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Nikon D7500 vs Olympus E-3

The Nikon D7500 and the Olympus E-3 are two digital cameras that were officially introduced, respectively, in April 2017 and October 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D7500) and a Four Thirds (E-3) sensor. The Nikon has a resolution of 20.7 megapixels, whereas the Olympus provides 10 MP.

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

Headline Specifications
Nikon D7500
versus
Olympus E-3
Nikon D7500   Olympus E-3
Digital single lens reflex Digital single lens reflex
Nikon F mount lenses Four Thirds lenses
20.7 MP – APS-C sensor 10 MP – Four Thirds sensor
4K/30p Video no Video
ISO 100-51,200 (50 - 164,000) ISO 100-3,200
Optical viewfinder Optical viewfinder
3.2" LCD – 922k dots 2.5" LCD – 230k dots
Tilting touchscreen Swivel screen (not touch-sensitive)
8 shutter flaps per second 5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyWeathersealed body
950 shots per battery charge750 shots per battery charge
136 x 104 x 73 mm, 720 g 142 x 116 x 75 mm, 876 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D7500 and the Olympus E-3? 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 side-by-side display below illustrates the physical size and weight of the Nikon D7500 and the Olympus E-3. 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 Olympus E-3
Compare D7500 versus E-3 top
Comparison D7500 or E-3 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-3 is notably larger (16 percent) than the Nikon D7500. Moreover, the E-3 is markedly heavier (22 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. 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 (D7500) and the Four Thirds Lens Catalog (E-3).

Concerning battery life, the D7500 gets 950 shots out of its Nikon EN-EL15a battery, while the E-3 can take 750 images on a single charge of its Olympus BLM-1 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
  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.
 
Olympus E-3 142 mm 116 mm 75 mm 876 g 750 Y Oct 2007 US$ 1 699ebay.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 D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 US$ 1 999ebay.com
6.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 US$ 1 999ebay.com
7.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 US$ 2 299ebay.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.
 
Olympus E-1 141 mm 104 mm 81 mm 738 g 750 Y Jun 2003 US$ 1 699ebay.com
14.
 
Olympus E-5 142 mm 117 mm 75 mm 873 g 750 Y Sep 2010 US$ 1 699ebay.com
15.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 US$ 1 299ebay.com
16.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 US$ 799ebay.com
17.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 US$ 699ebay.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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The D7500 was launched at a somewhat lower price (by 24 percent) than the E-3, which makes it more attractive for photographers on a tight budget. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Nikon D7500 features an APS-C sensor and the Olympus E-3 a Four Thirds sensor. The sensor area in the E-3 is 39 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 2.0. The sensor in the D7500 has a native 3:2 aspect ratio, while the one in the E-3 offers a 4:3 aspect.

Nikon D7500 and Olympus E-3 sensor measures

With 20.7MP, the D7500 offers a higher resolution than the E-3 (10MP), but the D7500 has smaller individual pixels (pixel pitch of 4.22μm versus 4.74μm for the E-3). However, the D7500 is a much more recent model (by 9 years and 5 months) than the E-3, and its sensor will have benefitted from technological advances during this time that 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 Nikon D7500 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D7500 for good quality output (200 dots per inch) amounts to 27.8 x 18.6 inches or 70.7 x 47.1 cm, for very good quality (250 dpi) 22.3 x 14.8 inches or 56.6 x 37.7 cm, and for excellent quality (300 dpi) 18.6 x 12.4 inches or 47.1 x 31.4 cm. The corresponding values for the Olympus E-3 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 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 Olympus E-3 are ISO 100 to ISO 3200 (no boost).

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 E-3 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 review, the D7500 provides substantially higher image quality than the E-3, with an overall score that is 30 points higher. This advantage is based on 2.7 bits higher color depth, 3.5 EV in additional dynamic range, and 1.4 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
  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.
 
Olympus E-3 Four Thirds 10.0 3648 2736none21.610.557156
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 D500 APS-C 20.7 5568 37124K/30p24.014.0132483
6.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
7.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
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.
 
Olympus E-1 Four Thirds 4.9 2560 1920none20.09.7-14544
14.
 
Olympus E-5 Four Thirds 12.2 4032 3024720/30p21.610.551956
15.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
16.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
17.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The D7500 indeed provides movie recording capabilities, while the E-3 does not. The highest resolution format that the D7500 can use is 4K/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The D7500 and the E-3 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the D7500 has a higher magnification than the one of the E-3 (0.61x vs 0.58x), 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 Olympus E-3 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.
 
Olympus E-3optical Y2.5 / 230 swivel n 1/8000s 5.0/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 D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
6.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
7.
 
Nikon D750optical Y3.2 / 1229 tilting 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.
 
Olympus E-1optical Y1.8 / 134 fixed n 1/4000s 3.0/s n n
14.
 
Olympus E-5optical Y3.0 / 920 swivel n 1/8000s 5.0/s Y Y
15.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0/s Y Y
16.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
17.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/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 E-3 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The E-3 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 E-3 uses Compact Flash or xD Picture cards. The E-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D7500 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 D7500 and Olympus E-3 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.
 
Olympus E-3Y- / ----2.0---
3.
 
Canon 80DYstereo / monoYYmini2.0YY-
4.
 
Nikon D5Ystereo / monoYYmini3.0---
5.
 
Nikon D500Ystereo / monoYYmini3.0YYY
6.
 
Nikon D610Ymono / monoYYmini2.0---
7.
 
Nikon D750Ystereo / monoYYmini2.0Y--
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.
 
Olympus E-1Y- / ----2.0---
14.
 
Olympus E-5Ystereo / ---mini2.0---
15.
 
Olympus E-30Y- / ----2.0---
16.
 
Olympus E-510Y- / ----2.0---
17.
 
Olympus E-520Y- / ----2.0---

It is notable that the D7500 offers wifi support, while the E-3 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Olympus E-3 (unlike the D7500) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The D7500 is a recent model that features in the current product line-up of Nikon. In contrast, the E-3 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-3 was succeeded by the Olympus E-5. Further information on the features and operation of the D7500 and E-3 can be found, respectively, in the Nikon D7500 Manual (free pdf) or the online Olympus E-3 Manual.

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Review summary

So how do things add up? Is the Nikon D7500 better than the Olympus E-3 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Nikon D7500:

  • More detail: Offers more megapixels (20.7 vs 10MP) with a 47% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (30 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.7 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (3.5 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.4 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 4K/30p movies.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.61x vs 0.58x).
  • 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 (922k vs 230k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (8 vs 5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (136x104mm vs 142x116mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 156g or 18 percent) and hence easier to carry around.
  • Longer lasting: Can take more shots (950 versus 750) 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 affordable: Was introduced into a lower priced segment (24 percent cheaper at launch).
  • More modern: Reflects 9 years and 5 months of technical progress since the E-3 launch.

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Reasons to prefer the Olympus E-3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More flexible LCD: Has a swivel 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.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • 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 heavily discounted: Has been around for much longer (launched in October 2007).

If the count of relative strengths (bullet points above) is taken as a measure, the D7500 is the clear winner of the match-up (20 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional 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.

D7500 20:07 E-3

How about other alternatives? Do the specifications of the Nikon D7500 and the Olympus E-3 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 E-3. 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 hands-on reviews by experts 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
  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.
 
Olympus E-3..88/100..+ +o4/5 Oct 2007 US$ 1 699ebay.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 D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 US$ 1 999ebay.com
6.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 US$ 1 999ebay.com
7.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 US$ 2 299ebay.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.
 
Olympus E-1......+o.. Jun 2003 US$ 1 699ebay.com
14.
 
Olympus E-54/5....75/1004/54.5/5 Sep 2010 US$ 1 699ebay.com
15.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 US$ 1 299ebay.com
16.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 US$ 799ebay.com
17.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Nikon D7500 vs Olympus E-3

    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 Olympus E-3
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Four Thirds lenses
    Launch Date April 2017 October 2007
    Launch Price USD 1,299 USD 1,699
    Sensor Specs Nikon D7500 Olympus E-3
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 23.5 x 15.7 mm 17.3 x 13.0 mm
    Sensor Area 368.95 mm2 224.9 mm2
    Sensor Diagonal 28.3 mm 21.6 mm
    Crop Factor 1.5x 2.0x
    Sensor Resolution 20.7 Megapixels 10 Megapixels
    Image Resolution 5568 x 3712 pixels 3648 x 2736 pixels
    Pixel Pitch 4.22 μm 4.74 μm
    Pixel Density 5.60 MP/cm2 4.44 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video no Video
    ISO Setting 100 - 51,200 ISO 100 - 3,200 ISO
    ISO Boost 50 - 164,000 ISO no Enhancement
    Image Processor EXPEED 5 TruePic III
    DXO Sensor Quality (score) 86 56
    DXO Color Depth (bits) 24.3 21.6
    DXO Dynamic Range (EV) 14.0 10.5
    DXO Low Light (ISO) 1483 571
    Screen Specs Nikon D7500 Olympus E-3
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.61x 0.58x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 2.5inch
    LCD Resolution 922k dots 230k dots
    LCD Attachment Tilting screen Swivel screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D7500 Olympus E-3
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 8 shutter flaps/s 5 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 CF or XD cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Nikon D7500 Olympus E-3
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Nikon D7500 Olympus E-3
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Nikon EN-EL15a Olympus BLM-1
    Battery Life (CIPA)950 shots per charge750 shots per charge
    Body Dimensions 136 x 104 x 73 mm
    (5.4 x 4.1 x 2.9 in)
    142 x 116 x 75 mm
    (5.6 x 4.6 x 3.0 in)
    Camera Weight 720 g (25.4 oz) 876 g (30.9 oz)
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