Olympus E-3 vs Pentax K-70
The Olympus E-3 and the Pentax K-70 are two digital cameras that were officially introduced, respectively, in October 2007 and June 2016. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a Four Thirds (E-3) and an APS-C (K-70) sensor. The Olympus has a resolution of 10 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus E-3 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.
Body comparison
An illustration of the physical size and weight of the Olympus E-3 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 perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
The K-70 can be obtained in two different colors (black, silver), while the E-3 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 Pentax K-70 is notably smaller (29 percent) than the Olympus E-3. Moreover, the K-70 is markedly lighter (21 percent) than the E-3. 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-3 gets 750 shots out of its Olympus BLM-1 battery, while the K-70 can take 410 images on a single charge of its Pentax D-LI109 power pack.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-3 | 142 mm | 116 mm | 75 mm | 876 g | 750 | Y | Oct 2007 | US$ 1 699 | ebay.com | |
2. | Pentax K-70 | 126 mm | 93 mm | 74 mm | 688 g | 410 | Y | Jun 2016 | US$ 649 | ebay.com | |
3. | Nikon D300 | 147 mm | 114 mm | 74 mm | 925 g | 1000 | Y | Aug 2007 | US$ 1 799 | ebay.com | |
4. | Olympus E-1 | 141 mm | 104 mm | 81 mm | 738 g | 750 | Y | Jun 2003 | US$ 1 699 | ebay.com | |
5. | Olympus E-5 | 142 mm | 117 mm | 75 mm | 873 g | 750 | Y | Sep 2010 | US$ 1 699 | ebay.com | |
6. | Olympus E-30 | 142 mm | 108 mm | 75 mm | 701 g | 750 | n | Nov 2008 | US$ 1 299 | ebay.com | |
7. | Olympus E-410 | 130 mm | 91 mm | 53 mm | 435 g | 500 | n | Mar 2007 | US$ 699 | ebay.com | |
8. | Olympus E-420 | 130 mm | 91 mm | 53 mm | 440 g | 500 | n | Mar 2008 | US$ 599 | ebay.com | |
9. | Olympus E-510 | 136 mm | 92 mm | 68 mm | 538 g | 750 | n | Mar 2007 | US$ 799 | ebay.com | |
10. | Olympus E-520 | 136 mm | 92 mm | 68 mm | 535 g | 750 | n | May 2008 | US$ 699 | ebay.com | |
11. | Olympus E-600 | 130 mm | 94 mm | 60 mm | 535 g | 500 | n | Aug 2009 | US$ 449 | ebay.com | |
12. | Olympus E-620 | 130 mm | 94 mm | 60 mm | 521 g | 500 | n | Feb 2009 | US$ 699 | ebay.com | |
13. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | US$ 1 099 | ebay.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$ 599 | ebay.com | |
16. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | US$ 1 099 | ebay.com | |
17. | Pentax K-S2 | 123 mm | 91 mm | 73 mm | 678 g | 410 | Y | Feb 2015 | US$ 749 | ebay.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 62 percent) than the E-3, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 imaging sensor is a crucial determinant 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. 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-3 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-3 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-3 (10MP), but the K-70 has smaller individual pixels (pixel pitch of 3.91μm versus 4.74μm for the E-3). Yet, the K-70 is a much more recent model (by 8 years and 7 months) than the E-3, 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-70 has no anti-alias filter installed, so that it can capture all the detail its 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-3 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 K-70 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the E-3, 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).
The Olympus E-3 has a native sensitivity range from ISO 100 to ISO 3200. 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.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-3 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.6 | 10.5 | 571 | 56 | |
2. | Pentax K-70 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 23.8 | 13.1 | 1639 | 80 | |
3. | Nikon D300 | APS-C | 12.2 | 4288 | 2848 | none | 22.1 | 12.0 | 679 | 67 | |
4. | Olympus E-1 | Four Thirds | 4.9 | 2560 | 1920 | none | 20.0 | 9.7 | -145 | 44 | |
5. | Olympus E-5 | Four Thirds | 12.2 | 4032 | 3024 | 720/30p | 21.6 | 10.5 | 519 | 56 | |
6. | Olympus E-30 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.4 | 530 | 55 | |
7. | Olympus E-410 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.1 | 10.0 | 494 | 51 | |
8. | Olympus E-420 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.4 | 527 | 56 | |
9. | Olympus E-510 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.2 | 10.0 | 442 | 52 | |
10. | Olympus E-520 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.4 | 10.4 | 548 | 55 | |
11. | Olympus E-600 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.5 | 10.3 | 541 | 55 | |
12. | Olympus E-620 | Four Thirds | 12.2 | 4032 | 3024 | none | 21.3 | 10.3 | 536 | 55 | |
13. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
14. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
15. | Pentax K-50 | APS-C | 16.1 | 4928 | 3264 | 1080/30p | 23.7 | 13.0 | 1120 | 79 | |
16. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
17. | Pentax K-S2 | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 23.6 | 12.9 | 1514 | 79 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras cannot only take still pictures, but also record videos. The K-70 indeed provides for movie recording, while the E-3 does not. The highest resolution format that the K-70 can use is 1080/60i.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. The E-3 and the K-70 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the K-70 has a higher magnification than the one of the E-3 (0.63x vs 0.58x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Olympus E-3 and Pentax K-70 along with similar information for a selection of comparators.
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-3 | optical | Y | 2.5 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
2. | Pentax K-70 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 6.0/s | Y | Y | |
3. | Nikon D300 | optical | Y | 3.0 / 922 | fixed | n | 1/8000s | 6.0/s | Y | n | |
4. | Olympus E-1 | optical | Y | 1.8 / 134 | fixed | n | 1/4000s | 3.0/s | n | n | |
5. | Olympus E-5 | optical | Y | 3.0 / 920 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
6. | Olympus E-30 | optical | Y | 2.7 / 230 | swivel | n | 1/8000s | 5.0/s | Y | Y | |
7. | Olympus E-410 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | n | |
8. | Olympus E-420 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | n | |
9. | Olympus E-510 | optical | n | 2.5 / 215 | fixed | n | 1/4000s | 3.0/s | Y | Y | |
10. | Olympus E-520 | optical | n | 2.7 / 215 | fixed | n | 1/4000s | 3.5/s | Y | Y | |
11. | Olympus E-600 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
12. | Olympus E-620 | optical | n | 2.7 / 230 | swivel | n | 1/4000s | 4.0/s | Y | Y | |
13. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
14. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
15. | Pentax K-50 | optical | n | 3.0 / 921 | fixed | n | 1/6000s | 6.0/s | Y | Y | |
16. | Pentax KP | optical | n | 3.0 / 921 | tilting | n | 1/6000s | 7.0/s | Y | Y | |
17. | Pentax K-S2 | optical | n | 3.0 / 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 feature that is present on the E-3, but is missing on the K-70 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
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 Pentax K-70 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-3 writes its imaging data to Compact Flash or xD Picture cards, while the K-70 uses SDXC cards. The E-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the K-70 only has one slot.
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 E-3 and Pentax K-70 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-3 | Y | - / - | - | - | - | 2.0 | - | - | - | |
2. | Pentax K-70 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
3. | Nikon D300 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
4. | Olympus E-1 | Y | - / - | - | - | - | 2.0 | - | - | - | |
5. | Olympus E-5 | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
6. | Olympus E-30 | Y | - / - | - | - | - | 2.0 | - | - | - | |
7. | Olympus E-410 | Y | - / - | - | - | - | 2.0 | - | - | - | |
8. | Olympus E-420 | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Olympus E-510 | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Olympus E-520 | Y | - / - | - | - | - | 2.0 | - | - | - | |
11. | Olympus E-600 | Y | - / - | - | - | - | 2.0 | - | - | - | |
12. | Olympus E-620 | Y | - / - | - | - | - | 2.0 | - | - | - | |
13. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
14. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
15. | Pentax K-50 | Y | mono / mono | - | - | micro | 2.0 | - | - | - | |
16. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - | |
17. | Pentax K-S2 | Y | mono / mono | Y | - | micro | 2.0 | Y | Y | - |
It is notable that the K-70 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-3 does not provide wifi capability.
Studio photographers will appreciate that the Olympus E-3 (unlike the K-70) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the E-3 and the K-70 have been discontinued, but can regularly be found used on ebay. The E-3 was replaced by the Olympus E-5, while the K-70 does not have a direct successor. Further information on the features and operation of the E-3 and K-70 can be found, respectively, in the Olympus E-3 Manual (free pdf) or the online Pentax K-70 Manual.
Review summary
So what is the bottom line? Which of the two cameras – the Olympus E-3 or the Pentax K-70 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Advantages of the Olympus E-3:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/6000s) to freeze action.
- Longer lasting: Can take more shots (750 versus 410) on a single battery charge.
- 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.
- More heavily discounted: Has been available for much longer (launched in October 2007).
Arguments in favor of the Pentax K-70:
- More detail: Has more megapixels (24 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.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.58x).
- 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 (921k vs 230k dots).
- Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (126x93mm vs 142x116mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 188g or 21 percent) and is thus easier to take along.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- More affordable: Was introduced into a lower priced category (62 percent cheaper at launch).
- More modern: Reflects 8 years and 7 months of technical progress since the E-3 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the K-70 is the clear winner of the contest (19 : 7 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.
How about other alternatives? Do the specifications of the Olympus E-3 and the Pentax K-70 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-3 or the K-70. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews
This is where reviews by experts come in. 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Olympus E-3 | .. | 88/100 | .. | + + | o | 4/5 | Oct 2007 | US$ 1 699 | ebay.com | |
2. | Pentax K-70 | 4.5/5 | .. | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Jun 2016 | US$ 649 | ebay.com | |
3. | Nikon D300 | .. | + + | .. | + + | 5/5 | 4.5/5 | Aug 2007 | US$ 1 799 | ebay.com | |
4. | Olympus E-1 | .. | .. | .. | + | o | .. | Jun 2003 | US$ 1 699 | ebay.com | |
5. | Olympus E-5 | 4/5 | .. | .. | 75/100 | 4/5 | 4.5/5 | Sep 2010 | US$ 1 699 | ebay.com | |
6. | Olympus E-30 | .. | .. | .. | 71/100 | 4.5/5 | 4/5 | Nov 2008 | US$ 1 299 | ebay.com | |
7. | Olympus E-410 | .. | 86/100 | .. | + + | 4/5 | 4.5/5 | Mar 2007 | US$ 699 | ebay.com | |
8. | Olympus E-420 | .. | 85/100 | .. | + + | 4/5 | 4.5/5 | Mar 2008 | US$ 599 | ebay.com | |
9. | Olympus E-510 | .. | 89/100 | .. | + + | 3.5/5 | 4.5/5 | Mar 2007 | US$ 799 | ebay.com | |
10. | Olympus E-520 | .. | 87/100 | .. | + + | 4.5/5 | 4.5/5 | May 2008 | US$ 699 | ebay.com | |
11. | Olympus E-600 | .. | .. | .. | .. | .. | 4.5/5 | Aug 2009 | US$ 449 | ebay.com | |
12. | Olympus E-620 | 3/5 | 88/100 | .. | 72/100 | 4.5/5 | 5/5 | Feb 2009 | US$ 699 | ebay.com | |
13. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | US$ 1 099 | ebay.com | |
14. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | US$ 1 999 | amazon.com | |
15. | Pentax K-50 | 5/5 | .. | .. | .. | 5/5 | 4.5/5 | Jun 2013 | US$ 599 | ebay.com | |
16. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | US$ 1 099 | ebay.com | |
17. | Pentax K-S2 | 4.5/5 | .. | .. | .. | 5/5 | 4.5/5 | Feb 2015 | US$ 749 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted 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 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.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
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- Contax N Digital vs Olympus E-3
- Fujifilm X-M1 vs Olympus E-3
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- Leica D-LUX 6 vs Olympus E-3
- Leica X Typ 113 vs Pentax K-70
- Nikon D5600 vs Olympus E-3
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Specifications: Olympus E-3 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 Model | Olympus E-3 | Pentax K-70 |
---|---|---|
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Four Thirds lenses | Pentax K mount lenses |
Launch Date | October 2007 | June 2016 |
Launch Price | USD 1,699 | USD 649 |
Sensor Specs | Olympus E-3 | 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 | 10 Megapixels | 24 Megapixels |
Image Resolution | 3648 x 2736 pixels | 6000 x 4000 pixels |
Pixel Pitch | 4.74 μm | 3.91 μm |
Pixel Density | 4.44 MP/cm2 | 6.55 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | 1080/60i Video |
ISO Setting | 100 - 3,200 ISO | 100 - 102,400 ISO |
Image Processor | TruePic III | PRIME MII |
DXO Sensor Quality (score) | 56 | .. |
DXO Color Depth (bits) | 21.6 | .. |
DXO Dynamic Range (EV) | 10.5 | .. |
DXO Low Light (ISO) | 571 | .. |
Screen Specs | Olympus E-3 | Pentax K-70 |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.58x | 0.63x |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 2.5inch | 3.0inch |
LCD Resolution | 230k dots | 921k dots |
LCD Attachment | Swivel screen | Swivel screen |
Shooting Specs | Olympus E-3 | Pentax K-70 |
Focus System | Phase-detect AF | Phase-detect AF |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/6000s |
Continuous Shooting | 5 shutter flaps/s | 6 shutter flaps/s |
Shutter Life Expectancy | 150 000 actuations | 100 000 actuations |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Image Stabilization | In-body stabilization | In-body stabilization |
Fill Flash | Built-in Flash | Built-in Flash |
Storage Medium | CF or XD cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Single card slot |
Connectivity Specs | Olympus E-3 | Pentax K-70 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | no PC Sync |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | no HDMI | mini HDMI |
Microphone Port | no MIC socket | External MIC port |
Wifi Support | no Wifi | Wifi built-in |
Body Specs | Olympus E-3 | Pentax K-70 |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Olympus BLM-1 | Pentax D-LI109 |
Battery Life (CIPA) | 750 shots per charge | 410 shots per charge |
Body Dimensions |
142 x 116 x 75 mm (5.6 x 4.6 x 3.0 in) |
126 x 93 x 74 mm (5.0 x 3.7 x 2.9 in) |
Camera Weight | 876 g (30.9 oz) | 688 g (24.3 oz) |
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