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Olympus E-M10 II vs Nikon D40

The Olympus OM-D E-M10 Mark II and the Nikon D40 are two digital cameras that were officially introduced, respectively, in August 2015 and November 2006. The E-M10 II is a mirrorless interchangeable lens camera, while the D40 is a DSLR. The cameras are based on a Four Thirds (E-M10 II) and an APS-C (D40) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Nikon provides 6 MP.

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

Headline Specifications
Olympus E-M10 II
versus
Nikon D40
Olympus E-M10 II   Nikon D40
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Nikon F mount lenses
15.9 MP – Four Thirds sensor 6 MP – APS-C sensor
1080/60p Video no Video
ISO 200-25,600 ISO 200-1,600 (200 - 3,200)
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD – 1040k dots 2.5" LCD – 230k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
8 shutter flaps per second 2.5 shutter flaps per second
In-body stabilizationLens stabilization only
320 shots per battery charge470 shots per battery charge
120 x 83 x 47 mm, 390 g 124 x 94 x 64 mm, 522 g
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Check E-M10 II offers at
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Check D40 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M10 Mark II and the Nikon D40? 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-M10 II and the Nikon D40. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

The E-M10 II can be obtained in three different colors (black, silver, brown), while the D40 is only available in black.

Size Olympus E-M10 II vs Nikon D40
Compare E-M10 II versus D40 top
Comparison E-M10 II or D40 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D40 is notably larger (17 percent) than the Olympus E-M10 II. Moreover, the D40 is markedly heavier (34 percent) than the E-M10 II. In this context, it is worth noting that neither the E-M10 II nor the D40 are weather-sealed.

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-M10 II) and the Nikon Lens Catalog (D40). Mirrorless cameras, such as the Olympus E-M10 II, 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-M10 II gets 320 shots out of its Olympus BLS-50 battery, while the D40 can take 470 images on a single charge of its Nikon EN-EL9 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 US$ 649ebay.com
2.
 
Nikon D40 124 mm 94 mm 64 mm 522 g 470 n Nov 2006 US$ 499ebay.com
3.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 US$ 729ebay.com
4.
 
Nikon D50 133 mm 102 mm 76 mm 620 g 400 n Apr 2005 US$ 749ebay.com
5.
 
Nikon D3100 124 mm 96 mm 75 mm 505 g 550 n Aug 2010 US$ 599ebay.com
6.
 
Nikon D3300 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 US$ 499ebay.com
7.
 
Nikon D3400 124 mm 98 mm 76 mm 445 g 1200 n Aug 2016 US$ 499ebay.com
8.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 US$ 699ebay.com
9.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 US$ 649ebay.com
10.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 US$ 999ebay.com
11.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 US$ 599ebay.com
12.
 
Olympus E-PL6 111 mm 64 mm 38 mm 325 g 360 n May 2013 US$ 599ebay.com
13.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 US$ 599ebay.com
14.
 
Olympus E-PL8 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 US$ 549ebay.com
15.
 
Olympus E-PL9 117 mm 68 mm 39 mm 380 g 350 n Feb 2018 US$ 599ebay.com
16.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 US$ 1 199ebay.com
17.
 
Panasonic GX85 122 mm 71 mm 44 mm 426 g 290 n Apr 2016 US$ 799 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The D40 was launched at a somewhat lower price (by 23 percent) than the E-M10 II, which makes it more attractive for photographers on a tight budget. 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 sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 Olympus E-M10 II features a Four Thirds sensor and the Nikon D40 an APS-C sensor. The sensor area in the D40 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-M10 II has a native 4:3 aspect ratio, while the one in the D40 offers a 3:2 aspect.

Olympus E-M10 II and Nikon D40 sensor measures

Despite having a smaller sensor, the Olympus E-M10 II offers a higher resolution of 15.9 megapixels, compared with 6 MP of the Nikon D40. 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 3.76μm versus 7.85μm for the D40). However, it should be noted that the E-M10 II is much more recent (by 8 years and 9 months) than the D40, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the E-M10 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Olympus E-M10 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 II for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 cm. The corresponding values for the Nikon D40 are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.

The Olympus OM-D E-M10 Mark II has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 100-25600. The corresponding ISO settings for the Nikon D40 are ISO 200 to ISO 1600, with the possibility to increase the ISO range to 200-3200.

In terms of underlying technology, the E-M10 II is build around a CMOS sensor, while the D40 uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

E-M10 II versus D40 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 E-M10 II provides substantially higher image quality than the D40, with an overall score that is 17 points higher. This advantage is based on 2.1 bits higher color depth, 1.5 EV in additional dynamic range, and 0.6 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.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
2.
 
Nikon D40 APS-C 6.0 3008 2000none21.011.056156
3.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
4.
 
Nikon D50 APS-C 6.0 3008 2000none20.910.856055
5.
 
Nikon D3100 APS-C 14.2 4608 30721080/24p22.511.391967
6.
 
Nikon D3300 APS-C 24.0 6000 40001080/60p24.312.8138582
7.
 
Nikon D3400 APS-C 24.0 6000 40001080/60p24.813.9119286
8.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
9.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p23.112.8112074
10.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
11.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
12.
 
Olympus E-PL6 Four Thirds 15.9 4608 34561080/30p22.512.071768
13.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
14.
 
Olympus E-PL8 Four Thirds 15.9 4608 34561080/30p23.012.6103073
15.
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p23.112.8116274
16.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
17.
 
Panasonic GX85 Four Thirds 15.8 4592 34484K/30p22.912.666271
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 can also record movies. The E-M10 II indeed provides movie recording capabilities, while the D40 does not. The highest resolution format that the E-M10 II can use is 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 II has an electronic viewfinder (2360k dots), while the D40 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the E-M10 II offers a wider field of view (100%) than the one in the D40 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M10 II has a higher magnification (0.62x vs 0.53x), 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 Olympus E-M10 II and Nikon D40 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.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
2.
 
Nikon D40optical n2.5 / 230 fixed n 1/4000s 2.5/s Y n
3.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
4.
 
Nikon D50optical n2.0 / 130 fixed n 1/4000s 2.5/s Y n
5.
 
Nikon D3100optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
6.
 
Nikon D3300optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
7.
 
Nikon D3400optical n3.0 / 921 fixed n 1/4000s 5.0/s Y n
8.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
9.
 
Olympus E-M10 III2360 n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
10.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
11.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
12.
 
Olympus E-PL6optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
13.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
14.
 
Olympus E-PL8optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
15.
 
Olympus E-PL9none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
16.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
17.
 
Panasonic GX852765 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-M10 II and the D40 is in-body image stabilization (IBIS). The E-M10 II reduces the risk of handshake-induced blur with all attached lenses, while the D40 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the E-M10 II is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Olympus E-M10 II 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-M10 II writes its imaging data to SDXC cards, while the D40 uses SDHC cards. The E-M10 II supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D40 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 OM-D E-M10 Mark II and Nikon D40 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.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
2.
 
Nikon D40Y- / ----2.0---
3.
 
Nikon D40XY- / ----2.0---
4.
 
Nikon D50Y- / ----2.0---
5.
 
Nikon D3100Ymono / mono--mini2.0---
6.
 
Nikon D3300Ymono / monoY-mini2.0---
7.
 
Nikon D3400Ymono / mono--mini2.0--Y
8.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
9.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
10.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
11.
 
Olympus E-PL5Ystereo / mono--mini2.0---
12.
 
Olympus E-PL6Ystereo / mono--mini2.0---
13.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
14.
 
Olympus E-PL8Ystereo / mono--micro2.0Y--
15.
 
Olympus E-PL9Ystereo / mono--micro2.0Y-Y
16.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
17.
 
Panasonic GX85Ystereo / mono--micro2.0Y--

It is notable that the E-M10 II offers wifi support, while the D40 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the E-M10 II and the D40 have been discontinued, but can regularly be found used on ebay. The D40 was replaced by the Nikon D40X, while the E-M10 II was followed by the Olympus E-M10 III. Further information on the features and operation of the E-M10 II and D40 can be found, respectively, in the Olympus E-M10 II Manual (free pdf) or the online Nikon D40 Manual.

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Review summary

So what conclusions can be drawn? Is the Olympus E-M10 II better than the Nikon D40 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Olympus OM-D E-M10 Mark II:

  • More detail: Offers more megapixels (15.9 vs 6MP) with a 59% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.1 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 1080/60p movies.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.62x vs 0.53x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 230k 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 burst: Shoots at higher frequency (8 vs 2.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (120x83mm vs 124x94mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 132g or 25 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 8 years and 9 months of technical progress since the D40 launch.

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Advantages of the Nikon D40:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Gets more shots (470 versus 320) out of a single battery charge.
  • More affordable: Was released into a lower priced segment (23 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in November 2006).

If the count of individual advantages (bullet points above) is taken as a guide, the E-M10 II is the clear winner of the match-up (24 : 5 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-M10 II 24:05 D40

How about other alternatives? Do the specifications of the Olympus E-M10 II and the Nikon D40 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the E-M10 II and the D40 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 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.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 US$ 649ebay.com
2.
 
Nikon D40..81/100..+ +o4.5/5 Nov 2006 US$ 499ebay.com
3.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 US$ 729ebay.com
4.
 
Nikon D50..78/100..+ +4/54.5/5 Apr 2005 US$ 749ebay.com
5.
 
Nikon D31005/5+ +..72/1004.5/54.5/5 Aug 2010 US$ 599ebay.com
6.
 
Nikon D33003/5+..77/1004.5/54.5/5 Jan 2014 US$ 499ebay.com
7.
 
Nikon D34004/5+4/576/1004/54.5/5 Aug 2016 US$ 499ebay.com
8.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 US$ 699ebay.com
9.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 US$ 649ebay.com
10.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 US$ 999ebay.com
11.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 US$ 599ebay.com
12.
 
Olympus E-PL6............ May 2013 US$ 599ebay.com
13.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 US$ 599ebay.com
14.
 
Olympus E-PL8........4.5/54/5 Sep 2016 US$ 549ebay.com
15.
 
Olympus E-PL9..+....4.5/54/5 Feb 2018 US$ 599ebay.com
16.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 US$ 1 199ebay.com
17.
 
Panasonic GX854.5/5+ +..82/1005/55/5 Apr 2016 US$ 799 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. 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? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M10 II vs Nikon D40

    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-M10 II Nikon D40
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Nikon F mount lenses
    Launch Date August 2015 November 2006
    Launch Price USD 649 USD 499
    Sensor Specs Olympus E-M10 II Nikon D40
    Sensor Technology CMOS CCD
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.7 x 15.6 mm
    Sensor Area 224.9 mm2 369.72 mm2
    Sensor Diagonal 21.6 mm 28.4 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 15.9 Megapixels 6 Megapixels
    Image Resolution 4608 x 3456 pixels 3008 x 2000 pixels
    Pixel Pitch 3.76 μm 7.85 μm
    Pixel Density 7.08 MP/cm2 1.63 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 200 - 25,600 ISO 200 - 1,600 ISO
    ISO Boost 100 - 25,600 ISO 200 - 3,200 ISO
    DXO Sensor Quality (score) 73 56
    DXO Color Depth (bits) 23.1 21.0
    DXO Dynamic Range (EV) 12.5 11.0
    DXO Low Light (ISO) 842 561
    Screen Specs Olympus E-M10 II Nikon D40
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.62x 0.53x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View
    Rear LCD Size 3.0inch 2.5inch
    LCD Resolution 1040k dots 230k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M10 II Nikon D40
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 8 shutter flaps/s 2.5 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDHC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Olympus E-M10 II Nikon D40
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI no HDMI
    Wifi Support Wifi built-in no Wifi
    Body Specs Olympus E-M10 II Nikon D40
    Battery Type Olympus BLS-50 Nikon EN-EL9
    Battery Life (CIPA)320 shots per charge470 shots per charge
    Body Dimensions 120 x 83 x 47 mm
    (4.7 x 3.3 x 1.9 in)
    124 x 94 x 64 mm
    (4.9 x 3.7 x 2.5 in)
    Camera Weight 390 g (13.8 oz) 522 g (18.4 oz)
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