Canon T3 vs Pentax K-70
The Canon EOS Rebel T3 (called Canon 1100D in some regions) and the Pentax K-70 are two digital cameras that were announced, respectively, in February 2011 and June 2016. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 12.2 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.
|Canon T3||Pentax K-70|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Pentax K mount lenses|
|12.2 MP, APS-C Sensor||24 MP, APS-C Sensor|
|720/30p Video||1080/60i Video|
|ISO 100-6400||ISO 100-102400|
|Optical viewfinder||Optical viewfinder|
|2.7" LCD, 230k dots||3.0" LCD, 921k dots|
|Fixed screen (not touch-sensitive)||Swivel screen (not touch-sensitive)|
|3 shutter flaps per second||6 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Not weather sealed||Weathersealed body|
|700 shots per battery charge||410 shots per battery charge|
|130 x 100 x 78 mm, 495 g||126 x 93 x 74 mm, 688 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3 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 physical size and weight of the Canon T3 and the Pentax K-70 are illustrated 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 T3 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 (10 percent) than the Canon T3. However, the K-70 is substantially heavier (39 percent) than the T3. It is noteworthy in this context that the K-70 is splash and dust-proof, while the T3 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.
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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon T3»||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449||Canon T3|
|Pentax K-70«||5.0 in||3.7 in||2.9 in||24.3 oz||410||Y||Jun 2016||649||Pentax K-70|
|Canon T100« »||5.1 in||4.0 in||3.0 in||15.4 oz||500||n||Feb 2018||399||Canon T100|
|Canon T5« »||5.1 in||3.9 in||3.1 in||16.9 oz||500||n||Feb 2014||449||Canon T5|
|Canon G1 X« »||4.6 in||3.2 in||2.6 in||18.8 oz||250||n||Jan 2012||799||Canon G1 X|
|Canon SX50« »||4.8 in||3.4 in||4.2 in||21.0 oz||315||n||Sep 2012||429||Canon SX50|
|Canon T4i« »||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849||Canon T4i|
|Canon T3i« »||5.2 in||3.9 in||3.1 in||20.1 oz||440||n||Feb 2011||599||Canon T3i|
|Canon T2i« »||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699||Canon T2i|
|Canon XS« »||5.0 in||3.9 in||2.6 in||17.7 oz||500||n||Jun 2008||449||Canon XS|
|Canon XSi« »||5.1 in||3.9 in||2.4 in||18.5 oz||500||n||Jan 2008||799||Canon XSi|
|Canon XTi« »||5.0 in||3.3 in||2.6 in||19.6 oz||370||n||Aug 2006||799||Canon XTi|
|Pentax KP« »||5.2 in||4.0 in||3.0 in||24.8 oz||390||Y||Jan 2017||1,099||Pentax KP|
|Pentax K-3 II« »||5.2 in||3.9 in||3.0 in||28.2 oz||720||Y||Apr 2015||1,099||Pentax K-3 II|
|Pentax K-3« »||5.2 in||3.9 in||3.0 in||28.2 oz||560||Y||Oct 2013||1,299||Pentax K-3|
|Pentax K-5« »||5.2 in||3.8 in||2.9 in||26.8 oz||740||Y||Sep 2010||1,099||Pentax K-5|
|Sony A68« »||5.6 in||4.1 in||3.2 in||21.5 oz||540||n||Nov 2015||699||Sony A68|
|Note: Measurements and pricing do not include easily detachable parts, such as 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 T3 was launched at a markedly lower price (by 31 percent) than the K-70, 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.
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 14 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (T3) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 24MP, the K-70 offers a higher resolution than the T3 (12.2MP), but the K-70 has smaller individual pixels (pixel pitch of 3.91μm versus 5.15μm for the T3). Yet, the K-70 is a much more recent model (by 5 years and 4 months) than the T3, 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 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon T3 are 21.4 x 14.2 inch or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inch or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inch or 36.2 x 24.1 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 T3, 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 T3 has a native sensitivity range from ISO 100 to ISO 6400. 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.
|Canon T3||APS-C||12.2||4272||2848||720/30p||21.9||11.0||755||62||Canon T3|
|Pentax K-70||APS-C||24.0||6000||4000||1080/60i||..||..||..||..||Pentax K-70|
|Canon T100||APS-C||17.9||5184||3456||1080/30p||21.9||11.4||695||63||Canon T100|
|Canon T5||APS-C||17.9||5184||3456||1080/30p||21.9||11.3||724||63||Canon T5|
|Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60||Canon G1 X|
|Canon SX50||1/2.3||12.0||4000||3000||1080/24p||20.3||11.2||179||47||Canon SX50|
|Canon T4i||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62||Canon T4i|
|Canon T3i||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||793||65||Canon T3i|
|Canon T2i||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||784||66||Canon T2i|
|Canon XS||APS-C||10.1||3888||2592||none||..||..||..||..||Canon XS|
|Canon XSi||APS-C||12.2||4272||2848||none||21.9||10.8||692||61||Canon XSi|
|Canon XTi||APS-C||10.1||3888||2592||none||22.1||11.0||664||62||Canon XTi|
|Pentax KP||APS-C||24.1||6016||4000||1080/60i||..||..||..||..||Pentax KP|
|Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80||Pentax K-3 II|
|Pentax K-3||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80||Pentax K-3|
|Pentax K-5||APS-C||16.1||4928||3264||1080/25p||23.7||14.1||1162||82||Pentax K-5|
|Sony A68||APS-C||24.0||6000||4000||1080/60i||24.1||13.5||701||79||Sony A68|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the K-70 provides a better video resolution than the T3. It can shoot movie footage at 1080/60i, while the Canon is limited to 720/30p.
Apart from body and sensor, cameras can and do differ across a variety of features. The T3 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 T3 (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 0.50x), 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 Canon T3 and Pentax K-70 along with similar information for a selection of comparators.
|Canon T3||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon T3|
|Pentax K-70||optical||n||3.0||921||swivel||n||1/6000s||6.0||Y||Y||Pentax K-70|
|Canon T100||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon T100|
|Canon T5||optical||n||3.0||460||fixed||n||1/4000s||3.0||Y||n||Canon T5|
|Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y||Canon G1 X|
|Canon SX50||202||n||3.0||461||swivel||n||1/2000s||2.2||Y||Y||Canon SX50|
|Canon T4i||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon T4i|
|Canon T3i||optical||n||3.0||1040||swivel||n||1/4000s||3.7||Y||n||Canon T3i|
|Canon T2i||optical||n||3.0||1040||fixed||n||1/4000s||3.7||Y||n||Canon T2i|
|Canon XS||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Canon XS|
|Canon XSi||optical||n||3.0||230||fixed||n||1/4000s||3.5||Y||n||Canon XSi|
|Canon XTi||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Canon XTi|
|Pentax KP||optical||n||3.0||921||tilting||n||1/6000s||7.0||Y||Y||Pentax KP|
|Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y||Pentax K-3 II|
|Pentax K-3||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||Y||Y||Pentax K-3|
|Pentax K-5||optical||Y||3.0||921||fixed||n||1/8000s||7.0||Y||Y||Pentax K-5|
|Sony A68||1440||Y||2.7||460||tilting||n||1/4000s||8.0||Y||Y||Sony A68|
One feature that differentiates the K-70 and the T3 is in-body image stabilization (IBIS). The K-70 reduces the risk of handshake-induced blur with all attached lenses, while the T3 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.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 T3 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.
Concerning the storage of imaging data, both the T3 and the K-70 write their files to SDXC cards. The K-70 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the T3 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 Canon EOS Rebel T3 and Pentax K-70 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon T3||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon T3|
|Pentax K-70||Y||stereo||mono||Y||-||mini||2.0||Y||-||-||Pentax K-70|
|Canon T100||Y||mono||mono||-||-||mini||2.0||Y||Y||-||Canon T100|
|Canon T5||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon T5|
|Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon G1 X|
|Canon SX50||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon SX50|
|Canon T4i||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon T4i|
|Canon T3i||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon T3i|
|Canon T2i||Y||stereo||none||Y||-||mini||2.0||-||-||-||Canon T2i|
|Canon XS||Y||none||none||-||-||none||2.0||-||-||-||Canon XS|
|Canon XSi||Y||none||none||-||-||mini||2.0||-||-||-||Canon XSi|
|Canon XTi||Y||none||none||-||-||none||2.0||-||-||-||Canon XTi|
|Pentax KP||Y||stereo||mono||Y||-||none||2.0||Y||-||-||Pentax KP|
|Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3 II|
|Pentax K-3||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3|
|Pentax K-5||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Pentax K-5|
|Sony A68||Y||stereo||mono||Y||-||micro||2.0||-||-||-||Sony A68|
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 T3 does not offer wifi capability.
The K-70 is a recent model that features in the current product line-up of Pentax. In contrast, the T3 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the T3 was succeeded by the Canon T5. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Pentax websites.
So what conclusions can be drawn? Is the Canon T3 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 T3:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Less heavy: Is lighter (by 193g or 28 percent) and hence easier to carry around.
- Longer lasting: Can take more shots (700 versus 410) on a single battery charge.
- More affordable: Was introduced into a lower priced category (31 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2011).
Arguments in favor of the Pentax K-70:
- More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 40%.
- 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 video: Provides higher definition movie capture (1080/60i vs 720/30p).
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- 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 0.50x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (921k vs 230k 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 3 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- 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.
- 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 modern: Reflects 5 years and 4 months of technical progress since the T3 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 (20 : 5 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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 T3 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 says little about, for example, the shooting experience and imaging performance of the T3 and the K-70 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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: Canon T3 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 T3||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||February 2011||June 2016|
|Launch Price||USD 449||USD 649|
|Sensor Specs||Canon T3||Pentax K-70|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.0 x 14.7 mm||23.5 x 15.6 mm|
|Sensor Area||323.4 mm2||366.6 mm2|
|Sensor Diagonal||26.5 mm||28.2 mm|
|Sensor Resolution||12.2 Megapixels||24 Megapixels|
|Image Resolution||4272 x 2848 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.15 μm||3.91 μm|
|Pixel Density||3.76 MP/cm2||6.55 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||720/30p Video||1080/60i Video|
|ISO Setting||100-6400 ISO||100-102400 ISO|
|Image Processor||DIGIC 4||PRIME MII|
|DXO Sensor Quality (score)||62||..|
|DXO Color Depth (bits)||21.9||..|
|DXO Dynamic Range (EV)||11.0||..|
|DXO Low Light (ISO)||755||..|
|Screen Specs||Canon T3||Pentax K-70|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||100%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7 inch||3.0 inch|
|LCD Resolution||230k dots||921k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Canon T3||Pentax K-70|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/6000/s|
|Continuous Shooting||3 shutter flaps/s||6 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon T3||Pentax K-70|
|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||Canon T3||Pentax K-70|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||700 shots per charge||410 shots per charge|
130 x 100 x 78 mm
(5.1 x 3.9 x 3.1 in)
126 x 93 x 74 mm
(5.0 x 3.7 x 2.9 in)
|Camera Weight||495 g (17.5 oz)||688 g (24.3 oz)|
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