Pentax K-1 versus Olympus E-1
The Pentax K-1 and the Olympus E-1 are two digital cameras that were officially introduced, respectively, in February 2016 and June 2003. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (K-1) and a Four Thirds (E-1) sensor. The Pentax has a resolution of 36.2 megapixel, whereas the Olympus provides 4.9 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.
Body comparison: Pentax K-1 vs Olympus E-1
The side-by-side display below illustrates the physical size and weight of the Pentax K-1 and the Olympus E-1. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures 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 side – the K-1 – represents the basis for the calculations 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 Olympus E-1 is somewhat smaller (3 percent) than the Pentax K-1. Moreover, the E-1 is markedly lighter (27 percent) than the K-1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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 camera comparisons there.
|Camera Body Specifications
|Pentax K-1 (⇒ rgt)||137 mm||110 mm||86 mm||1010 g||760||YES||2016||1,799||latest||check|
|Olympus E-1 (⇒ lft)||141 mm||104 mm||81 mm||738 g||750||YES||2003||1,699||discont.||check|
|Canon 5D Mark IV (⇒ lft | rgt)||151 mm||116 mm||76 mm||890 g||900||YES||2016||3,499||latest||check|
|Leica Digilux 3 (⇒ lft | rgt)||146 mm||87 mm||77 mm||606 g||750||no||2006||1,499||discont.||check|
|Nikon D500 (⇒ lft | rgt)||147 mm||115 mm||81 mm||860 g||1240||YES||2016||1,999||latest||check|
|Olympus E-M1 II (⇒ lft | rgt)||134 mm||91 mm||67 mm||574 g||440||YES||2016||1,999||latest||check|
|Olympus E-5 (⇒ lft | rgt)||142 mm||117 mm||75 mm||873 g||750||YES||2010||1,699||discont.||check|
|Olympus E-3 (⇒ lft | rgt)||142 mm||116 mm||75 mm||876 g||750||YES||2007||1,699||discont.||check|
|Olympus E-330 (⇒ lft | rgt)||140 mm||87 mm||72 mm||637 g||750||no||2006||999||discont.||check|
|Olympus E-300 (⇒ lft | rgt)||147 mm||85 mm||64 mm||624 g||750||no||2004||799||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||139 mm||98 mm||87 mm||725 g||410||YES||2017||1,999||latest||check|
|Pentax K-1 II (⇒ lft | rgt)||137 mm||110 mm||86 mm||1010 g||670||YES||2018||1,999||latest||check|
|Pentax K-3 II (⇒ lft | rgt)||131 mm||100 mm||77 mm||800 g||720||YES||2015||1,099||latest||check|
|Sony A7R III (⇒ lft | rgt)||127 mm||96 mm||74 mm||650 g||650||YES||2017||3,199||latest||check|
|Sony A99 II (⇒ lft | rgt)||143 mm||104 mm||76 mm||849 g||490||YES||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||127 mm||96 mm||60 mm||625 g||290||YES||2015||3,199||discont.||check|
|Sony A850 (⇒ lft | rgt)||156 mm||117 mm||82 mm||895 g||880||YES||2009||1,999||discont.||check|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The E-1 was somewhat cheaper (by 6 percent) than the K-1 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Pentax K-1 vs Olympus E-1
The size of the sensor inside a digital camera is one of the key determinants 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Pentax K-1 features a full frame sensor and the Olympus E-1 a Four Thirds sensor. The sensor area in the E-1 is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the K-1 has a native 3:2 aspect ratio, while the one in the E-1 offers a 4:3 aspect.
With 36.2MP, the K-1 offers a higher resolution than the E-1 (4.9MP), but the K-1 has smaller individual pixels (pixel pitch of 4.88μm versus 6.78μm for the E-1). However, the K-1 is a somewhat more recent model (by 12 years and 7 months) than the E-1, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the K-1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
Unlike the E-1, the K-1 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 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.
|Pentax K-1 (⇒ rgt)||Full Frame||36.2||7360||4912||1080/60i||25.4||14.6||3280||96|
|Olympus E-1 (⇒ lft)||Four Thirds||4.9||2560||1920||no||-||-||-||-|
|Canon 5D Mark IV (⇒ lft | rgt)||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|Leica Digilux 3 (⇒ lft | rgt)||Four Thirds||7.4||3136||2352||no||-||-||-||-|
|Nikon D500 (⇒ lft | rgt)||APS-C||20.7||5568||3712||4K/30p||24.0||14.0||1324||83|
|Olympus E-M1 II (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|Olympus E-5 (⇒ lft | rgt)||Four Thirds||12.2||4032||3024||720/30p||21.6||10.5||519||56|
|Olympus E-3 (⇒ lft | rgt)||Four Thirds||10.0||3648||2736||no||21.6||10.5||571||56|
|Olympus E-330 (⇒ lft | rgt)||Four Thirds||7.4||3136||2352||no||-||-||-||-|
|Olympus E-300 (⇒ lft | rgt)||Four Thirds||8.0||3264||2448||no||-||-||-||-|
|Panasonic GH5 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Pentax K-1 II (⇒ lft | rgt)||Full Frame||36.2||7360||4912||1080/60i||..||..||..||..|
|Pentax K-3 II (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|Sony A7R III (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100|
|Sony A99 II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A7R II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|Sony A850 (⇒ lft | rgt)||Full Frame||24.4||6048||4032||no||23.8||12.2||1415||79|
Many modern cameras cannot only take still pictures, but also record videos. The K-1 indeed provides movie recording capabilities, while the E-1 does not. The highest resolution format that the K-1 can use is 1080/60i.
Feature comparison: Pentax K-1 vs Olympus E-1
Apart from body and sensor, cameras can and do differ across a range of features. The K-1 and the E-1 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 following table reports on some other key feature differences and similarities of the Pentax K-1, the Olympus E-1, and comparable cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Pentax K-1 (⇒ rgt)||optical||YES||3.2||1037||full-flex||no||8000||4.4||no||YES|
|Olympus E-1 (⇒ lft)||optical||YES||1.8||134||fixed||no||4000||3.0||no||no|
|Canon 5D Mark IV (⇒ lft | rgt)||optical||YES||3.2||1620||fixed||YES||8000||7.0||no||no|
|Leica Digilux 3 (⇒ lft | rgt)||optical||no||2.5||207||fixed||no||4000||3.0||13||no|
|Nikon D500 (⇒ lft | rgt)||optical||YES||3.2||2359||tilting||YES||8000||10.0||no||no|
|Olympus E-M1 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||18.0||no||YES|
|Olympus E-5 (⇒ lft | rgt)||optical||YES||3.0||920||swivel||no||8000||5.0||13||YES|
|Olympus E-3 (⇒ lft | rgt)||optical||YES||2.5||230||swivel||no||8000||5.0||13||YES|
|Olympus E-330 (⇒ lft | rgt)||optical||no||2.5||215||tilting||no||4000||3.0||13||no|
|Olympus E-300 (⇒ lft | rgt)||optical||no||1.8||134||fixed||no||4000||2.5||11||no|
|Panasonic GH5 (⇒ lft | rgt)||3680||no||3.2||1620||swivel||YES||8000||12.0||no||YES|
|Pentax K-1 II (⇒ lft | rgt)||optical||YES||3.2||1037||full-flex||no||8000||4.4||no||YES|
|Pentax K-3 II (⇒ lft | rgt)||optical||YES||3.2||1037||fixed||no||8000||8.3||no||YES|
|Sony A7R III (⇒ lft | rgt)||3686||no||3.0||1440||tilting||YES||8000||10.0||no||YES|
|Sony A99 II (⇒ lft | rgt)||2400||YES||3.0||1229||full-flex||no||8000||12.0||no||YES|
|Sony A7R II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A850 (⇒ lft | rgt)||optical||YES||3.0||922||fixed||no||8000||3.0||no||YES|
The K-1 is a current model that online retailers, such as amazon, will have in stock. In contrast, the E-1 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-1 was succeeded by the Olympus E-3.
Review summary: Pentax K-1 vs Olympus E-1
So what conclusions can be drawn? Is there a clear favorite between the Pentax K-1 and the Olympus E-1? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Pentax K-1:
- More detail: Offers more megapixels (36.2 vs 4.9MP) with a 177% higher linear resolution.
- 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: Features a larger and more technologically advanced imaging sensor.
- Broader imaging potential: Can record not only still images but also 1080/60i movies.
- Larger screen: Has a bigger rear LCD (3.2" vs 1.8") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 134k dots).
- More flexible LCD: Has full-flex screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (4.4 vs 3 flaps/sec) to capture the decisive moment.
- Sharper images: Has hand-shake reducing image stabilization build-in.
- More modern: Reflects 12 years and 7 months of technical progress since the E-1 launch.
Reasons to prefer the Olympus E-1:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Less heavy: Has a lower weight (by 272g or 27 percent) and is thus easier to take along.
- More heavily discounted: Has been around for much longer (launched in June 2003).
If the count of relative strengths (bullet points above) is taken as a measure, the K-1 is the clear winner of the match-up (12 : 3 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the K-1 and the E-1 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is why hands-on reviews by experts are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. The detailed reviews can be accessed, respectively, on the websites of cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Pentax K-1 (⇒ rgt)||-||84/100 Silver||5/5||4.5/5||5/5||2016||1,799||latest||check|
|Olympus E-1 (⇒ lft)||-||Rec||reviewed||reviewed||-||2003||1,699||discont.||check|
|Canon 5D Mark IV (⇒ lft | rgt)||HiRec||87/100 Gold||4.5/5||5/5||4.5/5||2016||3,499||latest||check|
|Leica Digilux 3 (⇒ lft | rgt)||-||-||-||-||-||2006||1,499||discont.||check|
|Nikon D500 (⇒ lft | rgt)||HiRec||91/100 Gold||4.5/5||5/5||5/5||2016||1,999||latest||check|
|Olympus E-M1 II (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||4.5/5||2016||1,999||latest||check|
|Olympus E-5 (⇒ lft | rgt)||-||75/100||4/5||-||4.5/5||2010||1,699||discont.||check|
|Olympus E-3 (⇒ lft | rgt)||88/100||HiRec||reviewed||reviewed||4/5||2007||1,699||discont.||check|
|Olympus E-330 (⇒ lft | rgt)||-||Rec||reviewed||3.5/5||-||2006||999||discont.||check|
|Olympus E-300 (⇒ lft | rgt)||-||Rec||reviewed||reviewed||4.5/5||2004||799||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||5/5||2017||1,999||latest||check|
|Pentax K-1 II (⇒ lft | rgt)||-||79/100||4.5/5||..||4.5/5||2018||1,999||latest||check|
|Pentax K-3 II (⇒ lft | rgt)||-||-||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Sony A7R III (⇒ lft | rgt)||HiRec||90/100 Gold||4.5/5||5/5||5/5||2017||3,199||latest||check|
|Sony A99 II (⇒ lft | rgt)||-||85/100 Silver||4.5/5||4.5/5||4.5/5||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||HiRec||90/100 Gold||5/5||4.5/5||5/5||2015||3,199||discont.||check|
|Sony A850 (⇒ lft | rgt)||-||75/100||-||4/5||4.5/5||2009||1,999||discont.||check|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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
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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, kindly get in touch, and I will try to locate and add the respective data to the application.
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