Canon SL2 vs Pentax K-70
The Canon EOS Rebel SL2 (called Canon 200D in some regions) and the Pentax K-70 are two digital cameras that were officially introduced, respectively, in June 2017 and June 2016. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.
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 Canon EOS Rebel SL2 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.
The side-by-side display below illustrates the physical size and weight of the Canon SL2 and the Pentax K-70. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
The SL2 can be obtained in two different colors (black, white), while the K-70 is also available in two color-versions, but different ones (black, silver).
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 larger (3 percent) than the Canon SL2. Moreover, the K-70 is substantially heavier (52 percent) than the SL2. It is noteworthy in this context that the K-70 is splash and dust-proof, while the SL2 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 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 SL2 gets 650 shots out of its LP-E17 battery, while the K-70 can take 410 images on a single charge of its 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.
|1.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549||ebay.com|
|2.||Pentax K-70||126 mm||93 mm||74 mm||688 g||410||Y||Jun 2016||649||amazon.com|
|3.||Canon SL3||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599||amazon.com|
|4.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449||amazon.com|
|5.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899||ebay.com|
|6.||Canon M6||112 mm||68 mm||45 mm||390 g||295||n||Feb 2017||779||ebay.com|
|7.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499||ebay.com|
|8.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749||ebay.com|
|9.||Canon M5||116 mm||89 mm||61 mm||427 g||295||n||Sep 2016||979||ebay.com|
|10.||Canon T6||129 mm||101 mm||78 mm||485 g||500||n||Mar 2016||449||ebay.com|
|11.||Canon T6s||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|12.||Canon SL1||117 mm||91 mm||69 mm||407 g||380||n||Mar 2013||549||ebay.com|
|13.||Pentax K-3 III||135 mm||104 mm||74 mm||820 g||800||Y||Mar 2021||1,999||amazon.com|
|14.||Pentax KP||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099||ebay.com|
|15.||Pentax K-S2||123 mm||91 mm||73 mm||678 g||410||Y||Feb 2015||749||ebay.com|
|16.||Pentax K-3 II||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099||ebay.com|
|17.||Pentax K-50||130 mm||97 mm||71 mm||650 g||410||Y||Jun 2013||599||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The SL2 was launched at a somewhat lower price (by 15 percent) than the K-70, 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. 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.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the K-70 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (SL2) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Even though the K-70 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the K-70 has a lower pixel density and larger individual pixels (with a pixel pitch of 3.91μm versus 3.72μm for the SL2), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the SL2 is a somewhat more recent model (by 1 year) than the K-70, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size. 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.
Unlike the SL2, 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 Canon EOS Rebel SL2 has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. 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.
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|13.||Pentax K-3 III||APS-C||25.6||6192||4128||4K/30p||24.2||13.7||2083||85|
|16.||Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80|
|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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the SL2 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.
Apart from body and sensor, cameras can and do differ across a range of features. The SL2 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 SL2 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the K-70 has a higher magnification (0.63x vs 0.54x), 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 Canon SL2 and Pentax K-70 in connection with corresponding information for a sample of similar cameras.
|1.||Canon SL2||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|2.||Pentax K-70||optical||n||3.0 / 921||swivel||n||1/6000s||6.0/s||Y||Y|
|3.||Canon SL3||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|4.||Canon T7||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||Y||n|
|5.||Canon 77D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|6.||Canon M6||optional||n||3.0 / 1040||tilting||Y||1/4000s||9.0/s||Y||n|
|7.||Canon M100||none||n||3.0 / 1040||tilting||Y||1/4000s||6.1/s||Y||n|
|8.||Canon T7i||optical||n||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|9.||Canon M5||2360||n||3.2 / 1620||tilting||Y||1/4000s||9.0/s||Y||n|
|10.||Canon T6||optical||n||3.0 / 920||fixed||n||1/4000s||3.0/s||Y||n|
|11.||Canon T6s||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|12.||Canon SL1||optical||n||3.0 / 1040||fixed||Y||1/4000s||4.9/s||Y||n|
|13.||Pentax K-3 III||optical||Y||3.2 / 1620||fixed||Y||1/8000s||12.0/s||n||Y|
|14.||Pentax KP||optical||n||3.0 / 921||tilting||n||1/6000s||7.0/s||Y||Y|
|15.||Pentax K-S2||optical||n||3.0 / 921||swivel||n||1/6000s||5.4/s||Y||Y|
|16.||Pentax K-3 II||optical||Y||3.2 / 1037||fixed||n||1/8000s||8.3/s||n||Y|
|17.||Pentax K-50||optical||n||3.0 / 921||fixed||n||1/6000s||6.0/s||Y||Y|
|Notes: *) 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 SL2 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 Canon SL2 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 SL2 and the K-70 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 Canon EOS Rebel SL2 and Pentax K-70 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon SL2||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|2.||Pentax K-70||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|3.||Canon SL3||Y||stereo / mono||Y||-||mini||2.0||Y||-||Y|
|4.||Canon T7||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|5.||Canon 77D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|6.||Canon M6||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|7.||Canon M100||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|8.||Canon T7i||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|9.||Canon M5||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|10.||Canon T6||Y||mono / mono||-||-||mini||2.0||Y||Y||-|
|11.||Canon T6s||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|12.||Canon SL1||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|13.||Pentax K-3 III||Y||stereo / mono||Y||Y||micro||3.2||Y||-||Y|
|14.||Pentax KP||Y||stereo / mono||Y||-||-||2.0||Y||-||-|
|15.||Pentax K-S2||Y||mono / mono||Y||-||micro||2.0||Y||Y||-|
|16.||Pentax K-3 II||Y||mono / mono||Y||Y||mini||3.0||-||-||-|
|17.||Pentax K-50||Y||mono / mono||-||-||micro||2.0||-||-||-|
The K-70 is a recent model that features in the current product line-up of Pentax. In contrast, the SL2 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the SL2 was succeeded by the Canon SL2. Further information on the features and operation of the SL2 and K-70 can be found, respectively, in the Canon SL2 Manual (free pdf) or the online Pentax K-70 Manual.
So what conclusions can be drawn? Is the Canon SL2 better than the Pentax K-70 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS Rebel SL2:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
- 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.
- Less heavy: Is lighter (by 235g or 34 percent) and hence easier to carry around.
- Longer lasting: Can take more shots (650 versus 410) on a single battery charge.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced segment (15 percent cheaper at launch).
- More modern: Is somewhat more recent (announced 1 year after the K-70).
Reasons to prefer the Pentax K-70:
- 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.
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.63x vs 0.54x).
- Faster shutter: Has higher mechanical shutter speed (1/6000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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 SL2 comes out slightly ahead of the K-70 (10 : 9 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 Canon SL2 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 SL2 or the K-70 perform in practice. 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 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.
|1.||Canon SL2||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549||ebay.com|
|2.||Pentax K-70||4.5/5||..||4/5||79/100||4.5/5||4.5/5||Jun 2016||649||amazon.com|
|3.||Canon SL3||4/5||o||4.5/5||79/100||4/5||4/5||Apr 2019||599||amazon.com|
|4.||Canon T7||..||o||3.5/5||..||3.5/5||3.5/5||Feb 2018||449||amazon.com|
|5.||Canon 77D||4.5/5||..||4/5||82/100||4.5/5||4/5||Feb 2017||899||ebay.com|
|6.||Canon M6||..||..||..||80/100||4/5||4/5||Feb 2017||779||ebay.com|
|7.||Canon M100||3/5||+||..||..||4/5||3.5/5||Aug 2017||499||ebay.com|
|8.||Canon T7i||4.5/5||..||3.5/5||80/100||4.5/5||4/5||Feb 2017||749||ebay.com|
|9.||Canon M5||4/5||+||4/5||82/100||4/5||4/5||Sep 2016||979||ebay.com|
|10.||Canon T6||4/5||o||4/5||73/100||4/5||4/5||Mar 2016||449||ebay.com|
|11.||Canon T6s||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|12.||Canon SL1||4/5||+||..||78/100||4/5||4/5||Mar 2013||549||ebay.com|
|13.||Pentax K-3 III||4/5||..||3/5||..||4.5/5||..||Mar 2021||1,999||amazon.com|
|14.||Pentax KP||4/5||..||3/5||82/100||5/5||4.5/5||Jan 2017||1,099||ebay.com|
|15.||Pentax K-S2||4.5/5||..||..||..||5/5||4.5/5||Feb 2015||749||ebay.com|
|16.||Pentax K-3 II||4.5/5||..||..||..||5/5||5/5||Apr 2015||1,099||ebay.com|
|17.||Pentax K-50||5/5||..||..||..||5/5||4.5/5||Jun 2013||599||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? 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.
- Canon 1Ds Mark II vs Canon SL2
- Canon 90D vs Canon SL2
- Canon SL2 vs Fujifilm GFX 50R
- Canon SL2 vs Panasonic FZ80
- Canon SL2 vs Panasonic G1
- Canon SL2 vs Ricoh WG-60
- Canon XC10 vs Pentax K-70
- Kodak AZ901 vs Pentax K-70
- Panasonic GF1 vs Pentax K-70
- Panasonic GF6 vs Pentax K-70
- Pentax K-3 III vs Pentax K-70
- Pentax K-5 II vs Pentax K-70
Specifications: Canon SL2 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||Canon SL2||Pentax K-70|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Pentax K mount lenses|
|Launch Date||June 2017||June 2016|
|Launch Price||USD 549||USD 649|
|Sensor Specs||Canon SL2||Pentax K-70|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||23.5 x 15.6 mm|
|Sensor Area||332.27 mm2||366.6 mm2|
|Sensor Diagonal||26.8 mm||28.2 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.72 μm||3.91 μm|
|Pixel Density||7.22 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60p Video||1080/60i Video|
|ISO Setting||100 - 25,600 ISO||100 - 102,400 ISO|
|ISO Boost||100 - 51,200 ISO||no Enhancement|
|Image Processor||DIGIC 7||PRIME MII|
|DXO Sensor Quality (score)||79||..|
|DXO Color Depth (bits)||23.6||..|
|DXO Dynamic Range (EV)||13.4||..|
|DXO Low Light (ISO)||1041||..|
|Screen Specs||Canon SL2||Pentax K-70|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1040k dots||921k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Canon SL2||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||5 shutter flaps/s||6 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Canon SL2||Pentax K-70|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||no NFC|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Canon SL2||Pentax K-70|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||650 shots per charge||410 shots per charge|
122 x 93 x 70 mm
(4.8 x 3.7 x 2.8 in)
126 x 93 x 74 mm
(5.0 x 3.7 x 2.9 in)
|Camera Weight||453 g (16.0 oz)||688 g (24.3 oz)|
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