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Nikon D7500 vs Olympus E-520

The Nikon D7500 and the Olympus E-520 are two digital cameras that were revealed to the public, respectively, in April 2017 and May 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D7500) and a Four Thirds (E-520) 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   VS Olympus E-520
Nikon D7500 Olympus E-520
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 100-51200 (50-1640000) ISO 100-1600
Optical viewfinder Optical viewfinder
3.2" LCD, 922k dots 2.7" LCD, 215k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
8 shutter flaps per second 3.5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
Weathersealed bodyNot weather sealed
950 shots per battery charge750 shots per battery charge
136 x 104 x 73 mm, 720 g 136 x 92 x 68 mm, 535 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D7500 and the Olympus E-520? 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 physical size and weight of the Nikon D7500 and the Olympus E-520 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Nikon D7500 vs Olympus E-520
Compare D7500 versus E-520 top
Comparison D7500 or E-520 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-520 is notably smaller (12 percent) than the Nikon D7500. Moreover, the E-520 is markedly lighter (26 percent) than the D7500. It is worth mentioning in this context that the D7500 is splash and dust resistant, while the E-520 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 (D7500) and the Four Thirds Lens Catalog (E-520).

Concerning battery life, the D7500 gets 950 shots out of its EN-EL15a battery, while the E-520 can take 750 images on a single charge of its BLM-1 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Nikon D7500» 5.4 in 4.1 in 2.9 in 25.4 oz 950 Y Apr 2017 1,299 iNikon D7500
 
Olympus E-520« 5.4 in 3.6 in 2.7 in 18.9 oz 750 n May 2008 699iOlympus E-520
 
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199iCanon 80D
 
Nikon D5600« » 4.9 in 3.8 in 2.8 in 16.4 oz 970 n Nov 2016 699 iNikon D5600
 
Nikon D5« » 6.3 in 6.3 in 3.6 in 49.9 oz 3780 Y Jan 2016 6,499iNikon D5
 
Nikon D500« » 5.8 in 4.5 in 3.2 in 30.3 oz 1240 Y Jan 2016 1,999 iNikon D500
 
Nikon D3400« » 4.9 in 3.9 in 3.0 in 15.7 oz 1200 n Aug 2016 499iNikon D3400
 
Nikon D7200« » 5.4 in 4.2 in 3.0 in 27.0 oz 1110 Y Mar 2015 1,199iNikon D7200
 
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199iNikon D7100
 
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 iNikon D610
 
Nikon D7000« » 5.2 in 4.1 in 3.0 in 27.5 oz 1050 Y Sep 2010 1,499iNikon D7000
 
Nikon D90« » 5.2 in 4.1 in 3.0 in 24.8 oz 850 n Aug 2008 1,299iNikon D90
 
Olympus E-600« » 5.1 in 3.7 in 2.4 in 18.9 oz 500 n Aug 2009 449iOlympus E-600
 
Olympus E-620« » 5.1 in 3.7 in 2.4 in 18.4 oz 500 n Feb 2009 699iOlympus E-620
 
Olympus E-420« » 5.1 in 3.6 in 2.1 in 15.5 oz 500 n Mar 2008 599iOlympus E-420
 
Olympus E-410« » 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Mar 2007 699iOlympus E-410
 
Olympus E-510« » 5.4 in 3.6 in 2.7 in 19.0 oz 750 n Mar 2007 799iOlympus E-510
Note: Measurements and pricing do not include easily detachable parts, such as 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 E-520 was launched at a markedly lower price (by 46 percent) than the D7500, 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. 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. 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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.

Of the two cameras under consideration, the Nikon D7500 features an APS-C sensor and the Olympus E-520 a Four Thirds sensor. The sensor area in the E-520 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-520 offers a 4:3 aspect.

Nikon D7500 and Olympus E-520 sensor measures

With 20.7MP, the D7500 offers a higher resolution than the E-520 (10MP), but the D7500 has smaller individual pixels (pixel pitch of 4.22μm versus 4.74μm for the E-520). However, the D7500 is a much more recent model (by 8 years and 11 months) than the E-520, 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 inch or 70.7 x 47.1 cm, for very good quality (250 dpi) 22.3 x 14.8 inch or 56.6 x 37.7 cm, and for excellent quality (300 dpi) 18.6 x 12.4 inch or 47.1 x 31.4 cm. The corresponding values for the Olympus E-520 are 18.2 x 13.7 inch or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inch or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inch 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 50-1640000. The corresponding ISO settings for the Olympus E-520 are ISO 100 to ISO 1600 (no boost).

D7500 versus E-520 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 provides substantially higher image quality than the E-520, with an overall score that is 31 points higher. This advantage is based on 2.9 bits higher color depth, 3.6 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386Nikon D7500
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855Olympus E-520
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579Canon 80D
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684Nikon D5600
 
Nikon D5 Full Frame 20.7 5588 37124K/30p25.112.3234388Nikon D5
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
 
Nikon D3400 APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387Nikon D7200
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683Nikon D7100
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610
 
Nikon D7000 APS-C 16.1 4928 326410800/24p23.513.9116780Nikon D7000
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773Nikon D90
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155Olympus E-600
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655Olympus E-620
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756Olympus E-420
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451Olympus E-410
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252Olympus E-510

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-520 does not. The highest resolution format that the D7500 can use is 4K/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The D7500 and the E-520 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 viewfinder in the D7500 offers a wider field of view (100%) than the one in the E-520 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the D7500 has a higher magnification (0.61x vs 0.46x), 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 D7500, the Olympus E-520, and comparable cameras.

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
Camera
Model
 
Nikon D7500optical Y 3.2 922 tilting Y 1/8000s 8.0 Y n Nikon D7500
 
Olympus E-520optical n 2.7 215 fixed n 1/4000s 3.5 Y Y Olympus E-520
 
Canon 80Doptical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n Canon 80D
 
Nikon D5600optical n 3.2 1037 swivel Y 1/4000s 5.0 Y n Nikon D5600
 
Nikon D5optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D5
 
Nikon D500optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n Nikon D500
 
Nikon D3400optical n 3.0 921 fixed n 1/4000s 5.0 Y n Nikon D3400
 
Nikon D7200optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n Nikon D7200
 
Nikon D7100optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n Nikon D7100
 
Nikon D610optical Y 3.2 921 fixed n 1/4000s 6.0 Y n Nikon D610
 
Nikon D7000optical Y 3.0 921 fixed n 1/8000s 6.0 Y n Nikon D7000
 
Nikon D90optical Y 3.0 920 fixed n 1/4000s 4.5 Y n Nikon D90
 
Olympus E-600optical n 2.7 230 swivel n 1/4000s 4.0 Y Y Olympus E-600
 
Olympus E-620optical n 2.7 230 swivel n 1/4000s 4.0 Y Y Olympus E-620
 
Olympus E-420optical n 2.7 215 fixed n 1/4000s 3.5 Y n Olympus E-420
 
Olympus E-410optical n 2.5 215 fixed n 1/4000s 3.0 Y n Olympus E-410
 
Olympus E-510optical n 2.5 215 fixed n 1/4000s 3.0 Y Y Olympus E-510

One feature that is present on the D7500, but is missing on the E-520 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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-520 uses Compact Flash or xD Picture cards. The E-520 features dual card slots, which can be very useful in case a memory card fails. In contrast, the D7500 only has one slot.

 

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-520 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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
Camera
Model
 
Nikon D7500YstereomonoYYmini2.0Y-YNikon D7500
 
Olympus E-520Ynonenone--none2.0---Olympus E-520
 
Canon 80DYstereomonoYYmini2.0YY-Canon 80D
 
Nikon D5600YstereomonoY-mini2.0YYYNikon D5600
 
Nikon D5YstereomonoYYmini3.0---Nikon D5
 
Nikon D500YstereomonoYYmini3.0YYYNikon D500
 
Nikon D3400Ymonomono--mini2.0--YNikon D3400
 
Nikon D7200YstereomonoYYmini2.0YY-Nikon D7200
 
Nikon D7100YstereomonoYYmini2.0---Nikon D7100
 
Nikon D610YmonomonoYYmini2.0---Nikon D610
 
Nikon D7000YmonomonoY-mini2.0---Nikon D7000
 
Nikon D90Ymonomono--mini2.0---Nikon D90
 
Olympus E-600Ynonenone--none2.0---Olympus E-600
 
Olympus E-620Ynonenone--none2.0---Olympus E-620
 
Olympus E-420Ynonenone--none2.0---Olympus E-420
 
Olympus E-410Ynonenone--none2.0---Olympus E-410
 
Olympus E-510Ynonenone--none2.0---Olympus E-510

It is notable that the D7500 offers wifi support, while the E-520 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The D7500 is a recent model that features in the current product line-up of Nikon. In contrast, the E-520 has been discontinued (but it can be found pre-owned on eBay). There has not been a direct replacement model for the E-520 from Olympus. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Olympus websites.

Review summary

So how do things add up? Which of the two cameras – the Nikon D7500 or the Olympus E-520 – 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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Arguments in favor 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 (31 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.9 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (3.6 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.
  • 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 (0.61x vs 0.46x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 215k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (8 vs 3.5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (950 versus 750) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • 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 8 years and 11 months of technical progress since the E-520 launch.

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Reasons to prefer the Olympus E-520:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (136x92mm vs 136x104mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 185g or 26 percent) and is thus easier to take along.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in May 2008).

If the count of individual advantages (bullet points above) is taken as a guide, the D7500 is the clear winner of the match-up (22 : 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 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 22:07 E-520

How about other alternatives? Do the specifications of the Nikon D7500 and the Olympus E-520 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D7500 or the E-520. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Nikon D7500+ +86/1005/54.5/54.5/5 Apr 2017 1,299 iNikon D7500
 
Olympus E-52087/100+ +4.5/54/54.5/5 May 2008 699iOlympus E-520
 
Canon 80D+ +84/1004.5/54.5/54.5/5 Feb 2016 1,199iCanon 80D
 
Nikon D5600..79/1004.5/54.5/54/5 Nov 2016 699 iNikon D5600
 
Nikon D5..89/1004.5/55/55/5 Jan 2016 6,499iNikon D5
 
Nikon D500+ +91/1004.5/55/55/5 Jan 2016 1,999 iNikon D500
 
Nikon D3400+76/1004/54.5/54.5/5 Aug 2016 499iNikon D3400
 
Nikon D7200+ +84/1004.5/54/54.5/5 Mar 2015 1,199iNikon D7200
 
Nikon D7100+ +85/1004.5/55/54.5/5 Feb 2013 1,199iNikon D7100
 
Nikon D610+ +87/1004.5/54.5/54.5/5 Oct 2013 1,999 iNikon D610
 
Nikon D7000..80/1004.5/55/54.5/5 Sep 2010 1,499iNikon D7000
 
Nikon D90+ ++ +4/55/54.5/5 Aug 2008 1,299iNikon D90
 
Olympus E-600........4.5/5 Aug 2009 449iOlympus E-600
 
Olympus E-62088/10072/1004.5/5o5/5 Feb 2009 699iOlympus E-620
 
Olympus E-42085/100+ +4/5o4.5/5 Mar 2008 599iOlympus E-420
 
Olympus E-41086/100+ +4/5o4.5/5 Mar 2007 699iOlympus E-410
 
Olympus E-51089/100+ +3.5/5o4.5/5 Mar 2007 799iOlympus E-510
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

Nikon D7500:
Check Amazon price
Olympus E-520:
Check Ebay offers

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 your choice using the following search menu. 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 Olympus E-520

    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-520
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Nikon F mount lenses Four Thirds lenses
    Launch Date April 2017 May 2008
    Launch Price USD 1299 USD 699
    Sensor Specs Nikon D7500 Olympus E-520
    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 100-51200 ISO 100-1600 ISO
    ISO Boost 50-1640000 ISO no Enhancement
    Image Processor EXPEED 5 TruePic III
    DXO Sensor Quality (score) 86 55
    DXO Color Depth (bits) 24.3 21.4
    DXO Dynamic Range (EV) 14.0 10.4
    DXO Low Light (ISO) 1483 548
    Screen Specs Nikon D7500 Olympus E-520
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.61x 0.46x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 2.7 inch
    LCD Resolution 922k dots 215k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Nikon D7500 Olympus E-520
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 8 shutter flaps/s 3.5 shutter flaps/s
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards CF or XD cards
    Second Storage Option Single card slot Dual card slots
    Connectivity Specs Nikon D7500 Olympus E-520
    External Flash Hotshoe Hotshoe
    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-520
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type EN-EL15a 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)
    136 x 92 x 68 mm
    (5.4 x 3.6 x 2.7 in)
    Camera Weight 720 g (25.4 oz) 535 g (18.9 oz)

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