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Canon SX70 vs Pentax K-3 III

The Canon PowerShot SX70 HS and the Pentax K-3 III are two digital cameras that were officially introduced, respectively, in September 2018 and March 2021. The SX70 is a fixed lens compact, while the K-3 III is a DSLR. The cameras are based on a 1/2.3-inch (SX70) and an APS-C (K-3 III) sensor. The Canon has a resolution of 20.2 megapixels, whereas the Pentax provides 25.6 MP.

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

Headline Specifications
Canon SX70
versus
Pentax K-3 III
Canon SX70   Pentax K-3 III
Fixed lens compact camera Digital single lens reflex
21-1365mm f/3.4-6.5 Pentax K mount lenses
20.2 MP – 1/2.3" sensor 25.6 MP – APS-C sensor
4K/30p Video 4K/30p Video
ISO 100-3,200 ISO 100-160,000
Electronic viewfinder (2360k dots) Optical viewfinder
3.0" LCD – 922k dots 3.2" LCD – 1620k dots
Swivel screen (not touch-sensitive) Fixed touchscreen
10 shutter flaps per second 12 shutter flaps per second
Lens-based stabilizationIn-body stabilization
not weather sealedWeathersealed body
325 shots per battery charge800 shots per battery charge
127 x 91 x 117 mm, 608 g 135 x 104 x 74 mm, 820 g
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Check SX70 price at
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Check K-3 III price at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX70 HS and the Pentax K-3 III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon SX70 and the Pentax K-3 III. 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 K-3 III can be obtained in two different colors (black, silver), while the SX70 is only available in black.

Size Canon SX70 vs Pentax K-3 III
Compare SX70 versus K-3 III top
Comparison SX70 or K-3 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 III is notably larger (21 percent) than the Canon SX70. It is noteworthy in this context that the K-3 III is splash and dust-proof, while the SX70 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX70 has a lens built in, whereas the K-3 III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the SX70 gets 325 shots out of its Canon LP-E12 battery, while the K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon SX70 127 mm 91 mm 117 mm 608 g 325 n Sep 2018 US$ 549 amazon.com
2.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 US$ 1 999 amazon.com
3.
 
Canon 77D 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 US$ 899ebay.com
4.
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 US$ 529ebay.com
5.
 
Canon SX1 128 mm 88 mm 88 mm 615 g .. n Sep 2008 US$ 599ebay.com
6.
 
Canon SX60 128 mm 93 mm 114 mm 650 g 340 n Sep 2014 US$ 549ebay.com
7.
 
Canon SX430 104 mm 69 mm 85 mm 323 g 195 n Jan 2017 US$ 299ebay.com
8.
 
Canon SX730 110 mm 64 mm 40 mm 300 g 250 n Apr 2017 US$ 399ebay.com
9.
 
Canon SX740 110 mm 64 mm 40 mm 299 g 265 n Jul 2018 US$ 399 amazon.com
10.
 
Fujifilm X-H1 140 mm 97 mm 86 mm 673 g 310 Y Feb 2018 US$ 1 899ebay.com
11.
 
Nikon B700 125 mm 85 mm 107 mm 565 g 350 n Feb 2016 US$ 499ebay.com
12.
 
Panasonic FZ80 130 mm 94 mm 119 mm 616 g 330 n Jan 2017 US$ 399ebay.com
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 US$ 1 299ebay.com
14.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 US$ 1 099ebay.com
15.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 US$ 649ebay.com
16.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 US$ 1 099ebay.com
17.
 
Sony HX400V 130 mm 93 mm 103 mm 660 g 300 n Feb 2014 US$ 499ebay.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 SX70 was launched at a lower price than the K-3 III, despite having a lens built in. 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.

Sensor comparison

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.

Of the two cameras under consideration, the Canon SX70 features a 1/2.3-inch sensor and the Pentax K-3 III an APS-C sensor. The sensor area in the K-3 III is 1189 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.5. The sensor in the SX70 has a native 4:3 aspect ratio, while the one in the K-3 III offers a 3:2 aspect.

Canon SX70 and Pentax K-3 III sensor measures

With 25.6MP, the K-3 III offers a higher resolution than the SX70 (20.2MP), but the K-3 III nevertheless has larger individual pixels (pixel pitch of 3.76μm versus 1.18μm for the SX70) due to its larger sensor. Moreover, the K-3 III is a much more recent model (by 2 years and 6 months) than the SX70, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Pentax K-3 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 III for good quality output (200 dots per inch) amounts to 31 x 20.6 inches or 78.6 x 52.4 cm, for very good quality (250 dpi) 24.8 x 16.5 inches or 62.9 x 41.9 cm, and for excellent quality (300 dpi) 20.6 x 13.8 inches or 52.4 x 35 cm. The corresponding values for the Canon SX70 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

Unlike the SX70, the K-3 III has the capacity to capture high quality composite images (YESMP) 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 PowerShot SX70 HS has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (no boost).

In terms of underlying technology, the SX70 is build around a BSI-CMOS sensor, while the K-3 III uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

SX70 versus K-3 III MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon SX70 1/2.3 20.2 5184 38884K/30p20.612.1106351
2.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
3.
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
4.
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
5.
 
Canon SX1 1/2.3 10.0 3648 27361080/30p19.010.314435
6.
 
Canon SX60 1/2.3 14.2 4608 30721080/60p19.210.812739
7.
 
Canon SX430 1/2.3 19.9 5152 3864720/25p20.511.990049
8.
 
Canon SX730 1/2.3 20.2 5184 38881080/60p20.511.992450
9.
 
Canon SX740 1/2.3 20.2 5184 38884K/30p20.612.1105051
10.
 
Fujifilm X-H1 APS-C 24.0 6000 40004K/30p24.013.3180682
11.
 
Nikon B700 1/2.3 20.2 5184 38884K/30p20.411.881848
12.
 
Panasonic FZ80 1/2.3 18.0 4896 36724K/30p20.511.990049
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
14.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
15.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
16.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
17.
 
Sony HX400V 1/2.3 20.2 5184 38881080/60p20.111.462945
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, and both provide the same movie specifications (4K/30p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the SX70 has an electronic viewfinder (2360k dots), while the K-3 III has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Canon SX70 and Pentax K-3 III in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon SX702360 n3.0 / 922 swivel n 1/2000s 10.0/s Y Y
2.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
3.
 
Canon 77Doptical Y3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
4.
 
Canon G9 X Mark IInone n3.0 / 1040 fixed Y 1/2000s 8.2/s Y Y
5.
 
Canon SX1202 n2.8 / 230 swivel n 1/3200s 4.0/s Y Y
6.
 
Canon SX60922 n3.0 / 922 swivel n 1/2000s 6.4/s Y Y
7.
 
Canon SX430none n3.0 / 230 fixed n 1/4000s 0.5/s Y Y
8.
 
Canon SX730none n3.0 / 922 tilting n 1/3200s 5.9/s Y Y
9.
 
Canon SX740none n3.0 / 922 tilting n 1/3200s 10.0/s Y Y
10.
 
Fujifilm X-H13690 Y3.0 / 1040 full-flex Y 1/8000s 14.0/s n Y
11.
 
Nikon B700921 n3.0 / 921 swivel n 1/4000s 5.0/s Y Y
12.
 
Panasonic FZ801166 n3.0 / 1040 fixed Y 1/2000s 10.0/s Y Y
13.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
14.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
15.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
16.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
17.
 
Sony HX400V210 n3.0 / 921 tilting n 1/4000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The SX70 has one, while the K-3 III does not. While the built-in flash of the SX70 is not very powerful, it can at times be useful as a fill-in light.

The SX70 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the K-3 III does not have a selfie-screen.

The Pentax K-3 III 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 SX70 and the K-3 III write their files to SDXC cards. The K-3 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the SX70 only has one slot. The K-3 III supports UHS-II cards (on its first slot), while the SX70 can use UHS-I cards.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon PowerShot SX70 HS and Pentax K-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon SX70-stereo / monoY-micro2.0Y-Y
2.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Canon 77DYstereo / monoY-mini2.0YYY
4.
 
Canon G9 X Mark II-stereo / mono--micro2.0YYY
5.
 
Canon SX1Ystereo / mono--YES2.0---
6.
 
Canon SX60Ystereo / monoY-mini2.0YY-
7.
 
Canon SX430-mono / mono---2.0YY-
8.
 
Canon SX730-stereo / mono--micro2.0YYY
9.
 
Canon SX740-stereo / mono--micro2.0Y-Y
10.
 
Fujifilm X-H1Ystereo / monoY-micro3.0Y--
11.
 
Nikon B700-stereo / mono--micro2.0YYY
12.
 
Panasonic FZ80Ystereo / mono--micro2.0Y--
13.
 
Pentax K-3Ymono / monoYYmini3.0---
14.
 
Pentax K-3 IIYmono / monoYYmini3.0---
15.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
16.
 
Pentax KPYstereo / monoY--2.0Y--
17.
 
Sony HX400VYstereo / mono--micro2.0YY-

It is notable that the K-3 III has a hotshoe, which makes it possible to easily attach optional accessories, such as an external flash gun. The SX70 does not feature such an accessory-socket.

Studio photographers will appreciate that the Pentax K-3 III (unlike the SX70) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the K-3 III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the SX70 and the K-3 III are recent models that are part of the current product line-up. The SX70 replaced the earlier Canon SX60 , while the K-3 III followed on from the Pentax K-3 II. Further information on the features and operation of the SX70 and K-3 III can be found, respectively, in the Canon SX70 Manual (free pdf) or the online Pentax K-3 III Manual.

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Review summary

So what conclusions can be drawn? Is the Canon SX70 better than the Pentax K-3 III or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon PowerShot SX70 HS:

  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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.
  • Ready to shoot: Comes with a built-in lens, while the K-3 III requires a separate lens.
  • More compact: Is smaller (127x91mm vs 135x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the K-3 III).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in September 2018).

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Reasons to prefer the Pentax K-3 III:

  • More detail: Has more megapixels (25.6 vs 20.2MP), which boosts linear resolution by 15%.
  • 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.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1620k vs 922k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (800 versus 325) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 2 years and 6 months of technical progress since the SX70 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (25 : 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.

SX70 09:25 K-3 III

How about other alternatives? Do the specifications of the Canon SX70 and the Pentax K-3 III place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the SX70 or the K-3 III 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.

Expert reviews

This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon SX70..+ +3.5/5..3.5/53.5/5 Sep 2018 US$ 549 amazon.com
2.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 US$ 1 999 amazon.com
3.
 
Canon 77D4.5/5..4/582/1004.5/54/5 Feb 2017 US$ 899ebay.com
4.
 
Canon G9 X Mark II4/5..4/575/1004.5/54.5/5 Jan 2017 US$ 529ebay.com
5.
 
Canon SX1..+ +..+..3.5/5 Sep 2008 US$ 599ebay.com
6.
 
Canon SX603/5+ +..75/1004/54.5/5 Sep 2014 US$ 549ebay.com
7.
 
Canon SX430........3.5/53.5/5 Jan 2017 US$ 299ebay.com
8.
 
Canon SX730..+....4/54/5 Apr 2017 US$ 399ebay.com
9.
 
Canon SX740..+3.5/5..4/54/5 Jul 2018 US$ 399 amazon.com
10.
 
Fujifilm X-H1..+5/586/1004.5/54.5/5 Feb 2018 US$ 1 899ebay.com
11.
 
Nikon B700..+....4/54/5 Feb 2016 US$ 499ebay.com
12.
 
Panasonic FZ80..+ +....4.5/54.5/5 Jan 2017 US$ 399ebay.com
13.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 US$ 1 299ebay.com
14.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 US$ 1 099ebay.com
15.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 US$ 649ebay.com
16.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 US$ 1 099ebay.com
17.
 
Sony HX400V4/5+ +....4/54/5 Feb 2014 US$ 499ebay.com
Note: (+ +) 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.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Canon SX70 vs Pentax K-3 III

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon SX70 Pentax K-3 III
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 21-1365mm f/3.4-6.5 Pentax K mount lenses
    Launch Date September 2018 March 2021
    Launch Price USD 549 USD 1,999
    Sensor Specs Canon SX70 Pentax K-3 III
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1/2.3" Sensor APS-C Sensor
    Sensor Size 6.17 x 4.55 mm 23.3 x 15.5 mm
    Sensor Area 28.0735 mm2 361.15 mm2
    Sensor Diagonal 7.7 mm 28 mm
    Crop Factor 5.6x 1.5x
    Sensor Resolution 20.2 Megapixels 25.6 Megapixels
    Image Resolution 5184 x 3888 pixels 6192 x 4128 pixels
    Pixel Pitch 1.18 μm 3.76 μm
    Pixel Density 71.80 MP/cm2 7.08 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 100 - 3,200 ISO 100 - 160,000 ISO
    Image Processor DIGIC 8 PRIME V
    Screen Specs Canon SX70 Pentax K-3 III
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x
    Viewfinder Resolution 2360k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 922k dots 1620k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon SX70 Pentax K-3 III
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 12 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens-based stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Canon SX70 Pentax K-3 III
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.2
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Geotagging no internal GPS GPS built-in
    Body Specs Canon SX70 Pentax K-3 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon LP-E12 Pentax D-LI90
    Battery Life (CIPA)325 shots per charge800 shots per charge
    Body Dimensions 127 x 91 x 117 mm
    (5.0 x 3.6 x 4.6 in)
    135 x 104 x 74 mm
    (5.3 x 4.1 x 2.9 in)
    Camera Weight 608 g (21.4 oz) 820 g (28.9 oz)
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