Olympus E-400 versus Pentax K-3 II
The Olympus E-400 and the Pentax K-3 II are two digital cameras that were officially introduced, respectively, in September 2006 and April 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-400) and an APS-C sensor. The Olympus has a resolution of 10 megapixel, whereas the Pentax provides 24.1 MP.
The side-by-side display below illustrates the physical size and weight of the Olympus E-400 and the Pentax K-3 II. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter. You can also toggle the display to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the E-400 – represents the basis or 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 II is notably larger (11 percent) than the Olympus E-400. Moreover, the K-3 II is substantially heavier (84 percent) than the E-400. It is noteworthy in this context that the K-3 II is splash and dust-proof, while the E-400 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
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, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Olympus E-400 (⇒ rgt)||130 mm||91 mm||53 mm||435 g||500||no||2006||699||discont.||check|
|Pentax K-3 II (⇒ lft)||131 mm||100 mm||77 mm||800 g||720||YES||2015||1,099||latest||check|
|Nikon D40X (⇒ lft | rgt)||124 mm||94 mm||64 mm||522 g||520||no||2007||729||discont.||check|
|Olympus E-620 (⇒ lft | rgt)||130 mm||94 mm||60 mm||521 g||500||no||2009||699||discont.||check|
|Olympus E-450 (⇒ lft | rgt)||130 mm||91 mm||53 mm||440 g||500||no||2009||499||discont.||check|
|Olympus E-420 (⇒ lft | rgt)||130 mm||91 mm||53 mm||440 g||500||no||2008||599||discont.||check|
|Olympus E-410 (⇒ lft | rgt)||130 mm||91 mm||53 mm||435 g||500||no||2007||699||discont.||check|
|Olympus E-510 (⇒ lft | rgt)||136 mm||92 mm||68 mm||538 g||750||no||2007||799||discont.||check|
|Olympus E-330 (⇒ lft | rgt)||140 mm||87 mm||72 mm||637 g||750||no||2006||999||discont.||check|
|Olympus E-500 (⇒ lft | rgt)||130 mm||95 mm||66 mm||479 g||750||no||2005||599||discont.||check|
|Olympus E-300 (⇒ lft | rgt)||147 mm||85 mm||64 mm||624 g||750||no||2004||799||discont.||check|
|Panasonic GX8 (⇒ lft | rgt)||133 mm||78 mm||63 mm||487 g||330||YES||2015||1,199||discont.||check|
|Panasonic L10 (⇒ lft | rgt)||135 mm||96 mm||78 mm||556 g||450||no||2007||599||discont.||check|
|Pentax KP (⇒ lft | rgt)||132 mm||101 mm||76 mm||703 g||390||YES||2017||1,099||latest||check|
|Pentax K-70 (⇒ lft | rgt)||126 mm||93 mm||74 mm||688 g||410||YES||2016||649||latest||check|
|Pentax K-3 (⇒ lft | rgt)||131 mm||100 mm||77 mm||800 g||560||YES||2013||1,299||discont.||check|
|Sony RX10 II (⇒ lft | rgt)||129 mm||88 mm||102 mm||813 g||400||YES||2015||1,299||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-400 was launched at a markedly lower price (by 36 percent) than the K-3 II, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Olympus E-400 features a Four Thirds sensor and the Pentax K-3 II an APS-C sensor. The sensor area in the K-3 II is 63 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-400 has a native 4:3 aspect ratio, while the one in the K-3 II offers a 3:2 aspect.
With 24.1MP, the K-3 II offers a higher resolution than the E-400 (10MP), but the K-3 II has smaller individual pixels (pixel pitch of 3.90μm versus 4.74μm for the E-400). Yet, the K-3 II is a much more recent model (by 8 years and 7 months) than the E-400, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the K-3 II has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Unlike the E-400, the K-3 II has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
For most cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Olympus E-400 (⇒ rgt)||Four Thirds||10.0||3648||2736||no||-||-||-||-|
|Pentax K-3 II (⇒ lft)||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|Nikon D40X (⇒ lft | rgt)||APS-C||10.0||3872||2592||no||22.4||11.4||516||63|
|Olympus E-620 (⇒ lft | rgt)||Four Thirds||12.2||4032||3024||no||21.3||10.3||536||55|
|Olympus E-450 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.5||10.5||512||56|
|Olympus E-420 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.5||10.4||527||56|
|Olympus E-410 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.1||10.0||494||51|
|Olympus E-510 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.2||10.0||442||52|
|Olympus E-330 (⇒ lft | rgt)||Four Thirds||7.4||3136||2352||no||-||-||-||-|
|Olympus E-500 (⇒ lft | rgt)||Four Thirds||8.0||3264||2448||no||-||-||-||-|
|Olympus E-300 (⇒ lft | rgt)||Four Thirds||8.0||3264||2448||no||-||-||-||-|
|Panasonic GX8 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.5||12.6||806||75|
|Panasonic L10 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.3||10.8||429||55|
|Pentax KP (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||-||-||-||-|
|Pentax K-70 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60i||-||-||-||-|
|Pentax K-3 (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80|
|Sony RX10 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||4K/30p||23.0||12.6||531||70|
Many modern cameras cannot only take still pictures, but also record videos. The K-3 II indeed provides for movie recording, while the E-400 does not. The highest resolution format that the K-3 II can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a range of features. The E-400 and the K-3 II are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The table below summarizes some of the other core capabilities of the Olympus E-400 and Pentax K-3 II in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.
|Olympus E-400 (⇒ rgt)||optical||no||2.5||215||fixed||no||4000||3.0||10||no|
|Pentax K-3 II (⇒ lft)||optical||YES||3.2||1037||fixed||no||8000||8.3||no||YES|
|Nikon D40X (⇒ lft | rgt)||optical||no||2.5||230||fixed||no||4000||3.0||17||no|
|Olympus E-620 (⇒ lft | rgt)||optical||no||2.7||230||swivel||no||4000||4.0||12||YES|
|Olympus E-450 (⇒ lft | rgt)||optical||no||2.7||215||fixed||no||4000||3.5||12||no|
|Olympus E-420 (⇒ lft | rgt)||optical||no||2.7||215||fixed||no||4000||3.5||12||no|
|Olympus E-410 (⇒ lft | rgt)||optical||no||2.5||215||fixed||no||4000||3.0||10||no|
|Olympus E-510 (⇒ lft | rgt)||optical||no||2.5||215||fixed||no||4000||3.0||12||YES|
|Olympus E-330 (⇒ lft | rgt)||optical||no||2.5||215||tilting||no||4000||3.0||13||no|
|Olympus E-500 (⇒ lft | rgt)||optical||no||2.5||215||fixed||no||4000||2.5||13||no|
|Olympus E-300 (⇒ lft | rgt)||optical||no||1.8||134||fixed||no||4000||2.5||11||no|
|Panasonic GX8 (⇒ lft | rgt)||2360||no||3.0||1040||swivel||YES||8000||10.0||no||YES|
|Panasonic L10 (⇒ lft | rgt)||optical||no||2.5||207||swivel||no||4000||3.0||11||no|
|Pentax KP (⇒ lft | rgt)||optical||no||3.0||921||tilting||no||6000||7.0||YES||YES|
|Pentax K-70 (⇒ lft | rgt)||optical||no||3.0||921||swivel||no||6000||6.0||YES||YES|
|Pentax K-3 (⇒ lft | rgt)||optical||YES||3.2||1037||fixed||no||8000||8.3||13||YES|
|Sony RX10 II (⇒ lft | rgt)||2359||YES||3.0||1229||tilting||no||3200||14.0||10.2||YES|
The K-3 II is a current model that online retailers, such as amazon, will have in stock. In contrast, the E-400 has been discontinued (but it 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.
So what conclusions can be drawn? Is the Olympus E-400 better than the Pentax K-3 II or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Olympus E-400:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Less heavy: Is lighter (by 365g or 46 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (36 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in September 2006).
Reasons to prefer the Pentax K-3 II:
- More detail: Has more megapixels (24.1 vs 10MP), which boosts linear resolution by 58%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- Easier setting verification: Has a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.2" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 215k dots).
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (8.3 vs 3 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (720 versus 500) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More modern: Reflects 8 years and 7 months of technical progress since the E-400 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the K-3 II is the clear winner of the contest (14 : 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.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the E-400 or the K-3 II handle or 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. This is why hands-on reviews by experts are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. The full reviews are available, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Olympus E-400 (⇒ rgt)||85/100||-||4/5||-||4/5||2006||699||discont.||check|
|Pentax K-3 II (⇒ lft)||-||-||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Nikon D40X (⇒ lft | rgt)||79/100||HiRec||4/5||reviewed||4/5||2007||729||discont.||check|
|Olympus E-620 (⇒ lft | rgt)||88/100||72/100 HiRec||4.5/5||reviewed||5/5||2009||699||discont.||check|
|Olympus E-450 (⇒ lft | rgt)||-||-||4/5||-||4/5||2009||499||discont.||check|
|Olympus E-420 (⇒ lft | rgt)||85/100||HiRec||4/5||reviewed||4.5/5||2008||599||discont.||check|
|Olympus E-410 (⇒ lft | rgt)||86/100||HiRec||4/5||reviewed||4.5/5||2007||699||discont.||check|
|Olympus E-510 (⇒ lft | rgt)||89/100||HiRec||3.5/5||reviewed||4.5/5||2007||799||discont.||check|
|Olympus E-330 (⇒ lft | rgt)||-||Rec||reviewed||3.5/5||-||2006||999||discont.||check|
|Olympus E-500 (⇒ lft | rgt)||76/100||HiRec||-||-||-||2005||599||discont.||check|
|Olympus E-300 (⇒ lft | rgt)||-||Rec||reviewed||reviewed||4.5/5||2004||799||discont.||check|
|Panasonic GX8 (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||4.5/5||2015||1,199||discont.||check|
|Panasonic L10 (⇒ lft | rgt)||85/100||Rec||3.5/5||reviewed||4/5||2007||599||discont.||check|
|Pentax KP (⇒ lft | rgt)||-||82/100 Silver||5/5||-||4.5/5||2017||1,099||latest||check|
|Pentax K-70 (⇒ lft | rgt)||-||79/100 Silver||4.5/5||4/5||4.5/5||2016||649||latest||check|
|Pentax K-3 (⇒ lft | rgt)||-||83/100 Gold||5/5||4.5/5||5/5||2013||1,299||discont.||check|
|Sony RX10 II (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||4.5/5||4/5||2015||1,299||discont.||check|
The above review scores should be interpreted with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If you do not see the camera that you are looking for, kindly get in touch, and I will try to add information on that model to the database.
- Canon 50D vs Panasonic GX8
- Canon 750D vs Canon G7 X Mark II
- Canon 750D vs Fujifilm X100T
- Canon 7D II vs Canon 6D Mark II
- Canon G1 X Mark III vs Pentax K-1 II
- Canon SL2 vs Canon 7D II
- Fujifilm X-Pro2 vs Panasonic GF7
- Nikon D1 vs Olympus E-M10 II
- Nikon D5000 vs Sony A6000
- Nikon D750 vs Nikon D80
- Panasonic FZ1000 vs Leica SL
- Sony A7 III vs Panasonic ZS200