.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629 i
7.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299 i
8.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499 i
9.
 
Nikon D80 132 mm 103 mm 77 mm 668 g 600 n Aug 2006 999 i
10.
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 749 i
11.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599 i
12.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 599 i
13.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 i
14.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199 i
15.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499 i
16.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199 i
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 79 percent) than the A7R IV, 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Nikon D40X features an APS-C sensor and the Sony A7R IV a full frame sensor. The sensor area in the A7R IV is 128 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 D40X and Sony A7R IV sensor measures

With 60.2MP, the A7R IV offers a higher resolution than the D40X (10MP), but the A7R IV has smaller individual pixels (pixel pitch of 3.76μm versus 6.11μm for the D40X). Yet, the A7R IV is a much more recent model (by 12 years and 4 months) than the D40X, 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 A7R IV has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 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 A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the D40X, the A7R IV has the capacity to capture high quality composite images (241MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Nikon D40X has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Sony Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

D40X versus A7R IV MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 consideration, the A7R IV offers substantially better image quality than the D40X (overall score 36 points higher). The advantage is based on 3.6 bits higher color depth, 3.4 EV in additional dynamic range, and 2.7 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

scroll hint
Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.4516 63
2.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.83344 99
3.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.3919 67
4.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.1563 62
5.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.5868 72
6.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.4562 65
7.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.5977 73
8.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.0561 56
9.
 
Nikon D80 APS-C 10.0 3872 2592none22.111.2524 61
10.
 
Nikon D50 APS-C 6.0 3008 2000none20.910.8560 55
11.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.4527 56
12.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.8429 55
13.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.92520 86
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523 100
15.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.33517 92
16.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.93434 98
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.32993 85

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A7R IV indeed provides for movie recording, while the D40X does not. The highest resolution format that the A7R IV can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R IV has an electronic viewfinder (5760k dots), while the D40X 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 A7R IV 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 A7R IV has a higher magnification (0.78x vs 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Nikon D40X, the Sony A7R IV, and comparable cameras.

scroll hint
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
1.
 
Nikon D40Xoptical n 2.5 230 fixed n 1/4000s 3.0 Y n
2.
 
Sony A7R IV5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
3.
 
Nikon D3100optical n 3.0 230 fixed n 1/4000s 3.0 Y n
4.
 
Nikon D3000optical n 3.0 230 fixed n 1/4000s 3.0 Y n
5.
 
Nikon D5000optical n 2.7 230 full-flex n 1/4000s 4.0 Y n
6.
 
Nikon D60optical n 2.5 230 fixed n 1/4000s 3.0 Y n
7.
 
Nikon D90optical Y 3.0 920 fixed n 1/4000s 4.5 Y n
8.
 
Nikon D40optical n 2.5 230 fixed n 1/4000s 2.5 Y n
9.
 
Nikon D80optical n 2.5 230 fixed n 1/4000s 3.0 Y n
10.
 
Nikon D50optical n 2.0 130 fixed n 1/4000s 2.5 Y n
11.
 
Olympus E-420optical n 2.7 215 fixed n 1/4000s 3.5 Y n
12.
 
Panasonic L10optical n 2.5 207 swivel n 1/4000s 3.0 Y n
13.
 
Sony A7S III9440 n 3.0 1440 swivel Y 1/8000s 10.0 n Y
14.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
15.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
16.
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
17.
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y

One difference between the cameras concerns the presence of an on-board flash. The D40X has one, while the A7R IV does not. While the built-in flash of the D40X 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 A7R IV 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 Sony A7R IV 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 D40X writes its imaging data to SDHC cards, while the A7R IV uses SDXC cards. The A7R IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the D40X only has one slot. The A7R IV supports UHS-II cards (on both slots), while the D40X cannot take advantage of Ultra High Speed SD 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 D40X and Sony Alpha A7R IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

scroll hint
Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D40XY-----2.0---
2.
 
Sony A7R IVYstereomonoYYmicro3.1YYY
3.
 
Nikon D3100Ymonomono--mini2.0---
4.
 
Nikon D3000Y-----2.0---
5.
 
Nikon D5000Ymonomono--mini2.0---
6.
 
Nikon D60Y-----2.0---
7.
 
Nikon D90Ymonomono--mini2.0---
8.
 
Nikon D40Y-----2.0---
9.
 
Nikon D80Y-----2.0---
10.
 
Nikon D50Y-----2.0---
11.
 
Olympus E-420Y-----2.0---
12.
 
Panasonic L10Y-----2.0---
13.
 
Sony A7S IIIYstereomonoYYfull3.2Y-Y
14.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
15.
 
Sony A9YstereomonoYYmicro2.0YYY
16.
 
Sony A7R IIYstereomonoYYmicro2.0YY-
17.
 
Sony A7S IIYstereomonoYYmicro2.0YY-

It is notable that the A7R IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D40X does not provide wifi capability.

Studio photographers will appreciate that the Sony A7R IV (unlike the D40X) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A7R IV is a recent model that features in the current product line-up of Sony. In contrast, the D40X has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the D40X was succeeded 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 and Sony websites.

Review summary

So what is the bottom line? Is there a clear favorite between the Nikon D40X and the Sony A7R IV? Which camera is better? The listing below highlights the relative strengths of the two models.

ilogo

Arguments in favor of the Nikon D40X:

  • 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.
  • Less heavy: Is lighter (by 143g or 22 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 (79 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2007).

ilogo

Reasons to prefer the Sony Alpha A7R IV:

  • More detail: Has more megapixels (60.2 vs 10MP), which boosts linear resolution by 145%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (36 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (3.6 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 (2.7 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 4K/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 (0.78x vs 0.53x).
  • 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 (1440k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 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.
  • Longer lasting: Gets more shots (670 versus 520) 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.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • 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.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
  • More modern: Reflects 12 years and 4 months of technical progress since the D40X launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7R IV is the clear winner of the contest (33 : 6 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.

D40X 06:33 A7R IV

How about other alternatives? Do the specifications of the Nikon D40X and the Sony A7R IV 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the D40X or the A7R IV perform in practice. 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], 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.

scroll hint
Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40X..79/100+ +4/54/5 Mar 2007 729 i
2.
 
Sony A7R IV5/5+91/1004.5/55/5 Jul 2019 3,499 i
3.
 
Nikon D31005/5+ +72/1004.5/54.5/5 Aug 2010 599 i
4.
 
Nikon D3000..+72/1004/54.5/5 Jul 2009 599 i
5.
 
Nikon D5000..+ +75/1004/54.5/5 Apr 2009 749 i
6.
 
Nikon D60..80/100+ +4/54.5/5 Jan 2008 629 i
7.
 
Nikon D90..+ ++ +4/54.5/5 Aug 2008 1,299 i
8.
 
Nikon D40..81/100+ +o4.5/5 Nov 2006 499 i
9.
 
Nikon D80..++ +o4.5/5 Aug 2006 999 i
10.
 
Nikon D50..78/100+ +4/54.5/5 Apr 2005 749 i
11.
 
Olympus E-420..85/100+ +4/54.5/5 Mar 2008 599 i
12.
 
Panasonic L10..85/100+3.5/54/5 Aug 2007 599 i
13.
 
Sony A7S III..+ +91/1004.5/55/5 Jul 2020 3,499 i
14.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199 i
15.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499 i
16.
 
Sony A7R II5/5+ +90/1005/55/5 Jun 2015 3,199 i
17.
 
Sony A7S II5/5+..4.5/55/5 Sep 2015 2,999 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Nikon D40X:
Check Ebay offers
Sony A7R IV:
Check Amazon price

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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

~
    loader

    Specifications: Nikon D40X vs Sony A7R IV

    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 D40X Sony A7R IV
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Nikon F mount lenses Sony E mount lenses
    Launch Date March 2007 July 2019
    Launch Price USD 729 USD 3,499
    Sensor Specs Nikon D40X Sony A7R IV
    Sensor Technology CCD BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.6 x 15.8 mm 35.7 x 23.8 mm
    Sensor Area 372.88 mm2 849.66 mm2
    Sensor Diagonal 28.4 mm 42.9 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 10 Megapixels 60.2 Megapixels
    Image Resolution 3872 x 2592 pixels 9504 x 6336 pixels
    Pixel Pitch 6.11 μm 3.76 μm
    Pixel Density 2.69 MP/cm2 7.09 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 1,600 ISO 100 - 32,000 ISO
    ISO Boost 100 - 3,200 ISO 50 - 102,400 ISO
    Image Processor EXPEED BIONZ X
    DXO Sensor Quality (score) 63 99
    DXO Color Depth (bits) 22.4 26.0
    DXO Dynamic Range (EV) 11.4 14.8
    DXO Low Light (ISO) 516 3344
    Screen Specs Nikon D40X Sony A7R IV
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.78x
    Viewfinder Resolution 5760k dots
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 230k dots 1440k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Nikon D40X Sony A7R IV
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    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 SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no Dual UHS-II
    Connectivity Specs Nikon D40X Sony A7R IV
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port no HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Nikon D40X Sony A7R IV
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL9 NP-FZ100
    Battery Life (CIPA)520 shots per charge670 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)
    129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    Camera Weight 522 g (18.4 oz) 665 g (23.5 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

    You are here Home  »  CAM-parator  »  Nikon D40X vs Sony A7R IV

    Thanks for your vote!

    You rated this page 4 out of 5.


    Rating

    Any additional comment or suggestion for improvement would be welcome.


    If you like it, make sure you share it:

    • Mention this page to your Facebook friends and Twitter followers.
    • Bookmark it in your browser for future reference by pressing "Crtl" + "D".
    • Create a hyperlink by copying the text below into your web-project or discussion forum entry.

    Once again, thanks for taking the time to provide feedback. I appreciate it.