Olympus E-M10 II versus Pentax K-70
The Olympus OM-D E-M10 Mark II and the Pentax K-70 are two digital cameras that were officially introduced, respectively, in August 2015 and June 2016. The E-M10 II is a mirrorless interchangeable lens camera, while the K-70 is a DSLR. The cameras are based on a Four Thirds (E-M10 II) and an APS-C (K-70) sensor. The Olympus has a resolution of 15.9 megapixel, whereas the Pentax provides 24 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: Olympus E-M10 II vs Pentax K-70
The side-by-side display below illustrates the physical size and weight of the Olympus E-M10 II and the Pentax K-70. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the E-M10 II – 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-70 is notably larger (18 percent) than the Olympus E-M10 II. Moreover, the K-70 is substantially heavier (76 percent) than the E-M10 II. It is noteworthy in this context that the K-70 is splash and dust-proof, while the E-M10 II 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 camera comparisons there.
|Camera Body Specifications
|Olympus E-M10 II (⇒ rgt)||120 mm||83 mm||47 mm||390 g||320||no||2015||799||discont.||check|
|Pentax K-70 (⇒ lft)||126 mm||93 mm||74 mm||688 g||410||YES||2016||649||latest||check|
|Olympus E-M10 III (⇒ lft | rgt)||122 mm||84 mm||50 mm||410 g||330||no||2017||649||latest||check|
|Olympus E-M1 II (⇒ lft | rgt)||134 mm||91 mm||67 mm||574 g||440||YES||2016||1,999||latest||check|
|Olympus PEN-F (⇒ lft | rgt)||125 mm||72 mm||37 mm||427 g||330||no||2016||1,199||latest||check|
|Olympus E-PL8 (⇒ lft | rgt)||115 mm||67 mm||38 mm||357 g||350||no||2016||549||discont.||check|
|Olympus E-M5 II (⇒ lft | rgt)||124 mm||85 mm||45 mm||469 g||310||YES||2015||1,099||latest||check|
|Olympus E-PL7 (⇒ lft | rgt)||115 mm||67 mm||38 mm||357 g||350||no||2014||599||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||119 mm||82 mm||46 mm||396 g||320||no||2014||699||discont.||check|
|Olympus E-P5 (⇒ lft | rgt)||122 mm||69 mm||37 mm||420 g||330||no||2013||999||discont.||check|
|Olympus E-PL5 (⇒ lft | rgt)||111 mm||64 mm||38 mm||325 g||360||no||2012||599||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||139 mm||98 mm||87 mm||725 g||410||YES||2017||1,999||latest||check|
|Panasonic GX80 (⇒ lft | rgt)||122 mm||71 mm||44 mm||426 g||290||no||2016||799||latest||check|
|Panasonic GM5 (⇒ lft | rgt)||99 mm||60 mm||36 mm||211 g||220||no||2014||749||discont.||check|
|Pentax KP (⇒ lft | rgt)||132 mm||101 mm||76 mm||703 g||390||YES||2017||1,099||latest||check|
|Pentax K-3 II (⇒ lft | rgt)||131 mm||100 mm||77 mm||800 g||720||YES||2015||1,099||latest||check|
|Pentax K-3 (⇒ lft | rgt)||131 mm||100 mm||77 mm||800 g||560||YES||2013||1,299||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 K-70 was launched at a somewhat lower price (by 19 percent) than the E-M10 II, which makes it more attractive for photographers on a tight budget. 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: Olympus E-M10 II vs Pentax K-70
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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.
Of the two cameras under consideration, the Olympus E-M10 II features a Four Thirds sensor and the Pentax K-70 an APS-C sensor. The sensor area in the K-70 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-M10 II has a native 4:3 aspect ratio, while the one in the K-70 offers a 3:2 aspect.
With 24MP, the K-70 offers a higher resolution than the E-M10 II (15.9MP), but the K-70 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 3.76μm for the E-M10 II) due to its larger sensor. Moreover, the K-70 is a somewhat more recent model (by 9 months) than the E-M10 II, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
Unlike the E-M10 II, the K-70 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).
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.
|Olympus E-M10 II (⇒ rgt)||Four Thirds||15.9||4608||3456||1080/60p||23.1||12.5||842||73|
|Pentax K-70 (⇒ lft)||APS-C||24.0||6000||4000||1080/60i||-||-||-||-|
|Olympus E-M10 III (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||4K/30p||..||..||..||..|
|Olympus E-M1 II (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|Olympus PEN-F (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||1080/60p||23.1||12.4||894||74|
|Olympus E-PL8 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||-||-||-||-|
|Olympus E-M5 II (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73|
|Olympus E-PL7 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.7||12.4||873||72|
|Olympus E-M10 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||884||72|
|Olympus E-P5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.4||895||72|
|Olympus E-PL5 (⇒ lft | rgt)||Four Thirds||15.9||4608||3456||1080/30p||22.8||12.3||889||72|
|Panasonic GH5 (⇒ lft | rgt)||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|Panasonic GX80 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||4K/30p||22.9||12.6||662||71|
|Panasonic GM5 (⇒ lft | rgt)||Four Thirds||15.8||4592||3448||1080/60p||22.1||11.7||721||66|
|Pentax KP (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||-||-||-||-|
|Pentax K-3 II (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|Pentax K-3 (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the E-M10 II provides a higher frame rate than the K-70. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.
Feature comparison: Olympus E-M10 II vs Pentax K-70
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M10 II has an electronic viewfinder (2360k dots), while the K-70 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 table below summarizes some of the other core capabilities of the Olympus E-M10 II and Pentax K-70 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-M10 II (⇒ rgt)||2360||no||3.0||1040||tilting||YES||4000||8.0||5.8||YES|
|Pentax K-70 (⇒ lft)||optical||no||3.0||921||swivel||no||6000||6.0||YES||YES|
|Olympus E-M10 III (⇒ lft | rgt)||2360||no||3.0||1040||tilting||YES||4000||8.6||5.8||YES|
|Olympus E-M1 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||18.0||no||YES|
|Olympus PEN-F (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||10.0||no||YES|
|Olympus E-PL8 (⇒ lft | rgt)||no||no||3.0||1037||tilting||YES||4000||8.0||no||YES|
|Olympus E-M5 II (⇒ lft | rgt)||2360||no||3.0||1037||swivel||YES||8000||10.0||no||YES|
|Olympus E-PL7 (⇒ lft | rgt)||no||no||3.0||1037||tilting||YES||4000||8.0||no||YES|
|Olympus E-M10 (⇒ lft | rgt)||1440||no||3.0||1037||tilting||YES||4000||8.0||5.8||YES|
|Olympus E-P5 (⇒ lft | rgt)||no||no||3.0||1037||tilting||YES||8000||9.0||7||YES|
|Olympus E-PL5 (⇒ lft | rgt)||no||no||3.0||460||tilting||YES||4000||8.0||no||YES|
|Panasonic GH5 (⇒ lft | rgt)||3680||no||3.2||1620||swivel||YES||8000||12.0||no||YES|
|Panasonic GX80 (⇒ lft | rgt)||2765||no||3.0||1040||tilting||YES||4000||8.0||6||YES|
|Panasonic GM5 (⇒ lft | rgt)||1166||no||3.0||921||fixed||YES||500||5.8||no||no|
|Pentax KP (⇒ lft | rgt)||optical||no||3.0||921||tilting||no||6000||7.0||YES||YES|
|Pentax K-3 II (⇒ lft | rgt)||optical||YES||3.2||1037||fixed||no||8000||8.3||no||YES|
|Pentax K-3 (⇒ lft | rgt)||optical||YES||3.2||1037||fixed||no||8000||8.3||13||YES|
The K-70 is a current model that online retailers, such as amazon, will have in stock. In contrast, the E-M10 II has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the E-M10 II was succeeded by the Olympus E-M10 III.
Review summary: Olympus E-M10 II vs Pentax K-70
So what conclusions can be drawn? Is the Olympus E-M10 II better than the Pentax K-70 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Olympus OM-D E-M10 Mark II:
- Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (8 vs 6 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (120x83mm vs 126x93mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 298g or 43 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- More heavily discounted: Has been on the market for longer (launched in August 2015).
Advantages of the Pentax K-70:
- More detail: Has more megapixels (24 vs 15.9MP), which boosts linear resolution by 25%.
- 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.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (6000/sec vs 4000/sec) to freeze action.
- Longer lasting: Gets more shots (410 versus 320) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- More affordable: Was released into a lower priced segment (19 percent cheaper at launch).
- More modern: Was introduced somewhat (9 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the K-70 comes out slightly ahead of the E-M10 II (10 : 9 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 E-M10 II and the K-70 in practical situations. 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 expert reviews are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Olympus E-M10 II (⇒ rgt)||HiRec||80/100 Silver||5/5||5/5||5/5||2015||799||discont.||check|
|Pentax K-70 (⇒ lft)||-||79/100 Silver||4.5/5||4/5||4.5/5||2016||649||latest||check|
|Olympus E-M10 III (⇒ lft | rgt)||Rec||80/100||4.5/5||..||4.5/5||2017||649||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 PEN-F (⇒ lft | rgt)||-||82/100 Silver||4.5/5||4.5/5||5/5||2016||1,199||latest||check|
|Olympus E-PL8 (⇒ lft | rgt)||-||-||4.5/5||-||4/5||2016||549||discont.||check|
|Olympus E-M5 II (⇒ lft | rgt)||HiRec||81/100 Silver||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Olympus E-PL7 (⇒ lft | rgt)||Rec||-||5/5||4.5/5||4/5||2014||599||discont.||check|
|Olympus E-M10 (⇒ lft | rgt)||-||80/100 Gold||5/5||4.5/5||5/5||2014||699||discont.||check|
|Olympus E-P5 (⇒ lft | rgt)||HiRec||78/100 Silver||4.5/5||4.5/5||5/5||2013||999||discont.||check|
|Olympus E-PL5 (⇒ lft | rgt)||HiRec||-||4.5/5||4.5/5||4.5/5||2012||599||discont.||check|
|Panasonic GH5 (⇒ lft | rgt)||HiRec||85/100 Gold||4.5/5||5/5||5/5||2017||1,999||latest||check|
|Panasonic GX80 (⇒ lft | rgt)||HiRec||82/100 Silver||5/5||4.5/5||5/5||2016||799||latest||check|
|Panasonic GM5 (⇒ lft | rgt)||Rec||77/100 Silver||5/5||5/5||4.5/5||2014||749||discont.||check|
|Pentax KP (⇒ lft | rgt)||-||82/100 Silver||5/5||-||4.5/5||2017||1,099||latest||check|
|Pentax K-3 II (⇒ lft | rgt)||-||-||5/5||4.5/5||5/5||2015||1,099||latest||check|
|Pentax K-3 (⇒ lft | rgt)||-||83/100 Gold||5/5||4.5/5||5/5||2013||1,299||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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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