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Olympus E-P1 vs Nikon D7500

The Olympus PEN E-P1 and the Nikon D7500 are two enthusiast cameras that were announced, respectively, in June 2009 and April 2017. The E-P1 is a mirrorless interchangeable lens camera, while the D7500 is a DSLR. The cameras are based on a Four Thirds (E-P1) and an APS-C (D7500) sensor. The Olympus has a resolution of 12.2 megapixels, whereas the Nikon provides 20.7 MP.

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

Headline Specifications
Olympus E-P1
versus
Nikon D7500
Olympus E-P1   Nikon D7500
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Nikon F mount lenses
12.2 MP – Four Thirds sensor 20.7 MP – APS-C sensor
720/30p Video 4K/30p Video
ISO 100-6,400 ISO 100-51,200 (50 - 164,000)
No viewfinder, LCD framing Optical viewfinder
3.0" LCD – 230k dots 3.2" LCD – 922k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 8 shutter flaps per second
In-body stabilizationLens stabilization only
not weather sealedWeathersealed body
300 shots per battery charge950 shots per battery charge
121 x 70 x 36 mm, 355 g 136 x 104 x 73 mm, 720 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus PEN E-P1 and the Nikon D7500? 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 Olympus E-P1 and the Nikon D7500. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The E-P1 can be obtained in three different colors (black, silver, white), while the D7500 is only available in black.

Size Olympus E-P1 vs Nikon D7500
Compare E-P1 versus D7500 top
Comparison E-P1 or D7500 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D7500 is considerably larger (67 percent) than the Olympus E-P1. Moreover, the D7500 is substantially heavier (103 percent) than the E-P1. It is noteworthy in this context that the D7500 is splash and dust-proof, while the E-P1 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 Micro Four Thirds Lens Catalog (E-P1) and the Nikon Lens Catalog (D7500). Mirrorless cameras, such as the Olympus E-P1, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the E-P1 gets 300 shots out of its Olympus BLS-1 battery, while the D7500 can take 950 images on a single charge of its Nikon EN-EL15a 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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-P1 121 mm 70 mm 36 mm 355 g 300 n Jun 2009 799ebay.com
2.
 
Nikon D7500 136 mm 104 mm 73 mm 720 g 950 Y Apr 2017 1,299 amazon.com
3.
 
Canon 80D 139 mm 105 mm 79 mm 730 g 960 Y Feb 2016 1,199ebay.com
4.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999ebay.com
5.
 
Nikon D7200 136 mm 107 mm 76 mm 765 g 1110 Y Mar 2015 1,199ebay.com
6.
 
Nikon D7100 136 mm 107 mm 76 mm 765 g 950 Y Feb 2013 1,199ebay.com
7.
 
Nikon D7000 132 mm 105 mm 77 mm 780 g 1050 Y Sep 2010 1,499ebay.com
8.
 
Olympus E-P3 122 mm 69 mm 34 mm 369 g 330 n Jun 2011 799ebay.com
9.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599ebay.com
10.
 
Olympus E-PL3 110 mm 64 mm 37 mm 313 g 300 n Jun 2011 599ebay.com
11.
 
Olympus E-PL1 115 mm 72 mm 42 mm 334 g 290 n Feb 2010 599ebay.com
12.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
13.
 
Olympus E-P2 121 mm 70 mm 36 mm 355 g 300 n Nov 2009 799ebay.com
14.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
15.
 
Panasonic G10 124 mm 84 mm 74 mm 388 g 380 n Mar 2010 499ebay.com
16.
 
Panasonic GF1 119 mm 71 mm 36 mm 385 g 380 n Sep 2009 749ebay.com
17.
 
Panasonic GH1 124 mm 90 mm 45 mm 385 g 300 n Mar 2009 899ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will obviously take relative prices into account. 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 E-P1 was launched at a markedly lower price (by 38 percent) than the D7500, 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Olympus E-P1 features a Four Thirds sensor and the Nikon D7500 an APS-C sensor. The sensor area in the D7500 is 64 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.5. The sensor in the E-P1 has a native 4:3 aspect ratio, while the one in the D7500 offers a 3:2 aspect.

Olympus E-P1 and Nikon D7500 sensor measures

With 20.7MP, the D7500 offers a higher resolution than the E-P1 (12.2MP), but the D7500 has marginally smaller individual pixels (pixel pitch of 4.22μm versus 4.29μm for the E-P1). Yet, the D7500 is a much more recent model (by 7 years and 9 months) than the E-P1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 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-P1 are 20.2 x 15.1 inches or 51.2 x 38.4 cm for good quality, 16.1 x 12.1 inches or 41 x 30.7 cm for very good quality, and 13.4 x 10.1 inches or 34.1 x 25.6 cm for excellent quality prints.

The Olympus PEN E-P1 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Nikon D7500 are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-164000.

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.

E-P1 versus D7500 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 consideration, the D7500 offers substantially better image quality than the E-P1 (overall score 31 points higher). The advantage is based on 2.9 bits higher color depth, 3.6 EV in additional dynamic range, and 1.5 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-P1 Four Thirds 12.2 4032 3024720/30p21.410.453655
2.
 
Nikon D7500 APS-C 20.7 5568 37124K/30p24.314.0148386
3.
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
4.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
5.
 
Nikon D7200 APS-C 24.0 6000 40001080/60p24.514.6133387
6.
 
Nikon D7100 APS-C 24.0 6000 40001080/60p24.213.7125683
7.
 
Nikon D7000 APS-C 16.1 4928 32641080/24p23.513.9116780
8.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
9.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
10.
 
Olympus E-PL3 Four Thirds 12.2 4032 30241080/60i20.910.349952
11.
 
Olympus E-PL1 Four Thirds 12.2 4032 3024720/30p21.510.148754
12.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
13.
 
Olympus E-P2 Four Thirds 12.2 4032 3024720/30p21.510.450556
14.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
15.
 
Panasonic G10 Four Thirds 12.0 4000 3000720/30p21.210.141152
16.
 
Panasonic GF1 Four Thirds 12.0 4000 3000720/30p21.210.351354
17.
 
Panasonic GH1 Four Thirds 12.0 4000 30001080/24p21.611.677264
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Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the D7500 provides a better video resolution than the E-P1. It can shoot movie footage at 4K/30p, while the Olympus is limited to 720/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the D7500 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-P1 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Olympus E-P1, the Nikon D7500, and comparable cameras.

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Core Features
# image 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.
 
Olympus E-P1none n3.0 / 230 fixed n 1/4000s 3.0/s n Y
2.
 
Nikon D7500optical Y3.2 / 922 tilting Y 1/8000s 8.0/s Y n
3.
 
Canon 80Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0/s Y n
4.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
5.
 
Nikon D7200optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
6.
 
Nikon D7100optical Y3.2 / 1229 fixed n 1/8000s 6.0/s Y n
7.
 
Nikon D7000optical Y3.0 / 921 fixed n 1/8000s 6.0/s Y n
8.
 
Olympus E-P3optional n3.0 / 614 fixed Y 1/4000s 3.0/s Y Y
9.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
10.
 
Olympus E-PL3optional n3.0 / 460 tilting n 1/4000s 5.5/s n Y
11.
 
Olympus E-PL1optional n2.7 / 230 fixed n 1/2000s 3.0/s Y Y
12.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
13.
 
Olympus E-P2optional n3.0 / 230 fixed n 1/4000s 3.0/s n Y
14.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
15.
 
Panasonic G10202 n3.0 / 460 fixed n 1/4000s 2.6/s Y n
16.
 
Panasonic GF1optional n3.0 / 460 fixed n 1/4000s 3.0/s Y n
17.
 
Panasonic GH11440 n3.0 / 460 swivel n 1/4000s 3.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that differentiates the E-P1 and the D7500 is in-body image stabilization (IBIS). The E-P1 reduces the risk of handshake-induced blur with all attached lenses, while the D7500 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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 E-P1 writes its imaging data to SDHC cards, while the D7500 uses SDXC cards. The D7500 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the E-P1 cannot take advantage of Ultra High Speed SD cards.

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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 Olympus PEN E-P1 and Nikon D7500 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-P1Ystereo / ---mini2.0---
2.
 
Nikon D7500Ystereo / monoYYmini2.0Y-Y
3.
 
Canon 80DYstereo / monoYYmini2.0YY-
4.
 
Nikon D500Ystereo / monoYYmini3.0YYY
5.
 
Nikon D7200Ystereo / monoYYmini2.0YY-
6.
 
Nikon D7100Ystereo / monoYYmini2.0---
7.
 
Nikon D7000Ymono / monoY-mini2.0---
8.
 
Olympus E-P3Ystereo / ---mini2.0---
9.
 
Olympus E-PL2Ystereo / ---mini2.0---
10.
 
Olympus E-PL3Ystereo / ---mini2.0---
11.
 
Olympus E-PL1Ystereo / ---mini2.0---
12.
 
Olympus E-620Y- / ----2.0---
13.
 
Olympus E-P2Ystereo / ---mini2.0---
14.
 
Olympus E-520Y- / ----2.0---
15.
 
Panasonic G10Ymono / ---mini2.0---
16.
 
Panasonic GF1Ymono / mono--mini2.0---
17.
 
Panasonic GH1Ystereo / -Y-mini2.0---
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It is notable that the D7500 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-P1 does not provide wifi capability.

The D7500 is a recent model that features in the current product line-up of Nikon. In contrast, the E-P1 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-P1 was succeeded by the Olympus E-P2. Further information on the features and operation of the E-P1 and D7500 can be found, respectively, in the Olympus E-P1 Manual (free pdf) or the online Nikon D7500 Manual.

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Review summary

So how do things add up? Is the Olympus E-P1 better than the Nikon D7500 or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Olympus PEN E-P1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More compact: Is smaller (121x70mm vs 136x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 365g or 51 percent) and hence easier to carry around.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in June 2009).

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Reasons to prefer the Nikon D7500:

  • More detail: Has more megapixels (20.7 vs 12.2MP), which boosts linear resolution by 33%.
  • 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 evaluation.
  • Richer colors: Generates noticeably more natural colors (2.9 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.6 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.5 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 720/30p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (8 vs 3 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (950 versus 300) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • 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.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 7 years and 9 months of technical progress since the E-P1 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the D7500 is the clear winner of the contest (25 : 7 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 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.

E-P1 07:25 D7500

How about other alternatives? Do the specifications of the Olympus E-P1 and the Nikon D7500 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings 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 says little about, for example, the shooting experience and imaging performance of the E-P1 and the D7500 in practical situations. 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
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-P1..+..66/1004/54.5/5 Jun 2009 799ebay.com
2.
 
Nikon D75004.5/5+ +4.5/586/1005/54.5/5 Apr 2017 1,299 amazon.com
3.
 
Canon 80D4/5+ +4.5/584/1004.5/54.5/5 Feb 2016 1,199ebay.com
4.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 1,999ebay.com
5.
 
Nikon D72004/5+ +..84/1004.5/54.5/5 Mar 2015 1,199ebay.com
6.
 
Nikon D71005/5+ +..85/1004.5/54.5/5 Feb 2013 1,199ebay.com
7.
 
Nikon D70004/5....80/1004.5/54.5/5 Sep 2010 1,499ebay.com
8.
 
Olympus E-P3..83/100..74/1004.5/54.5/5 Jun 2011 799ebay.com
9.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 599ebay.com
10.
 
Olympus E-PL33/5+ +..72/1004.5/54/5 Jun 2011 599ebay.com
11.
 
Olympus E-PL1..86/100..69/1004/54.5/5 Feb 2010 599ebay.com
12.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
13.
 
Olympus E-P23/5+..69/1004/54.5/5 Nov 2009 799ebay.com
14.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
15.
 
Panasonic G103/5....70/1004/54/5 Mar 2010 499ebay.com
16.
 
Panasonic GF1..85/100..69/1004.5/54.5/5 Sep 2009 749ebay.com
17.
 
Panasonic GH1..+ +..72/1004.5/54.5/5 Mar 2009 899ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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The above review scores should be interpreted with care, 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 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.

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Check E-P1 offers at
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Check D7500 price at
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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: Olympus E-P1 vs Nikon D7500

    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 Olympus E-P1 Nikon D7500
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Nikon F mount lenses
    Launch Date June 2009 April 2017
    Launch Price USD 799 USD 1,299
    Sensor Specs Olympus E-P1 Nikon D7500
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.7 mm
    Sensor Area 224.9 mm2 368.95 mm2
    Sensor Diagonal 21.6 mm 28.3 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 12.2 Megapixels 20.7 Megapixels
    Image Resolution 4032 x 3024 pixels 5568 x 3712 pixels
    Pixel Pitch 4.29 μm 4.22 μm
    Pixel Density 5.42 MP/cm2 5.60 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 720/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 164,000 ISO
    Image Processor TruePic V EXPEED 5
    DXO Sensor Quality (score) 55 86
    DXO Color Depth (bits) 21.4 24.3
    DXO Dynamic Range (EV) 10.4 14.0
    DXO Low Light (ISO) 536 1483
    Screen Specs Olympus E-P1 Nikon D7500
    Viewfinder Type no viewfinder Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.61x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 230k dots 922k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-P1 Nikon D7500
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 3 shutter flaps/s 8 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDHC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Olympus E-P1 Nikon D7500
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-P1 Nikon D7500
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Olympus BLS-1 Nikon EN-EL15a
    Battery Life (CIPA)300 shots per charge950 shots per charge
    Body Dimensions 121 x 70 x 36 mm
    (4.8 x 2.8 x 1.4 in)
    136 x 104 x 73 mm
    (5.4 x 4.1 x 2.9 in)
    Camera Weight 355 g (12.5 oz) 720 g (25.4 oz)
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