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Olympus E-400 vs E-M10 IV

The Olympus E-400 and the Olympus OM-D E-M10 Mark IV are two digital cameras that were revealed to the public, respectively, in September 2006 and August 2020. The E-400 is a DSLR, while the E-M10 IV is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The E-400 has a resolution of 10 megapixels, whereas the E-M10 IV provides 20.2 MP.

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

Headline Specifications
Olympus E-400
versus
Olympus E-M10 IV
Olympus E-400   Olympus E-M10 IV
Digital single lens reflex Mirrorless system camera
Four Thirds lenses Micro Four Thirds lenses
10 MP – Four Thirds sensor 20.2 MP – Four Thirds sensor
no Video 4K/30p Video
ISO 100-1,600 ISO 200-25,600
Optical viewfinder Electronic viewfinder (2360k dots)
2.5" LCD – 215k dots 3.0" LCD – 1040k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
3 shutter flaps per second 15 shutter flaps per second
Lens stabilization onlyIn-body stabilization
500 shots per battery charge360 shots per battery charge
130 x 91 x 53 mm, 435 g 122 x 84 x 49 mm, 383 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-400 and the Olympus OM-D E-M10 Mark IV? 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 side-by-side display below illustrates the physical size and weight of the Olympus E-400 and the Olympus E-M10 IV. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The E-M10 IV can be obtained in two different colors (black, silver), while the E-400 is only available in black.

Size Olympus E-400 vs Olympus E-M10 IV
Compare E-400 versus E-M10 IV top
Comparison E-400 or E-M10 IV 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 IV is notably smaller (13 percent) than the Olympus E-400. Moreover, the E-M10 IV is markedly lighter (12 percent) than the E-400. In this context, it is worth noting that neither the E-400 nor the E-M10 IV 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-400) and the Micro Four Thirds Lens Catalog (E-M10 IV). Mirrorless cameras, such as the E-M10 IV, 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-400 gets 500 shots out of its BLS-1 battery, while the E-M10 IV can take 360 images on a single charge of its BLS-50 power pack. The power pack in the E-M10 IV can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-400 130 mm 91 mm 53 mm 435 g 500 n Sep 2006 699ebay.com
2.
 
Olympus E-M10 IV 122 mm 84 mm 49 mm 383 g 360 n Aug 2020 699 amazon.com
3.
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729ebay.com
4.
 
Olympus E-P7 118 mm 69 mm 38 mm 337 g 360 n Jun 2021 799 amazon.com
5.
 
Olympus E-PL10 117 mm 68 mm 39 mm 380 g 350 n Oct 2019 599 amazon.com
6.
 
Olympus E-M10 III 122 mm 84 mm 50 mm 410 g 330 n Aug 2017 649ebay.com
7.
 
Olympus E-M10 II 120 mm 83 mm 47 mm 390 g 320 n Aug 2015 649ebay.com
8.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
9.
 
Olympus E-P3 122 mm 69 mm 34 mm 369 g 330 n Jun 2011 799ebay.com
10.
 
Olympus E-PL2 114 mm 72 mm 42 mm 362 g 280 n Jan 2011 599ebay.com
11.
 
Olympus E-450 130 mm 91 mm 53 mm 440 g 500 n Mar 2009 499ebay.com
12.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
13.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
14.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699ebay.com
15.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799ebay.com
16.
 
Olympus E-500 130 mm 95 mm 66 mm 479 g 750 n Sep 2005 599ebay.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.

Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The two cameras under review were launched at the same price and fall into the same 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

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 IV uses a more advanced image processing engine (TruePic VIII) than the E-400 (TruePic), with benefits for noise reduction, color accuracy, and processing speed.

Olympus E-400 and Olympus E-M10 IV sensor measures

While the two cameras under review share the same sensor size, the E-M10 IV offers a higher resolution of 20.2 megapixels, compared with 10 MP of the E-400. This megapixels advantage translates into a 42 percent gain in linear resolution. On the other hand, these sensor specs imply that the E-M10 IV has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.74μm for the E-400). However, it should be noted that the E-M10 IV is much more recent (by 13 years and 10 months) than the E-400, 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 IV 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 IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-M10 IV for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Olympus E-400 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-400 has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Olympus OM-D E-M10 Mark IV 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-400 versus E-M10 IV 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"). 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
2.
 
Olympus E-M10 IV Four Thirds 20.2 5184 38884K/30p23.313.2140276
3.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
4.
 
Olympus E-P7 Four Thirds 20.2 5184 38884K/30p23.413.3149477
5.
 
Olympus E-PL10 Four Thirds 15.9 4608 34564K/30p23.313.1132476
6.
 
Olympus E-M10 III Four Thirds 15.9 4608 34564K/30p23.112.8112074
7.
 
Olympus E-M10 II Four Thirds 15.9 4608 34561080/60p23.112.584273
8.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
9.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
10.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
11.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
12.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
13.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
14.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
15.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
16.
 
Olympus E-500 Four Thirds 8.0 3264 2448none20.710.34551
17.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
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 IV indeed provides for movie recording, while the E-400 does not. The highest resolution format that the E-M10 IV can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M10 IV has an electronic viewfinder (2360k dots), while the E-400 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 IV offers a wider field of view (100%) than the one in the E-400 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M10 IV 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-400 and Olympus E-M10 IV along with similar information for a selection of comparators.

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Core Features
    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-400optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
2.
 
Olympus E-M10 IV2360 n3.0 / 1040 tilting Y 1/4000s 15.0/s Y Y
3.
 
Nikon D40Xoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
4.
 
Olympus E-P7none n3.0 / 1040 tilting Y 1/4000s 8.7/s Y Y
5.
 
Olympus E-PL10none n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
6.
 
Olympus E-M10 III2360 n3.0 / 1040 tilting Y 1/4000s 8.6/s Y Y
7.
 
Olympus E-M10 II2360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y Y
8.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
9.
 
Olympus E-P3optional n3.0 / 614 fixed Y 1/4000s 3.0/s Y Y
10.
 
Olympus E-PL2optional n3.0 / 460 fixed n 1/4000s 3.0/s Y Y
11.
 
Olympus E-450optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
12.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
13.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
14.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
15.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
16.
 
Olympus E-500optical n2.5 / 215 fixed n 1/4000s 2.5/s Y n
17.
 
Panasonic L10optical n2.5 / 207 swivel n 1/4000s 3.0/s Y n
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-M10 IV has a touchscreen, while the E-400 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The E-M10 IV has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the E-400 does not have a selfie-screen.

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 IV 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 IV 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-400 writes its imaging data to Compact Flash or xD Picture cards, while the E-M10 IV uses SDXC cards. The E-400 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M10 IV 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 Olympus E-400 and Olympus OM-D E-M10 Mark IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-400Y- / ----2.0---
2.
 
Olympus E-M10 IVYstereo / mono--micro2.0Y-Y
3.
 
Nikon D40XY- / ----2.0---
4.
 
Olympus E-P7Ystereo / mono--micro2.0Y-Y
5.
 
Olympus E-PL10Ystereo / mono--micro2.0Y-Y
6.
 
Olympus E-M10 IIIYstereo / mono--micro2.0Y--
7.
 
Olympus E-M10 IIYstereo / mono--micro2.0Y--
8.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
9.
 
Olympus E-P3Ystereo / ---mini2.0---
10.
 
Olympus E-PL2Ystereo / ---mini2.0---
11.
 
Olympus E-450Y- / ----2.0---
12.
 
Olympus E-620Y- / ----2.0---
13.
 
Olympus E-420Y- / ----2.0---
14.
 
Olympus E-410Y- / ----2.0---
15.
 
Olympus E-510Y- / ----2.0---
16.
 
Olympus E-500Y- / ----2.0---
17.
 
Panasonic L10Y- / ----2.0---

It is notable that the E-M10 IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-400 does not provide wifi capability.

The E-M10 IV is a recent model that features in the current product line-up of Olympus. In contrast, the E-400 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-400 was succeeded by the Olympus E-410. Further information on the features and operation of the E-400 and E-M10 IV can be found, respectively, in the Olympus E-400 Manual (free pdf) or the online Olympus E-M10 IV Manual.

Review summary

So what conclusions can be drawn? Is the Olympus E-400 better than the Olympus E-M10 IV or vice versa? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Olympus E-400:

  • 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 360) 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 September 2006).


Arguments in favor of the Olympus OM-D E-M10 Mark IV:

  • More detail: Has more megapixels (20.2 vs 10MP), which boosts linear resolution by 42%.
  • 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).
  • 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 2.5") 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.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (15 vs 3 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.
  • Less heavy: Has a lower weight (by 52g or 12 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 13 years and 10 months of technical progress since the E-400 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the E-M10 IV is the clear winner of the contest (23 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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-400 05:23 E-M10 IV

How about other alternatives? Do the specifications of the Olympus E-400 and the Olympus E-M10 IV 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the E-400 or the E-M10 IV 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 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-400..85/100....4/54/5 Sep 2006 699ebay.com
2.
 
Olympus E-M10 IV4.5/5..5/581/1004.5/54.5/5 Aug 2020 699 amazon.com
3.
 
Nikon D40X..79/100..+ +4/54/5 Mar 2007 729ebay.com
4.
 
Olympus E-P74/5..4.5/5....4.5/5 Jun 2021 799 amazon.com
5.
 
Olympus E-PL10....4/577/100..4/5 Oct 2019 599 amazon.com
6.
 
Olympus E-M10 III..+5/580/1004.5/54.5/5 Aug 2017 649ebay.com
7.
 
Olympus E-M10 II4.5/5+ +..80/1005/55/5 Aug 2015 649ebay.com
8.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
9.
 
Olympus E-P3..83/100..74/1004.5/54.5/5 Jun 2011 799ebay.com
10.
 
Olympus E-PL23/583/100..71/1004.5/54.5/5 Jan 2011 599ebay.com
11.
 
Olympus E-450........4/54/5 Mar 2009 499ebay.com
12.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
13.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
14.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699ebay.com
15.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799ebay.com
16.
 
Olympus E-500..76/100..+ +.... Sep 2005 599ebay.com
17.
 
Panasonic L10..85/100..+3.5/54/5 Aug 2007 599ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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. 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. 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? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-400 vs Olympus E-M10 IV

    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-400 Olympus E-M10 IV
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Four Thirds lenses Micro Four Thirds lenses
    Launch Date September 2006 August 2020
    Launch Price USD 699 USD 699
    Sensor Specs Olympus E-400 Olympus E-M10 IV
    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 20.2 Megapixels
    Image Resolution 3648 x 2736 pixels 5184 x 3888 pixels
    Pixel Pitch 4.74 μm 3.34 μm
    Pixel Density 4.44 MP/cm2 8.96 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 TruePic VIII
    Screen Specs Olympus E-400 Olympus E-M10 IV
    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
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 215k dots 1040k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Olympus E-400 Olympus E-M10 IV
    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 shutter flaps/s 15 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-400 Olympus E-M10 IV
    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
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Olympus E-400 Olympus E-M10 IV
    Battery Type BLS-1 BLS-50
    Battery Life (CIPA)500 shots per charge360 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 130 x 91 x 53 mm
    (5.1 x 3.6 x 2.1 in)
    122 x 84 x 49 mm
    (4.8 x 3.3 x 1.9 in)
    Camera Weight 435 g (15.3 oz) 383 g (13.5 oz)
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