Leica S2 vs Pentax K-70
The Leica S2 and the Pentax K-70 are two digital cameras that were announced, respectively, in September 2008 and June 2016. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a medium format (S2) and an APS-C (K-70) sensor. The Leica has a resolution of 37.5 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 Leica S2 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.
An illustration of the physical size and weight of the Leica S2 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 S2 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 considerably smaller (39 percent) than the Leica S2. Moreover, the K-70 is substantially lighter (51 percent) than the S2. 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.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Leica S2||160 mm||120 mm||80 mm||1410 g||..||Y||Sep 2008||22,995|
|2.||Pentax K-70||126 mm||93 mm||74 mm||688 g||410||Y||Jun 2016||649|
|3.||Canon 1Ds Mark III||150 mm||160 mm||80 mm||1385 g||1800||Y||Aug 2007||7,999|
|4.||Leica S3||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2018||18,995|
|5.||Leica S-E Typ 006||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2014||16,900|
|6.||Leica S Typ 007||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2014||24,490|
|7.||Leica S Typ 006||160 mm||120 mm||80 mm||1260 g||..||Y||Sep 2012||21,950|
|8.||Leica S1||339 mm||214 mm||119 mm||2500 g||..||n||Aug 1996||21,490|
|9.||Nikon D3S||160 mm||157 mm||88 mm||1240 g||4200||Y||Oct 2009||5,199|
|10.||Nikon D3X||160 mm||157 mm||88 mm||1260 g||4400||Y||Dec 2008||7,999|
|11.||Nikon D3||160 mm||157 mm||88 mm||1300 g||4300||Y||Aug 2007||4,999|
|12.||Pentax KP||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099|
|13.||Pentax K-S2||123 mm||91 mm||73 mm||678 g||410||Y||Feb 2015||749|
|14.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099|
|15.||Pentax K-50||130 mm||97 mm||71 mm||650 g||410||Y||Jun 2013||599|
|16.||Pentax K-3||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299|
|17.||Pentax 645D||156 mm||117 mm||119 mm||1480 g||800||Y||Mar 2010||9,995|
Any camera decision will naturally be influenced heavily by the price. 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 markedly lower price (by 97 percent) than the S2, 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.
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. 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 Leica S2 features a medium format sensor and the Pentax K-70 an APS-C sensor. The sensor area in the K-70 is 73 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.8 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 37.5MP, the S2 offers a higher resolution than the K-70 (24MP), but the S2 nevertheless has larger individual pixels (pixel pitch of 6.00μm versus 3.91μm for the K-70) due to its larger sensor. However, the K-70 is a much more recent model (by 7 years and 8 months) than the S2, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 Leica S2 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S2 for good quality output (200 dots per inch) amounts to 37.5 x 25 inches or 95.3 x 63.5 cm, for very good quality (250 dpi) 30 x 20 inches or 76.2 x 50.8 cm, and for excellent quality (300 dpi) 25 x 16.7 inches or 63.5 x 42.3 cm. The corresponding values for the Pentax K-70 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 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 S2, 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 Leica S2 has a native sensitivity range from ISO 80 to ISO 1250. The corresponding ISO settings for the Pentax K-70 are ISO 100 to ISO 102400 (no boost).
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
| DXO |
|1.||Leica S2||Medium Format||37.5||7500||5000||none||..||..||..||..|
|3.||Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80|
|4.||Leica S3||Medium Format||64.0||9800||6533||4K/24p||..||..||..||..|
|5.||Leica S-E Typ 006||Medium Format||37.5||7500||5000||none||..||..||..||..|
|6.||Leica S Typ 007||Medium Format||37.5||7500||5000||4K/24p||..||..||..||..|
|7.||Leica S Typ 006||Medium Format||37.5||7500||5000||none||23.9||12.2||824||76|
|8.||Leica S1||Medium Format||26.4||5140||5140||none||..||..||..||..|
|9.||Nikon D3S||Full Frame||12.1||4256||2832||720/24p||23.5||12.0||3253||82|
|10.||Nikon D3X||Full Frame||24.4||6048||4032||none||24.7||13.7||1992||88|
|11.||Nikon D3||Full Frame||12.1||4256||2832||none||23.5||12.2||2290||81|
|14.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|17.||Pentax 645D||Medium Format||39.5||7264||5440||none||24.6||12.6||1262||82|
Many modern cameras are not only capable of taking still images, but can also record movies. The K-70 indeed provides for movie recording, while the S2 does not. The highest resolution format that the K-70 can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a range of features. The S2 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 viewfinder in the K-70 offers a wider field of view (100%) than the one in the S2 (96%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the S2 has a higher magnification (0.86x vs 0.63x), 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 Leica S2 and Pentax K-70 along with similar information for a selection of comparators.
|3.||Canon 1Ds Mark III||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n|
|5.||Leica S-E Typ 006||optical||Y||3.0||922||fixed||n||1/4000s||1.5||n||n|
|6.||Leica S Typ 007||optical||Y||3.0||922||fixed||n||1/4000s||3.5||n||n|
|7.||Leica S Typ 006||optical||Y||3.0||922||fixed||n||1/4000s||1.5||n||n|
|14.||Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y|
One feature that is present on the S2, 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.The K-70 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the S2 does not have a selfie-screen.
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 S2 writes its imaging data to Compact Flash or SDHC cards, while the K-70 uses SDXC cards. The S2 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 K-70 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the S2 cannot take advantage of Ultra High Speed SD cards.
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 Leica S2 and Pentax K-70 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|3.||Canon 1Ds Mark III||Y||mono||-||-||-||-||2.0||-||-||-|
|5.||Leica S-E Typ 006||Y||-||-||-||-||mini||2.0||-||-||-|
|6.||Leica S Typ 007||Y||stereo||mono||Y||Y||mini||3.0||Y||-||-|
|7.||Leica S Typ 006||Y||-||-||-||-||mini||2.0||-||-||-|
|14.||Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
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 S2 does not provide wifi capability.
Studio photographers will appreciate that the Leica S2 (unlike the K-70) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The K-70 is a recent model that features in the current product line-up of Pentax. In contrast, the S2 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the S2 was succeeded by the Leica S Typ 006. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Pentax websites.
So what conclusions can be drawn? Is the Leica S2 better than the Pentax K-70 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Leica S2:
- More detail: Offers more megapixels (37.5 vs 24MP) with a 25% higher linear resolution.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.86x vs 0.63x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- 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 prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More heavily discounted: Has been available for much longer (launched in September 2008).
Arguments in favor of the Pentax K-70:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- 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.
- More complete view: Has a viewfinder with a larger field of view (100% vs 96%).
- More detailed LCD: Has a higher resolution rear screen (921k vs 460k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (6 vs 1.5 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 160x120mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 722g or 51 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced into a lower priced category (97 percent cheaper at launch).
- More modern: Reflects 7 years and 8 months of technical progress since the S2 launch.
If the number of relative strengths (bullet points above) is taken as a guide, the K-70 is the clear winner of the contest (18 : 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 Leica S2 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 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 S2 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.
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], 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.
|1.||Leica S2||..||..||..||..||..||Sep 2008||22,995|
|2.||Pentax K-70||4.5/5||..||79/100||4.5/5||4.5/5||Jun 2016||649|
|3.||Canon 1Ds Mark III||..||..||+ +||4.5/5||..||Aug 2007||7,999|
|4.||Leica S3||..||..||..||..||..||Sep 2018||18,995|
|5.||Leica S-E Typ 006||..||..||..||..||..||Sep 2014||16,900|
|6.||Leica S Typ 007||4/5||..||..||..||..||Sep 2014||24,490|
|7.||Leica S Typ 006||..||..||..||..||..||Sep 2012||21,950|
|8.||Leica S1||..||..||..||..||..||Aug 1996||21,490|
|9.||Nikon D3S||5/5||..||89/100||4.5/5||5/5||Oct 2009||5,199|
|10.||Nikon D3X||..||..||86/100||4/5||5/5||Dec 2008||7,999|
|11.||Nikon D3||..||..||+ +||5/5||4.5/5||Aug 2007||4,999|
|12.||Pentax KP||4/5||..||82/100||5/5||4.5/5||Jan 2017||1,099|
|13.||Pentax K-S2||4.5/5||..||..||5/5||4.5/5||Feb 2015||749|
|14.||Pentax K-3 II||4.5/5||..||..||5/5||5/5||Apr 2015||1,099|
|15.||Pentax K-50||5/5||..||..||5/5||4.5/5||Jun 2013||599|
|16.||Pentax K-3||4/5||..||83/100||5/5||5/5||Oct 2013||1,299|
|17.||Pentax 645D||5/5||..||..||..||..||Mar 2010||9,995|
|Notes: (+ +) 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.
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.
Specifications: Leica S2 vs Pentax K-70
|Camera Model||Leica S2||Pentax K-70|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Leica S mount lenses||Pentax K mount lenses|
|Launch Date||September 2008||June 2016|
|Launch Price||USD 22,995||USD 649|
|Sensor Specs||Leica S2||Pentax K-70|
|Sensor Format||Medium Format Sensor||APS-C Sensor|
|Sensor Size||45.0 x 30.0 mm||23.5 x 15.6 mm|
|Sensor Area||1350 mm2||366.6 mm2|
|Sensor Diagonal||54.1 mm||28.2 mm|
|Sensor Resolution||37.5 Megapixels||24 Megapixels|
|Image Resolution||7500 x 5000 pixels||6000 x 4000 pixels|
|Pixel Pitch||6.00 μm||3.91 μm|
|Pixel Density||2.78 MP/cm2||6.55 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||80 - 1,250 ISO||100 - 102,400 ISO|
|Screen Specs||Leica S2||Pentax K-70|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||96%||100%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||460k dots||921k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Leica S2||Pentax K-70|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/6000s|
|Continuous Shooting||1.5 shutter flaps/s||6 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||no shake reduction||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF or SDHC cards||SDXC cards|
|Second Storage Option||Dual card slots||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Leica S2||Pentax K-70|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Body Specs||Leica S2||Pentax K-70|
|Environmental Sealing||Weathersealed body||Weathersealed body|
160 x 120 x 80 mm
(6.3 x 4.7 x 3.1 in)
126 x 93 x 74 mm
(5.0 x 3.7 x 2.9 in)
|Camera Weight||1410 g (49.7 oz)||688 g (24.3 oz)|