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Olympus E-420 vs E-M10 III

The Olympus E-420 and the Olympus OM-D E-M10 Mark III are two digital cameras that were announced, respectively, in March 2008 and August 2017. The E-420 is a DSLR, while the E-M10 III is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The E-420 has a resolution of 10 megapixels, whereas the E-M10 III provides 15.9 MP.

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

Headline Specifications
Olympus E-420
versus
Olympus E-M10 III
Olympus E-420   Olympus E-M10 III
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Micro Four Thirds lenses
10 MP – Four Thirds sensor 15.9 MP – Four Thirds sensor
no Video 4K/30p Video
ISO 100-1,600 ISO 200-25,600
Optical viewfinder Electronic viewfinder (2360k dots)
2.7" LCD – 215k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3.5 shutter flaps per second 8.6 shutter flaps per second
Lens stabilization onlyIn-body stabilization
500 shots per battery charge330 shots per battery charge
130 x 91 x 53 mm, 440 g 122 x 84 x 50 mm, 410 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-420 and the Olympus OM-D E-M10 Mark III? 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

An illustration of the physical size and weight of the Olympus E-420 and the Olympus E-M10 III is provided in the side-by-side display below. 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-M10 III can be obtained in two different colors (black, silver), while the E-420 is only available in black.

Size Olympus E-420 vs Olympus E-M10 III
Compare E-420 versus E-M10 III top
Comparison E-420 or E-M10 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M10 III is notably smaller (13 percent) than the Olympus E-420. Moreover, the E-M10 III is markedly lighter (7 percent) than the E-420. In this context, it is worth noting that neither the E-420 nor the E-M10 III 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Four Thirds Lens Catalog (E-420) and the Micro Four Thirds Lens Catalog (E-M10 III). Mirrorless cameras, such as the E-M10 III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the E-420 gets 500 shots out of its Olympus BLS-1 battery, while the E-M10 III can take 330 images on a single charge of its Olympus BLS-50 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
2.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 649ebay.com
3.
 
Nikon D3000 126 mm 97 mm 64 mm 536 g 500 n Jul 2009 599ebay.com
4.
 
Nikon D60 126 mm 94 mm 64 mm 522 g 500 n Jan 2008 629ebay.com
5.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
6.
 
Olympus E-M10 IV 122 mm 84 mm 49 mm 383 g 360 n Aug 2020 699 amazon.com
7.
 
Olympus E-PL10 117 mm 68 mm 39 mm 380 g 350 n Oct 2019 599ebay.com
8.
 
Olympus E-PL9 117 mm 68 mm 39 mm 380 g 350 n Feb 2018 599ebay.com
9.
 
Olympus E-PL8 115 mm 67 mm 38 mm 357 g 350 n Sep 2016 549ebay.com
10.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
11.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 499ebay.com
12.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449ebay.com
13.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
14.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
15.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699ebay.com
16.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 699ebay.com
17.
 
Panasonic L10 135 mm 96 mm 78 mm 556 g 450 n Aug 2007 599ebay.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 naturally be influenced heavily by the price. 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-420 was somewhat cheaper (by 8 percent) than the E-M10 III at launch, but both cameras fall into the same price category. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a Four Thirds sensor and have a format factor (sometimes also referred to as "crop factor") of 2.0. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Technology-wise, the E-M10 III uses a more advanced image processing engine (TruePic VIII) than the E-420 (TruePic III), with benefits for noise reduction, color accuracy, and processing speed.

Olympus E-420 and Olympus E-M10 III sensor measures

While the two cameras under review share the same sensor size, the E-M10 III offers a higher resolution of 15.9 megapixels, compared with 10 MP of the E-420. This megapixels advantage translates into a 26 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M10 III has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.76μm versus 4.74μm for the E-420). However, it should be noted that the E-M10 III is much more recent (by 9 years and 5 months) than the E-420, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that the E-M10 III 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 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 III 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 Olympus E-420 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 Olympus E-420 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Olympus OM-D E-M10 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.

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

E-420 versus E-M10 III 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"). 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
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
2.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p23.112.8112074
3.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
4.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
5.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
6.
 
Olympus E-M10 IV Four Thirds 20.2 5184 38884K/30p23.313.2140276
7.
 
Olympus E-PL10 Four Thirds 15.9 4608 34564K/30p23.313.1132476
8.
 
Olympus E-PL9 Four Thirds 15.9 4608 34564K/30p23.112.8116274
9.
 
Olympus E-PL8 Four Thirds 15.9 4608 34561080/30p23.012.6103073
10.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
11.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
12.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
13.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
14.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
15.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
16.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
17.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. The E-M10 III indeed provides for movie recording, while the E-420 does not. The highest resolution format that the E-M10 III can use is 4K/30p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M10 III has an electronic viewfinder (2360k dots), while the E-420 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 III offers a wider field of view (100%) than the one in the E-420 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M10 III has a higher magnification (0.62x vs 0.46x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Olympus E-420 and Olympus E-M10 III along with similar information for a selection of comparators.

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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-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
2.
 
Olympus E-M10 III2360 n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
3.
 
Nikon D3000optical n3.0 / 230 fixed n 1/4000s 3.0/s Y n
4.
 
Nikon D60optical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
5.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
6.
 
Olympus E-M10 IV2360 n3.0 / 1040 tilting Y 1/4000s 15.0/s Y Y
7.
 
Olympus E-PL10none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
8.
 
Olympus E-PL9none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
9.
 
Olympus E-PL8optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
10.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
11.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
12.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
13.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
14.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
15.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
16.
 
Olympus E-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
17.
 
Panasonic L10optical n2.5 / 207 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 differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M10 III has a touchscreen, while the E-420 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 III 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 III 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-420 writes its imaging data to Compact Flash or xD Picture cards, while the E-M10 III uses SDXC cards. The E-420 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M10 III 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 Olympus E-420 and Olympus OM-D E-M10 Mark III 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-420Y- / ----2.0---
2.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
3.
 
Nikon D3000Y- / ----2.0---
4.
 
Nikon D60Y- / ----2.0---
5.
 
Nikon D40XY- / ----2.0---
6.
 
Olympus E-M10 IVYstereo / mono--micro2.0Y-Y
7.
 
Olympus E-PL10Ystereo / mono--micro2.0Y-Y
8.
 
Olympus E-PL9Ystereo / mono--micro2.0Y-Y
9.
 
Olympus E-PL8Ystereo / mono--micro2.0Y--
10.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
11.
 
Olympus E-450Y- / ----2.0---
12.
 
Olympus E-600Y- / ----2.0---
13.
 
Olympus E-620Y- / ----2.0---
14.
 
Olympus E-520Y- / ----2.0---
15.
 
Olympus E-410Y- / ----2.0---
16.
 
Olympus E-400Y- / ----2.0---
17.
 
Panasonic L10Y- / ----2.0---
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It is notable that the E-M10 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-420 does not provide wifi capability.

Both the E-420 and the E-M10 III have been discontinued, but can regularly be found used on ebay. The E-M10 III was replaced by the Olympus E-M10 IV, while the E-420 does not have a direct successor. Further information on the features and operation of the E-420 and E-M10 III can be found, respectively, in the Olympus E-420 Manual (free pdf) or the online Olympus E-M10 III Manual.

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Review summary

So what conclusions can be drawn? Is there a clear favorite between the Olympus E-420 and the Olympus E-M10 III? Which camera is better? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Olympus E-420:

  • 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: Can take more shots (500 versus 330) on a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been available for much longer (launched in March 2008).


Advantages of the Olympus OM-D E-M10 Mark III:

  • More detail: Has more megapixels (15.9 vs 10MP), which boosts linear resolution by 26%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better jpgs: Has a more modern image processing engine (TruePic VIII vs TruePic III).
  • Broader imaging potential: Can capture not only stills but also 4K/30p video.
  • 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 0.46x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 215k 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 burst: Shoots at higher frequency (8.6 vs 3.5 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 (122x84mm vs 130x91mm) and will fit more readily into a bag.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More modern: Reflects 9 years and 5 months of technical progress since the E-420 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the E-M10 III is the clear winner of the contest (19 : 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 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.

E-420 05:19 E-M10 III

How about other alternatives? Do the specifications of the Olympus E-420 and the Olympus E-M10 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 remains incomplete and does no justice, for example, to the way the E-420 or the E-M10 III perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
2.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 649ebay.com
3.
 
Nikon D3000..+..72/1004/54.5/5 Jul 2009 599ebay.com
4.
 
Nikon D60..80/100..+ +4/54.5/5 Jan 2008 629ebay.com
5.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
6.
 
Olympus E-M10 IV4.5/5..5/581/1004.5/54.5/5 Aug 2020 699 amazon.com
7.
 
Olympus E-PL10....4/577/100..4/5 Oct 2019 599ebay.com
8.
 
Olympus E-PL9..+....4.5/54/5 Feb 2018 599ebay.com
9.
 
Olympus E-PL8........4.5/54/5 Sep 2016 549ebay.com
10.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
11.
 
Olympus E-450........4/54/5 Mar 2009 499ebay.com
12.
 
Olympus E-600..........4.5/5 Aug 2009 449ebay.com
13.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
14.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
15.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699ebay.com
16.
 
Olympus E-400..85/100....4/54/5 Sep 2006 699ebay.com
17.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 599ebay.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 were established in reference to similarly priced cameras that were available in the market at the time of the review. 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, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Olympus E-420 vs Olympus E-M10 III

    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-420 Olympus E-M10 III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Micro Four Thirds lenses
    Launch Date March 2008 August 2017
    Launch Price USD 599 USD 649
    Sensor Specs Olympus E-420 Olympus E-M10 III
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm 17.3 x 13.0 mm
    Sensor Area 224.9 mm2 224.9 mm2
    Sensor Diagonal 21.6 mm 21.6 mm
    Crop Factor 2.0x 2.0x
    Sensor Resolution 10 Megapixels 15.9 Megapixels
    Image Resolution 3648 x 2736 pixels 4608 x 3456 pixels
    Pixel Pitch 4.74 μm 3.76 μm
    Pixel Density 4.44 MP/cm2 7.08 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 4K/30p Video
    ISO Setting 100 - 1,600 ISO 200 - 25,600 ISO
    ISO Boost no Enhancement 100 - 25,600 ISO
    Image Processor TruePic III TruePic VIII
    DXO Sensor Quality (score) 56 ..
    DXO Color Depth (bits) 21.5 ..
    DXO Dynamic Range (EV) 10.4 ..
    DXO Low Light (ISO) 527 ..
    Screen Specs Olympus E-420 Olympus E-M10 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.46x 0.62x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 3.0inch
    LCD Resolution 215k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-420 Olympus E-M10 III
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/4000s
    Continuous Shooting 3.5 shutter flaps/s 8.6 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/16000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium CF or XD cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    Connectivity Specs Olympus E-420 Olympus E-M10 III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Body Specs Olympus E-420 Olympus E-M10 III
    Battery Type Olympus BLS-1 Olympus BLS-50
    Battery Life (CIPA)500 shots per charge330 shots per charge
    Body Dimensions 130 x 91 x 53 mm
    (5.1 x 3.6 x 2.1 in)
    122 x 84 x 50 mm
    (4.8 x 3.3 x 2.0 in)
    Camera Weight 440 g (15.5 oz) 410 g (14.5 oz)
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    Check E-420 offers at
    ebay.com
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    Check E-M10 III offers at
    ebay.com

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