Olympus E-400 vs YI M1
The Olympus E-400 and the YI M1 are two digital cameras that were announced, respectively, in September 2006 and September 2016. The E-400 is a DSLR, while the M1 is a mirrorless interchangeable lens camera. Both cameras are equipped with a Four Thirds sensor. The Olympus has a resolution of 10 megapixels, whereas the YI provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-400 and the YI M1? 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.
An illustration of the physical size and weight of the Olympus E-400 and the YI M1 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 M1 can be obtained in two different colors (black, silver), while the E-400 is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the YI M1 is considerably smaller (38 percent) than the Olympus E-400. Moreover, the M1 is substantially lighter (35 percent) than the E-400. In this context, it is worth noting that neither the E-400 nor the M1 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 (M1). Mirrorless cameras, such as the M1, 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.
The power pack in the M1 can be charged via the USB port, which can be very convenient when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|1.||Olympus E-400||130 mm||91 mm||53 mm||435 g||500||n||Sep 2006||699||ebay.com|
|2.||YI M1||114 mm||64 mm||34 mm||281 g||450||n||Sep 2016||349||ebay.com|
|3.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399||ebay.com|
|4.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299||ebay.com|
|5.||Canon SX710||113 mm||66 mm||35 mm||269 g||230||n||Jan 2015||349||ebay.com|
|6.||Fujifilm X-A3||117 mm||67 mm||40 mm||339 g||410||n||Aug 2016||399||ebay.com|
|7.||Nikon 1 J5||98 mm||60 mm||32 mm||231 g||250||n||Apr 2015||399||ebay.com|
|8.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729||ebay.com|
|9.||Olympus Stylus 1s||116 mm||87 mm||57 mm||402 g||450||n||Apr 2015||699||ebay.com|
|10.||Olympus Stylus 1||116 mm||87 mm||57 mm||402 g||410||n||Oct 2013||699||ebay.com|
|11.||Olympus E-450||130 mm||91 mm||53 mm||440 g||500||n||Mar 2009||499||ebay.com|
|12.||Olympus E-620||130 mm||94 mm||60 mm||521 g||500||n||Feb 2009||699||ebay.com|
|13.||Olympus E-420||130 mm||91 mm||53 mm||440 g||500||n||Mar 2008||599||ebay.com|
|14.||Olympus E-410||130 mm||91 mm||53 mm||435 g||500||n||Mar 2007||699||ebay.com|
|15.||Olympus E-510||136 mm||92 mm||68 mm||538 g||750||n||Mar 2007||799||ebay.com|
|16.||Olympus E-500||130 mm||95 mm||66 mm||479 g||750||n||Sep 2005||599||ebay.com|
|17.||Panasonic L10||135 mm||96 mm||78 mm||556 g||450||n||Aug 2007||599||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. 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 M1 was launched at a markedly lower price (by 50 percent) than the E-400, 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.
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. 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 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.
While the two cameras under review share the same sensor size, the M1 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 M1 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 M1 is much more recent (by 10 years) than the E-400, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.
The resolution advantage of the YI M1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the M1 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 YI M1 are ISO 100 to ISO 25600 (no boost).
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.
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|1.||Olympus E-400||Four Thirds||10.0||3648||2736||none||21.0||10.6||127||53|
|2.||YI M1||Four Thirds||20.2||5184||3888||4K/30p||23.0||12.6||1030||73|
|7.||Nikon 1 J5||1-inch||20.7||5568||3712||4K/15p||21.1||12.0||479||65|
|9.||Olympus Stylus 1s||1/1.7||11.8||3968||2976||1080/30p||20.2||11.3||-111||47|
|10.||Olympus Stylus 1||1/1.7||11.8||3968||2976||1080/30p||20.7||11.6||179||51|
|11.||Olympus E-450||Four Thirds||10.0||3648||2736||none||21.5||10.5||512||56|
|12.||Olympus E-620||Four Thirds||12.2||4032||3024||none||21.3||10.3||536||55|
|13.||Olympus E-420||Four Thirds||10.0||3648||2736||none||21.5||10.4||527||56|
|14.||Olympus E-410||Four Thirds||10.0||3648||2736||none||21.1||10.0||494||51|
|15.||Olympus E-510||Four Thirds||10.0||3648||2736||none||21.2||10.0||442||52|
|16.||Olympus E-500||Four Thirds||8.0||3264||2448||none||20.7||10.3||45||51|
|17.||Panasonic L10||Four Thirds||10.0||3648||2736||none||21.3||10.8||429||55|
|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 also of capturing video footage. The M1 indeed provides for movie recording, while the E-400 does not. The highest resolution format that the M1 can use is 4K/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-400 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M1 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-400, the YI M1, and comparable cameras.
|1.||Olympus E-400||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||n|
|2.||YI M1||none||n||3.0 / 1040||fixed||Y||1/4000s||5.0/s||n||n|
|3.||Canon SX730||none||n||3.0 / 922||tilting||n||1/3200s||5.9/s||Y||Y|
|4.||Canon SX420||none||n||3.0 / 230||fixed||n||1/4000s||0.5/s||Y||Y|
|5.||Canon SX710||none||n||3.0 / 922||fixed||n||1/3200s||6.0/s||Y||Y|
|6.||Fujifilm X-A3||none||n||3.0 / 1040||tilting||Y||1/4000s||6.0/s||Y||n|
|7.||Nikon 1 J5||none||n||3.0 / 1037||tilting||Y||1/4000s||60.0/s||Y||n|
|8.||Nikon D40X||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|9.||Olympus Stylus 1s||1440||n||3.0 / 1040||tilting||Y||1/2000s||7.0/s||Y||Y|
|10.||Olympus Stylus 1||1440||n||3.0 / 1040||tilting||Y||1/2000s||7.0/s||Y||Y|
|11.||Olympus E-450||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||n|
|12.||Olympus E-620||optical||n||2.7 / 230||swivel||n||1/4000s||4.0/s||Y||Y|
|13.||Olympus E-420||optical||n||2.7 / 215||fixed||n||1/4000s||3.5/s||Y||n|
|14.||Olympus E-410||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||n|
|15.||Olympus E-510||optical||n||2.5 / 215||fixed||n||1/4000s||3.0/s||Y||Y|
|16.||Olympus E-500||optical||n||2.5 / 215||fixed||n||1/4000s||2.5/s||Y||n|
|17.||Panasonic L10||optical||n||2.5 / 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 difference between the cameras concerns the presence of an on-board flash. The E-400 has one, while the M1 does not. While the built-in flash of the E-400 is not very powerful, it can at times be useful as a fill-in light.
The YI M1 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 M1 uses SDXC cards. The E-400 features dual card slots, which can be very useful in case a memory card fails. In contrast, the M1 only has one slot.
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 YI M1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Olympus E-400||Y||- / -||-||-||-||2.0||-||-||-|
|2.||YI M1||Y||stereo / mono||-||-||micro||2.0||Y||-||Y|
|3.||Canon SX730||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|4.||Canon SX420||-||mono / mono||-||-||-||2.0||Y||Y||-|
|5.||Canon SX710||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|6.||Fujifilm X-A3||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|7.||Nikon 1 J5||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Nikon D40X||Y||- / -||-||-||-||2.0||-||-||-|
|9.||Olympus Stylus 1s||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|10.||Olympus Stylus 1||Y||stereo / mono||-||-||micro||2.0||Y||-||-|
|11.||Olympus E-450||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Olympus E-620||Y||- / -||-||-||-||2.0||-||-||-|
|13.||Olympus E-420||Y||- / -||-||-||-||2.0||-||-||-|
|14.||Olympus E-410||Y||- / -||-||-||-||2.0||-||-||-|
|15.||Olympus E-510||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Olympus E-500||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Panasonic L10||Y||- / -||-||-||-||2.0||-||-||-|
It is notable that the M1 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.
Both the E-400 and the M1 have been discontinued, but can regularly be found used on ebay. The E-400 was replaced by the Olympus E-410, while the M1 does not have a direct successor. Further information on the features and operation of the E-400 and M1 can be found, respectively, in the Olympus E-400 Manual (free pdf) or the online YI M1 Manual.
So what conclusions can be drawn? Which of the two cameras – the Olympus E-400 or the YI M1 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Olympus E-400:
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Longer lasting: Can take more shots (500 versus 450) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- 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).
Reasons to prefer the YI M1:
- More detail: Has more megapixels (20.2 vs 10MP), which boosts linear resolution by 42%.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- 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).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (114x64mm vs 130x91mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 154g or 35 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- 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 affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
- More modern: Reflects 10 years of technical progress since the E-400 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the M1 is the clear winner of the contest (15 : 5 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 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.
How about other alternatives? Do the specifications of the Olympus E-400 and the YI M1 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-400 or the M1 perform in practice. 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.
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.
|1.||Olympus E-400||..||85/100||..||..||4/5||4/5||Sep 2006||699||ebay.com|
|2.||YI M1||..||..||..||69/100||..||..||Sep 2016||349||ebay.com|
|3.||Canon SX730||..||+||..||..||4/5||4/5||Apr 2017||399||ebay.com|
|4.||Canon SX420||..||..||..||..||..||3/5||Jan 2016||299||ebay.com|
|5.||Canon SX710||..||+||..||..||4/5||3.5/5||Jan 2015||349||ebay.com|
|6.||Fujifilm X-A3||..||..||..||74/100||4.5/5||4/5||Aug 2016||399||ebay.com|
|7.||Nikon 1 J5||..||..||..||..||4.5/5||4.5/5||Apr 2015||399||ebay.com|
|8.||Nikon D40X||..||79/100||..||+ +||4/5||4/5||Mar 2007||729||ebay.com|
|9.||Olympus Stylus 1s||..||..||..||..||..||..||Apr 2015||699||ebay.com|
|10.||Olympus Stylus 1||..||+ +||..||..||4.5/5||4.5/5||Oct 2013||699||ebay.com|
|11.||Olympus E-450||..||..||..||..||4/5||4/5||Mar 2009||499||ebay.com|
|12.||Olympus E-620||3/5||88/100||..||72/100||4.5/5||5/5||Feb 2009||699||ebay.com|
|13.||Olympus E-420||..||85/100||..||+ +||4/5||4.5/5||Mar 2008||599||ebay.com|
|14.||Olympus E-410||..||86/100||..||+ +||4/5||4.5/5||Mar 2007||699||ebay.com|
|15.||Olympus E-510||..||89/100||..||+ +||3.5/5||4.5/5||Mar 2007||799||ebay.com|
|16.||Olympus E-500||..||76/100||..||+ +||..||..||Sep 2005||599||ebay.com|
|17.||Panasonic L10||..||85/100||..||+||3.5/5||4/5||Aug 2007||599||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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. 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.
Other camera comparisons
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Specifications: Olympus E-400 vs YI M1
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 Model||Olympus E-400||YI M1|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Four Thirds lenses||Micro Four Thirds lenses|
|Launch Date||September 2006||September 2016|
|Launch Price||USD 699||USD 349|
|Sensor Specs||Olympus E-400||YI M1|
|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|
|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||Anti-Alias filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100 - 1,600 ISO||100 - 25,600 ISO|
|Screen Specs||Olympus E-400||YI M1|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View|
|Rear LCD Size||2.5inch||3.0inch|
|LCD Resolution||215k dots||1040k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Olympus E-400||YI M1|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||3 shutter flaps/s||5 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||no On-Board 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||YI M1|
|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||YI M1|
|Battery Life (CIPA)||500 shots per charge||450 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
130 x 91 x 53 mm
(5.1 x 3.6 x 2.1 in)
114 x 64 x 34 mm
(4.5 x 2.5 x 1.3 in)
|Camera Weight||435 g (15.3 oz)||281 g (9.9 oz)|
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