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Olympus E-M1 II vs Pentax K-70

The Olympus OM-D E-M1 Mark II and the Pentax K-70 are two digital cameras that were announced, respectively, in September 2016 and June 2016. The E-M1 II is a mirrorless interchangeable lens camera, while the K-70 is a DSLR. The cameras are based on a Four Thirds (E-M1 II) and an APS-C (K-70) sensor. The Olympus has a resolution of 20.2 megapixels, whereas the Pentax provides 24 MP.

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

Headline Specifications
Olympus E-M1 II
versus
Pentax K-70
Olympus E-M1 II   Pentax K-70
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Pentax K mount lenses
20.2 MP – Four Thirds sensor 24 MP – APS-C sensor
4K/30p Video 1080/60i Video
ISO 200-25,600 ISO 100-102,400
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD – 1037k dots 3.0" LCD – 921k dots
Swivel touchscreen Swivel screen (not touch-sensitive)
18 shutter flaps per second 6 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
440 shots per battery charge410 shots per battery charge
134 x 91 x 67 mm, 574 g 126 x 93 x 74 mm, 688 g
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Check E-M1 II offers at
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Check K-70 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M1 Mark II and the Pentax K-70? 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.

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Body comparison

An illustration of the physical size and weight of the Olympus E-M1 II and the Pentax K-70 is provided in the side-by-side display below. 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 width, height and depth measures are rounded to the nearest millimeter.

The K-70 can be obtained in two different colors (black, silver), while the E-M1 II is only available in black.

Size Olympus E-M1 II vs Pentax K-70
Compare E-M1 II versus K-70 top
Comparison E-M1 II or K-70 rear

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 somewhat smaller (4 percent) than the Olympus E-M1 II. However, the K-70 is markedly heavier (20 percent) than the E-M1 II. 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 and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the E-M1 II gets 440 shots out of its Olympus BLH-1 battery, while the K-70 can take 410 images on a single charge of its Pentax D-LI109 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 US$ 1 999ebay.com
2.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 US$ 649ebay.com
3.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 US$ 1 399ebay.com
4.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 US$ 1 799ebay.com
5.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 US$ 1 199ebay.com
6.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 US$ 2 199ebay.com
7.
 
OM System OM-1 II 135 mm 92 mm 73 mm 599 g 500 Y Jan 2024 US$ 2 399 amazon.com
8.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 US$ 1 699ebay.com
9.
 
Panasonic G85 128 mm 89 mm 74 mm 505 g 330 Y Sep 2016 US$ 899ebay.com
10.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 US$ 1 999ebay.com
11.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 US$ 1 699 amazon.com
12.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 US$ 1 199ebay.com
13.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 US$ 1 099ebay.com
14.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 US$ 1 999 amazon.com
15.
 
Pentax K-50 130 mm 97 mm 71 mm 650 g 410 Y Jun 2013 US$ 599ebay.com
16.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 US$ 1 099ebay.com
17.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 US$ 749ebay.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 obviously take relative prices into account. 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 K-70 was launched at a markedly lower price (by 68 percent) than the E-M1 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Olympus E-M1 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-M1 II has a native 4:3 aspect ratio, while the one in the K-70 offers a 3:2 aspect.

Olympus E-M1 II and Pentax K-70 sensor measures

With 24MP, the K-70 offers a higher resolution than the E-M1 II (20.2MP), but the K-70 nevertheless has larger individual pixels (pixel pitch of 3.91μm versus 3.34μm for the E-M1 II) due to its larger sensor. However, the E-M1 II is a somewhat more recent model (by 3 months) than the K-70, and its sensor might 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Pentax K-70 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-70 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Olympus E-M1 II are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

Both cameras have the capacity to capture high quality composite images by combining multiple shots after shifting the sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Olympus OM-D E-M1 Mark II has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 64-25600. The corresponding ISO settings for the Pentax K-70 are ISO 100 to ISO 102400 (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.

E-M1 II versus K-70 MP

For many 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 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
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
2.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
3.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
4.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
5.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
6.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
7.
 
OM System OM-1 II Four Thirds 20.2 5184 38884K/60p23.413.6174978
8.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
9.
 
Panasonic G85 Four Thirds 15.8 4592 34484K/30p22.812.565671
10.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
11.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
12.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
13.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
14.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
15.
 
Pentax K-50 APS-C 16.1 4928 32641080/30p23.713.0112079
16.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
17.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p23.612.9151479
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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the E-M1 II provides a higher video resolution than the K-70. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M1 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the E-M1 II has a higher magnification than the one of the K-70 (0.74x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Olympus E-M1 II and Pentax K-70 in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty 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-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
2.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
3.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
4.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
5.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
6.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
7.
 
OM System OM-1 II5760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
8.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
9.
 
Panasonic G852360 n3.0 / 1040 swivel Y 1/4000s 9.0/s Y Y
10.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
11.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
12.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
13.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
14.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
15.
 
Pentax K-50optical n3.0 / 921 fixed n 1/6000s 6.0/s Y Y
16.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
17.
 
Pentax K-S2optical n3.0 / 921 swivel n 1/6000s 5.4/s Y Y
Note: *) 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-M1 II has a touchscreen, while the K-70 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

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-M1 II 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-M1 II and the Pentax K-70 both have 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.

Concerning the storage of imaging data, both the E-M1 II and the K-70 write their files to SDXC cards. The E-M1 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the K-70 only has one slot. The E-M1 II supports UHS-II cards (on its first slot), while the K-70 can use UHS-I cards.

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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 OM-D E-M1 Mark II and Pentax K-70 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
2.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
3.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
4.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
5.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
6.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
7.
 
OM System OM-1 IIYstereo / monoYYmicro3.0Y-Y
8.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
9.
 
Panasonic G85Ystereo / monoY-micro2.0Y--
10.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
11.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
12.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
13.
 
Pentax K-3 IIYmono / monoYYmini3.0---
14.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
15.
 
Pentax K-50Ymono / mono--micro2.0---
16.
 
Pentax KPYstereo / monoY--2.0Y--
17.
 
Pentax K-S2Ymono / monoY-micro2.0YY-

It is notable that the E-M1 II has a headphone jack, which is not present on the K-70 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Olympus E-M1 II (unlike the K-70) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-M1 II and the K-70 have been discontinued, but can regularly be found used on ebay. The E-M1 II was replaced by the Olympus E-M1 III, while the K-70 does not have a direct successor. Further information on the features and operation of the E-M1 II and K-70 can be found, respectively, in the Olympus E-M1 II Manual (free pdf) or the online Pentax K-70 Manual.

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Review summary

So what conclusions can be drawn? Is the Olympus E-M1 II better than the Pentax K-70 or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Olympus OM-D E-M1 Mark II:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.74x vs 0.63x).
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 921k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/6000s) to freeze action.
  • Faster burst: Shoots at higher frequency (18 vs 6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Less heavy: Is lighter (by 114g or 17 percent) and hence easier to carry around.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Is somewhat more recent (announced 3 months after the K-70).

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Reasons to prefer the Pentax K-70:

  • More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (68 percent cheaper at launch).
  • More heavily discounted: Has been on the market for longer (launched in June 2016).

If the number of relative strengths (bullet points above) is taken as a guide, the E-M1 II is the clear winner of the match-up (16 : 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. 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-M1 II 16:09 K-70

How about other alternatives? Do the specifications of the Olympus E-M1 II and the Pentax K-70 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

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-M1 II or the K-70 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.

Expert reviews

This is why hands-on reviews by experts 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 US$ 1 999ebay.com
2.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 US$ 649ebay.com
3.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 US$ 1 399ebay.com
4.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 US$ 1 799ebay.com
5.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 US$ 1 199ebay.com
6.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 US$ 2 199ebay.com
7.
 
OM System OM-1 II............ Jan 2024 US$ 2 399 amazon.com
8.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 US$ 1 699ebay.com
9.
 
Panasonic G85..+ +..84/1005/54.5/5 Sep 2016 US$ 899ebay.com
10.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 US$ 1 999ebay.com
11.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 US$ 1 699 amazon.com
12.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 US$ 1 199ebay.com
13.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 US$ 1 099ebay.com
14.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 US$ 1 999 amazon.com
15.
 
Pentax K-505/5......5/54.5/5 Jun 2013 US$ 599ebay.com
16.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 US$ 1 099ebay.com
17.
 
Pentax K-S24.5/5......5/54.5/5 Feb 2015 US$ 749ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? 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.

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    Specifications: Olympus E-M1 II vs Pentax K-70

    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-M1 II Pentax K-70
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Pentax K mount lenses
    Launch Date September 2016 June 2016
    Launch Price USD 1,999 USD 649
    Sensor Specs Olympus E-M1 II Pentax K-70
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor APS-C Sensor
    Sensor Size 17.3 x 13.0 mm 23.5 x 15.6 mm
    Sensor Area 224.9 mm2 366.6 mm2
    Sensor Diagonal 21.6 mm 28.2 mm
    Crop Factor 2.0x 1.5x
    Sensor Resolution 20.2 Megapixels 24 Megapixels
    Image Resolution 5184 x 3888 pixels 6000 x 4000 pixels
    Pixel Pitch 3.34 μm 3.91 μm
    Pixel Density 8.96 MP/cm2 6.55 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 200 - 25,600 ISO 100 - 102,400 ISO
    ISO Boost 64 - 25,600 ISO no Enhancement
    Image Processor TruePic VIII PRIME MII
    DXO Sensor Quality (score) 80 ..
    DXO Color Depth (bits) 23.7 ..
    DXO Dynamic Range (EV) 12.8 ..
    DXO Low Light (ISO) 1312 ..
    Screen Specs Olympus E-M1 II Pentax K-70
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.74x 0.63x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1037k dots 921k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M1 II Pentax K-70
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/6000s
    Continuous Shooting 18 shutter flaps/s 6 shutter flaps/s
    Shutter Life Expectancy200 000 actuations100 000 actuations
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Single UHS-II UHS-I
    Connectivity Specs Olympus E-M1 II Pentax K-70
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Body Specs Olympus E-M1 II Pentax K-70
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Olympus BLH-1 Pentax D-LI109
    Battery Life (CIPA)440 shots per charge410 shots per charge
    Body Dimensions 134 x 91 x 67 mm
    (5.3 x 3.6 x 2.6 in)
    126 x 93 x 74 mm
    (5.0 x 3.7 x 2.9 in)
    Camera Weight 574 g (20.2 oz) 688 g (24.3 oz)
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