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Nikon D7500 vs Sony A77

The Nikon D7500 and the Sony Alpha SLT-A77 are two enthusiast cameras that were officially introduced, respectively, in April 2017 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 20.7 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 D7500
versus
Sony A77
Nikon D7500   Sony A77
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Sony A mount lenses
20.7 MP – APS-C sensor 24 MP – APS-C sensor
4K/30p Video 1080/60p Video
ISO 100-51,200 (50 - 164,000) ISO 100-16,000 (50 - 25,600)
Optical viewfinder Electronic viewfinder (2359k dots)
3.2" LCD – 922k dots 3.0" LCD – 921k dots
Tilting touchscreen Fully flexible screen (no touchscreen)
8 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
950 shots per battery charge470 shots per battery charge
136 x 104 x 73 mm, 720 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 D7500 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.

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Body comparison

The physical size and weight of the Nikon D7500 and the Sony A77 are illustrated in the side-by-side display below. 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 size dimensions are rounded to the nearest millimeter.

Size Nikon D7500 vs Sony A77
Compare D7500 versus A77 top
Comparison D7500 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 (5 percent) than the Nikon D7500. Moreover, the A77 is slightly heavier (2 percent) than the D7500. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 D7500 gets 950 shots out of its Nikon EN-EL15a battery, while the A77 can take 470 images on a single charge of its Sony NP-FM500H power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 US$ 1 299 amazon.com
2.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 US$ 1 399ebay.com
3.
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 US$ 1 199ebay.com
4.
 
Nikon D5 160 mm 159 mm 92 mm 1415 g 3780 Y Jan 2016 US$ 6 499ebay.com
5.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 US$ 1 299ebay.com
6.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 US$ 1 999ebay.com
7.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 US$ 1 999ebay.com
8.
 
Nikon D3400 124 mm 98 mm 76 mm 445 g 1200 n Aug 2016 US$ 499ebay.com
9.
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 US$ 699ebay.com
10.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 US$ 1 499ebay.com
11.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 US$ 1 199ebay.com
12.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 US$ 1 199ebay.com
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 US$ 1 299ebay.com
14.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 US$ 1 999ebay.com
15.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 US$ 1 199ebay.com
16.
 
Sony A99 147 mm 111 mm 78 mm 812 g 500 Y Sep 2012 US$ 2 799ebay.com
17.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 US$ 1 399ebay.com
Note: 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 D7500 was somewhat cheaper (by 7 percent) than the A77 at launch, but both cameras fall into the same price category. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. 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. 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 are more costly to manufacture and tend to 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 A77 is 1 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 D7500 and Sony A77 sensor measures

Despite having a slightly smaller sensor, the A77 offers a higher resolution of 24 megapixels, compared with 20.7 MP of the D7500. 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 4.22μm for the D7500). Moreover, it should be noted that the D7500 is much more recent (by 5 years and 7 months) than the A77, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the D7500 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

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 D7500 are 27.8 x 18.6 inches or 70.7 x 47.1 cm for good quality, 22.3 x 14.8 inches or 56.6 x 37.7 cm for very good quality, and 18.6 x 12.4 inches or 47.1 x 31.4 cm for excellent quality prints.

The Nikon D7500 has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-164000. 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.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

D7500 versus A77 MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under review, the D7500 has a notably higher overall DXO score than the A77 (overall score 8 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.3 bits higher color depth, 0.8 EV in additional dynamic range, and 0.9 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
2.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
3.
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
4.
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388
5.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
6.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
7.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
8.
 
Nikon D3400 APS-C 24.0 6000 40001080/60p24.813.9119286
9.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
10.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
11.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
12.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
14.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
15.
 
Sony A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
16.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
17.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the D7500 provides a higher video resolution than the A77. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 has an electronic viewfinder (2359k dots), while the D7500 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A77 has a higher magnification than the one of the D7500 (0.73x vs 0.61x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Nikon D7500 and Sony A77 in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
2.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
3.
 
Canon 80Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
4.
 
Nikon D5optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
5.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5/s Y n
6.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
7.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
8.
 
Nikon D3400optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
9.
 
Nikon D5600optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
10.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
11.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
12.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
13.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
14.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
16.
 
Sony A992359 Y3.0 / 1229 full-flex n 1/8000s 6.0/s n Y
17.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The D7500 has a touchscreen, while the A77 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 D7500 does not have a selfie-screen.

The Nikon D7500 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 D7500 writes its imaging data to SDXC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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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 D7500 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
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
2.
 
Sony A77Ystereo / monoY-mini2.0---
3.
 
Canon 80DYstereo / monoYYmini2.0YY-
4.
 
Nikon D5Ystereo / monoYYmini3.0---
5.
 
Nikon D90Ymono / mono--mini2.0---
6.
 
Nikon D500Ystereo / monoYYmini3.0YYY
7.
 
Nikon D610Ymono / monoYYmini2.0---
8.
 
Nikon D3400Ymono / mono--mini2.0--Y
9.
 
Nikon D5600Ystereo / monoY-mini2.0YYY
10.
 
Nikon D7000Ymono / monoY-mini2.0---
11.
 
Nikon D7100Ystereo / monoYYmini2.0---
12.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
13.
 
Pentax K-3Ymono / monoYYmini3.0---
14.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
16.
 
Sony A99Ystereo / monoYYmini2.0---
17.
 
Sony A6500Ystereo / monoY-micro2.0YY-

It is notable that the D7500 has a headphone jack, which is not present on the A77 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Sony A77 (unlike the D7500) 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.

The D7500 is a recent model that features in the current product line-up of Nikon. In contrast, the A77 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A77 was succeeded by the Sony A77 II. Further information on the features and operation of the D7500 and A77 can be found, respectively, in the Nikon D7500 Manual (free pdf) or the online Sony A77 Manual.

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Review summary

So how do things add up? Is the Nikon D7500 better than the Sony A77 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Nikon D7500:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores markedly higher (8 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.8 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.9 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (950 versus 470) on a single battery charge.
  • 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.
  • More modern: Reflects 5 years and 7 months of technical progress since the A77 launch.

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Arguments in favor of the Sony Alpha SLT-A77:

  • More detail: Has more megapixels (24 vs 20.7MP), which boosts linear resolution by 8%.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.61x).
  • 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 burst: Shoots at higher frequency (12 vs 8 flaps/sec) to capture the decisive moment.
  • 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.
  • More heavily discounted: Has been around for much longer (launched in August 2011).

If the number of relative strengths (bullet points above) is taken as a guide, the D7500 emerges as the winner of the contest (14 : 11 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

D7500 14:11 A77

How about other alternatives? Do the specifications of the Nikon D7500 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D7500 or the A77. 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 following table reports the overall ratings of the cameras as published by some of the major 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 US$ 1 299 amazon.com
2.
 
Sony A775/591/100..81/100..5/5 Aug 2011 US$ 1 399ebay.com
3.
 
Canon 80D4/5+ +4.5/584/1004.5/54.5/5 Feb 2016 US$ 1 199ebay.com
4.
 
Nikon D5....4/589/1004.5/55/5 Jan 2016 US$ 6 499ebay.com
5.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 US$ 1 299ebay.com
6.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 US$ 1 999ebay.com
7.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 US$ 1 999ebay.com
8.
 
Nikon D34004/5+4/576/1004/54.5/5 Aug 2016 US$ 499ebay.com
9.
 
Nikon D56004/5..4/579/1004.5/54/5 Nov 2016 US$ 699ebay.com
10.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 US$ 1 499ebay.com
11.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 US$ 1 199ebay.com
12.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 US$ 1 199ebay.com
13.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 US$ 1 299ebay.com
14.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 US$ 1 999ebay.com
15.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 US$ 1 199ebay.com
16.
 
Sony A995/5....84/1004.5/54.5/5 Sep 2012 US$ 2 799ebay.com
17.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 US$ 1 399ebay.com
Note: (+ +) 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. Thus, a score needs to be put into the context of the launch date and the launch price 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu 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 D7500 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 D7500 Sony A77
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Sony A mount lenses
    Launch Date April 2017 August 2011
    Launch Price USD 1,299 USD 1,399
    Sensor Specs Nikon D7500 Sony A77
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.5 x 15.7 mm 23.5 x 15.6 mm
    Sensor Area 368.95 mm2 366.6 mm2
    Sensor Diagonal 28.3 mm 28.2 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 20.7 Megapixels 24 Megapixels
    Image Resolution 5568 x 3712 pixels 6000 x 4000 pixels
    Pixel Pitch 4.22 μm 3.91 μm
    Pixel Density 5.60 MP/cm2 6.55 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 100 - 51,200 ISO 100 - 16,000 ISO
    ISO Boost 50 - 164,000 ISO 50 - 25,600 ISO
    Image Processor EXPEED 5 BIONZ X
    DXO Sensor Quality (score) 86 78
    DXO Color Depth (bits) 24.3 24.0
    DXO Dynamic Range (EV) 14.0 13.2
    DXO Low Light (ISO) 1483 801
    Screen Specs Nikon D7500 Sony A77
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.61x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 922k dots 921k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D7500 Sony A77
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 8 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy150 000 actuations150 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Nikon D7500 Sony A77
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Geotagging no internal GPS GPS built-in
    Body Specs Nikon D7500 Sony A77
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL15a Sony NP-FM500H
    Battery Life (CIPA)950 shots per charge470 shots per charge
    Body Dimensions 136 x 104 x 73 mm
    (5.4 x 4.1 x 2.9 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 720 g (25.4 oz) 732 g (25.8 oz)
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    Check D7500 price at
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    Check A77 offers at
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