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Nikon D40X vs Sony A77

The Nikon D40X and the Sony Alpha SLT-A77 are two digital cameras that were announced, respectively, in March 2007 and August 2011. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Nikon has a resolution of 10 megapixels, whereas the Sony provides 24 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 A77
Nikon D40X   Sony A77
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Sony A mount lenses
10 MP – APS-C sensor 24 MP – APS-C sensor
no Video 1080/60p Video
ISO 100-1,600 (100 - 3,200) ISO 100-16,000 (50 - 25,600)
Optical viewfinder Electronic viewfinder (2359k dots)
2.5" LCD – 230k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Fully flexible screen (no touchscreen)
3 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
520 shots per battery charge470 shots per battery charge
124 x 94 x 64 mm, 522 g 143 x 104 x 81 mm, 732 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D40X and the Sony Alpha SLT-A77? 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 A77. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side 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 A77 is only available in black.

Size Nikon D40X vs Sony A77
Compare D40X versus A77 top
Comparison D40X or A77 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 is notably larger (28 percent) than the Nikon D40X. Moreover, the A77 is substantially heavier (40 percent) than the D40X. It is noteworthy in this context that the A77 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. 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 D40X gets 520 shots out of its EN-EL9 battery, while the A77 can take 470 images on a single charge of its NP-FM500H power pack.

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
    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 729ebay.com
2.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399ebay.com
3.
 
Canon 450D 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799ebay.com
4.
 
Canon 400D 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799ebay.com
5.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 599ebay.com
6.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
7.
 
Nikon D5000 127 mm 104 mm 80 mm 590 g 510 n Apr 2009 749ebay.com
8.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
9.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299ebay.com
10.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 499ebay.com
11.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
12.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999ebay.com
13.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 599ebay.com
14.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
15.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
16.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 1,199ebay.com
17.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 2,799ebay.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 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 48 percent) than the A77, 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 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 associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A77 is 2 percent smaller. 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.

Nikon D40X and Sony A77 sensor measures

Despite having a slightly smaller sensor, the A77 offers a higher resolution of 24 megapixels, compared with 10 MP of the D40X. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.91μm versus 6.11μm for the D40X). However, it should be noted that the A77 is much more recent (by 4 years and 5 months) than the D40X, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 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 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 SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.

In terms of underlying technology, the D40X is build around a CCD sensor, while the A77 uses a 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.

D40X versus A77 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under consideration, the A77 offers substantially better image quality than the D40X (overall score 15 points higher). The advantage is based on 1.6 bits higher color depth, 1.8 EV in additional dynamic range, and 0.6 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
    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 2592none22.411.451663
2.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
3.
 
Canon 450D APS-C 12.2 4272 2848none21.910.869261
4.
 
Canon 400D APS-C 10.1 3888 2592none22.111.066462
5.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
6.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
7.
 
Nikon D5000 APS-C 12.2 4288 2848720/24p22.712.586872
8.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
9.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
10.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.056156
11.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
12.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
13.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
14.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
15.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
16.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
17.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589

Many modern cameras are not only capable of taking still images, but can also record movies. The A77 indeed provides for movie recording, while the D40X does not. The highest resolution format that the A77 can use is 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A77 has an electronic viewfinder (2359k 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 A77 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 A77 has a higher magnification (0.73x 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 D40X and Sony A77 along with similar information for a selection of comparators.

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Core Features
    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 D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
2.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
3.
 
Canon 450Doptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
4.
 
Canon 400Doptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
5.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
6.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
7.
 
Nikon D5000optical n2.7 / 230 full-flex n 1/4000s 4.0/s Y n
8.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
9.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
10.
 
Nikon D40optical n2.5 / 230 fixed n 1/4000s 2.5/s Y n
11.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
12.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
13.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0/s Y n
14.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
15.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
17.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the A77 and the D40X is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the D40X offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The A77 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the D40X does not have a selfie-screen.

The D40X writes its imaging data to SDHC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. The A77 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), 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 SLT-A77 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D40XY- / ----2.0---
2.
 
Sony A77Ystereo / monoY-mini2.0---
3.
 
Canon 450DY- / ---mini2.0---
4.
 
Canon 400DY- / ----2.0---
5.
 
Nikon D3100Ymono / mono--mini2.0---
6.
 
Nikon D3000Y- / ----2.0---
7.
 
Nikon D5000Ymono / mono--mini2.0---
8.
 
Nikon D60Y- / ----2.0---
9.
 
Nikon D90Ymono / mono--mini2.0---
10.
 
Nikon D40Y- / ----2.0---
11.
 
Olympus E-420Y- / ----2.0---
12.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
13.
 
Panasonic L10Y- / ----2.0---
14.
 
Sony A9Ystereo / monoYYmicro2.0YYY
15.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
17.
 
Sony A99Ystereo / monoYYmini2.0---

Studio photographers will appreciate that the Sony A77 (unlike the D40X) 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 A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the D40X and the A77 have been discontinued, but can regularly be found used on ebay. The D40X was replaced by the Nikon D60 , while the A77 was followed by the Sony A77 II. Further information on the features and operation of the D40X and A77 can be found, respectively, in the Nikon D40X Manual (free pdf) or the online Sony A77 Manual.

Review summary

So how do things add up? Which of the two cameras – the Nikon D40X or the Sony A77 – 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.

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Advantages of the Nikon D40X:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More compact: Is smaller (124x94mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 210g or 29 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (520 versus 470) on a single battery charge.
  • More affordable: Was introduced into a lower priced category (48 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in March 2007).

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Arguments in favor of the Sony Alpha SLT-A77:

  • More detail: Has more megapixels (24 vs 10MP), which boosts linear resolution by 55%.
  • Better image quality: Scores substantially higher (15 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.6 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • 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 (0.73x vs 0.53x).
  • Easier setting verification: Features a control panel on top to check 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 (921k vs 230k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 3 flaps/sec) to capture the decisive moment.
  • 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.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 4 years and 5 months of technical progress since the D40X launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A77 is the clear winner of the contest (22 : 6 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D40X 06:22 A77

How about other alternatives? Do the specifications of the Nikon D40X and the Sony A77 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 incomplete and does no justice, for example, to the way the D40X or the A77 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 why expert reviews are important. 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
2.
 
Sony A775/591/100..81/100..5/5 Aug 2011 1,399ebay.com
3.
 
Canon 450D..+ +..+ +4/54.5/5 Jan 2008 799ebay.com
4.
 
Canon 400D..+ +..+ +o4/5 Aug 2006 799ebay.com
5.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 599ebay.com
6.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
7.
 
Nikon D5000..+ +..75/1004/54.5/5 Apr 2009 749ebay.com
8.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
9.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 1,299ebay.com
10.
 
Nikon D40..81/100..+ +o4.5/5 Nov 2006 499ebay.com
11.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
12.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 1,999ebay.com
13.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 599ebay.com
14.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
15.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
16.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 1,199ebay.com
17.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 2,799ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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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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 D40X vs Sony A77

    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 A77
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Sony A mount lenses
    Launch Date March 2007 August 2011
    Launch Price USD 729 USD 1,399
    Sensor Specs Nikon D40X Sony A77
    Sensor Technology CCD CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.8 mm 23.5 x 15.6 mm
    Sensor Area 372.88 mm2 366.6 mm2
    Sensor Diagonal 28.4 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 10 Megapixels 24 Megapixels
    Image Resolution 3872 x 2592 pixels 6000 x 4000 pixels
    Pixel Pitch 6.11 μm 3.91 μm
    Pixel Density 2.69 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 1,600 ISO 100 - 16,000 ISO
    ISO Boost 100 - 3,200 ISO 50 - 25,600 ISO
    Image Processor EXPEED BIONZ X
    DXO Sensor Quality (score) 63 78
    DXO Color Depth (bits) 22.4 24.0
    DXO Dynamic Range (EV) 11.4 13.2
    DXO Low Light (ISO) 516 801
    Screen Specs Nikon D40X Sony A77
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 230k dots 921k dots
    LCD Attachment Fixed screen Fully flexible screen
    Shooting Specs Nikon D40X Sony A77
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy50 000 actuations150 000 actuations
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDHC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Nikon D40X Sony A77
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D40X Sony A77
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type EN-EL9 NP-FM500H
    Battery Life (CIPA)520 shots per charge470 shots per charge
    Body Dimensions 124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 522 g (18.4 oz) 732 g (25.8 oz)
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