Canon R100 vs Pentax K-3 III
The Canon EOS R100 and the Pentax K-3 III are two digital cameras that were officially introduced, respectively, in May 2023 and March 2021. The R100 is a mirrorless interchangeable lens camera, while the K-3 III is a DSLR. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 24 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS R100 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.
Body comparison
The side-by-side display below illustrates the physical size and weight of the Canon R100 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 R100 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-3 III is notably larger (41 percent) than the Canon R100. Moreover, the K-3 III is substantially heavier (130 percent) than the R100. It is noteworthy in this context that the K-3 III is splash and dust-proof, while the R100 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 R100 gets 400 shots out of its Canon LP-E17 battery, while the K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack.
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.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon R100 | 116 mm | 86 mm | 69 mm | 356 g | 400 | n | May 2023 | US$ 479 | 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 M50 | 116 mm | 88 mm | 59 mm | 390 g | 235 | n | Feb 2018 | US$ 779 | ebay.com | |
4. | Canon M50 Mark II | 116 mm | 88 mm | 59 mm | 387 g | 305 | n | Oct 2020 | US$ 599 | ebay.com | |
5. | Canon M100 | 108 mm | 67 mm | 35 mm | 302 g | 295 | n | Aug 2017 | US$ 499 | ebay.com | |
6. | Canon M200 | 108 mm | 67 mm | 35 mm | 299 g | 315 | n | Sep 2019 | US$ 549 | ebay.com | |
7. | Canon R10 | 123 mm | 88 mm | 83 mm | 429 g | 450 | n | May 2022 | US$ 979 | amazon.com | |
8. | Canon R50 | 116 mm | 86 mm | 69 mm | 375 g | 230 | n | Feb 2023 | US$ 679 | amazon.com | |
9. | Canon SL2 | 122 mm | 93 mm | 70 mm | 453 g | 650 | n | Jun 2017 | US$ 549 | ebay.com | |
10. | Canon SX730 | 110 mm | 64 mm | 40 mm | 300 g | 250 | n | Apr 2017 | US$ 399 | ebay.com | |
11. | Canon SX740 | 110 mm | 64 mm | 40 mm | 299 g | 265 | n | Jul 2018 | US$ 399 | amazon.com | |
12. | Canon T7 | 129 mm | 101 mm | 78 mm | 475 g | 500 | n | Feb 2018 | US$ 449 | amazon.com | |
13. | Fujifilm X-H1 | 140 mm | 97 mm | 86 mm | 673 g | 310 | Y | Feb 2018 | US$ 1 899 | ebay.com | |
14. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | US$ 1 299 | ebay.com | |
15. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | US$ 1 099 | ebay.com | |
16. | Pentax K-70 | 126 mm | 93 mm | 74 mm | 688 g | 410 | Y | Jun 2016 | US$ 649 | ebay.com | |
17. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | US$ 1 099 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will naturally be influenced heavily by the price. 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 R100 was launched at a markedly lower price (by 76 percent) than the K-3 III, 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.
Sensor comparison
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. 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 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-3 III is 9 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (R100) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 25.6MP, the K-3 III offers a higher resolution than the R100 (24MP), but the K-3 III nevertheless has marginally larger individual pixels (pixel pitch of 3.76μm versus 3.72μm for the R100) due to its larger sensor. However, the R100 is a much more recent model (by 2 years and 1 month) than the K-3 III, 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The R100 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the R100, 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 EOS R100 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon R100 | APS-C | 24.0 | 6000 | 4000 | 4k/24p | 24.1 | 13.9 | 2197 | 84 | |
2. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
3. | Canon M50 | APS-C | 24.0 | 6000 | 4000 | 4K/24p | 23.8 | 13.3 | 1684 | 81 | |
4. | Canon M50 Mark II | APS-C | 24.0 | 6000 | 4000 | 4K/24p | 24.0 | 13.6 | 1939 | 83 | |
5. | Canon M100 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.5 | 12.9 | 1272 | 78 | |
6. | Canon M200 | APS-C | 24.0 | 6000 | 4000 | 4k/25p | 24.0 | 13.5 | 1836 | 82 | |
7. | Canon R10 | APS-C | 24.0 | 6000 | 4000 | 4k/60p | 24.1 | 13.8 | 2085 | 84 | |
8. | Canon R50 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.1 | 13.9 | 2168 | 84 | |
9. | Canon SL2 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.4 | 1041 | 79 | |
10. | Canon SX730 | 1/2.3 | 20.2 | 5184 | 3888 | 1080/60p | 20.5 | 11.9 | 924 | 50 | |
11. | Canon SX740 | 1/2.3 | 20.2 | 5184 | 3888 | 4K/30p | 20.6 | 12.1 | 1050 | 51 | |
12. | Canon T7 | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 23.8 | 13.3 | 1684 | 81 | |
13. | Fujifilm X-H1 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 24.0 | 13.3 | 1806 | 82 | |
14. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
15. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
16. | Pentax K-70 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 23.8 | 13.1 | 1639 | 80 | |
17. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
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-3 III provides a faster frame rate than the R100. It can shoot movie footage at 4K/30p, while the Canon is limited to 4k/24p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the R100 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the K-3 III has a higher magnification than the one of the R100 (0.70x vs 0.58x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon R100 and Pentax K-3 III along with similar information for a selection of comparators.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon R100 | 2360 | n | 3.0 / 1040 | fixed | n | 1/4000s | 6.5/s | Y | n | |
2. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
3. | Canon M50 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 10.0/s | Y | n | |
4. | Canon M50 Mark II | 2360 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 10.0/s | Y | n | |
5. | Canon M100 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 6.1/s | Y | n | |
6. | Canon M200 | none | n | 3.0 / 1040 | tilting | Y | 1/4000s | 6.1/s | Y | n | |
7. | Canon R10 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 15.0/s | Y | n | |
8. | Canon R50 | 2360 | n | 3.0 / 1620 | swivel | Y | 1/4000s | 12.0/s | Y | n | |
9. | Canon SL2 | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
10. | Canon SX730 | none | n | 3.0 / 922 | tilting | n | 1/3200s | 5.9/s | Y | Y | |
11. | Canon SX740 | none | n | 3.0 / 922 | tilting | n | 1/3200s | 10.0/s | Y | Y | |
12. | Canon T7 | optical | n | 3.0 / 920 | fixed | n | 1/4000s | 3.0/s | Y | n | |
13. | Fujifilm X-H1 | 3690 | Y | 3.0 / 1040 | full-flex | Y | 1/8000s | 14.0/s | n | Y | |
14. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
15. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
16. | Pentax K-70 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 6.0/s | Y | Y | |
17. | Pentax KP | optical | n | 3.0 / 921 | tilting | n | 1/6000s | 7.0/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 R100 has one, while the K-3 III does not. While the built-in flash of the R100 is not very powerful, it can at times be useful as a fill-in light.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the R100 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Canon R100 and the Pentax K-3 III 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 R100 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 R100 only has one slot. The K-3 III supports UHS-II cards (on its first slot), while the R100 can use UHS-I cards.
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 EOS R100 and Pentax K-3 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon R100 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
2. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
3. | Canon M50 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
4. | Canon M50 Mark II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
5. | Canon M100 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | Y | |
6. | Canon M200 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
7. | Canon R10 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | Y | |
8. | Canon R50 | Y | stereo / mono | Y | - | micro | 3.2 | Y | - | Y | |
9. | Canon SL2 | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
10. | Canon SX730 | - | stereo / mono | - | - | micro | 2.0 | Y | Y | Y | |
11. | Canon SX740 | - | stereo / mono | - | - | micro | 2.0 | Y | - | Y | |
12. | Canon T7 | Y | mono / mono | - | - | mini | 2.0 | Y | Y | - | |
13. | Fujifilm X-H1 | Y | stereo / mono | Y | - | micro | 3.0 | Y | - | - | |
14. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
15. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
16. | Pentax K-70 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
17. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - |
It is notable that the K-3 III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The R100 lacks such a headphone port.
Studio photographers will appreciate that the Pentax K-3 III (unlike the R100) 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 R100 and the K-3 III are recent models that are part of the current product line-up. The K-3 III replaced the earlier Pentax K-3 II, while the R100 does not have a direct predecessor. Further information on the features and operation of the R100 and K-3 III can be found, respectively, in the Canon R100 Manual (free pdf) or the online Pentax K-3 III Manual.
Review summary
So how do things add up? Is there a clear favorite between the Canon R100 and the Pentax K-3 III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS R100:
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (116x86mm vs 135x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 464g or 57 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (76 percent cheaper at launch).
- More modern: Reflects 2 years and 1 month of technical progress since the K-3 III launch.
Advantages of the Pentax K-3 III:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better video: Provides higher movie framerates (4K/30p versus 4k/24p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.58x).
- 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 1040k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 6.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (800 versus 400) out of a single battery charge.
- 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 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 heavily discounted: Has been around for much longer (launched in March 2021).
If the count of individual advantages (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (20 : 9 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 R100 and the Pentax K-3 III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens 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 R100 or the K-3 III perform in practice. 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.
Expert reviews
This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon R100 | 3/5 | o | 4.5/5 | 79/100 | .. | 3.5/5 | May 2023 | US$ 479 | amazon.com | |
2. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | US$ 1 999 | amazon.com | |
3. | Canon M50 | .. | + | 4/5 | 79/100 | .. | 3.5/5 | Feb 2018 | US$ 779 | ebay.com | |
4. | Canon M50 Mark II | 4/5 | .. | 4/5 | .. | 4.5/5 | 3.5/5 | Oct 2020 | US$ 599 | ebay.com | |
5. | Canon M100 | 3/5 | + | .. | .. | 4/5 | 3.5/5 | Aug 2017 | US$ 499 | ebay.com | |
6. | Canon M200 | .. | + | 3/5 | 79/100 | 4/5 | 4/5 | Sep 2019 | US$ 549 | ebay.com | |
7. | Canon R10 | 4/5 | .. | 4.5/5 | 87/100 | 4/5 | 4.5/5 | May 2022 | US$ 979 | amazon.com | |
8. | Canon R50 | 4/5 | + + | 4.5/5 | 84/100 | .. | 4.5/5 | Feb 2023 | US$ 679 | amazon.com | |
9. | Canon SL2 | 4/5 | + + | 4/5 | 78/100 | 4.5/5 | 4.5/5 | Jun 2017 | US$ 549 | ebay.com | |
10. | Canon SX730 | .. | + | .. | .. | 4/5 | 4/5 | Apr 2017 | US$ 399 | ebay.com | |
11. | Canon SX740 | .. | + | 3.5/5 | .. | 4/5 | 4/5 | Jul 2018 | US$ 399 | amazon.com | |
12. | Canon T7 | .. | o | 3.5/5 | .. | 3.5/5 | 3.5/5 | Feb 2018 | US$ 449 | amazon.com | |
13. | Fujifilm X-H1 | .. | + | 5/5 | 86/100 | 4.5/5 | 4.5/5 | Feb 2018 | US$ 1 899 | ebay.com | |
14. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | US$ 1 299 | ebay.com | |
15. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | US$ 1 099 | ebay.com | |
16. | Pentax K-70 | 4.5/5 | .. | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Jun 2016 | US$ 649 | ebay.com | |
17. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | US$ 1 099 | ebay.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. 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.
- Canon 600D vs Canon R100
- Canon R100 vs Canon R3
- Canon R100 vs Canon SL3
- Canon R100 vs Nikon B600
- Canon R100 vs Panasonic TZ90
- Canon R100 vs Sony A9 II
- Leica S3 vs Pentax K-3 III
- Nikon D3400 vs Pentax K-3 III
- Nikon D850 vs Pentax K-3 III
- Nikon Z50 vs Pentax K-3 III
- Panasonic G1 vs Pentax K-3 III
- Pentax K-3 III vs Ricoh WG-60
Specifications: Canon R100 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 Model | Canon R100 | Pentax K-3 III |
---|---|---|
Camera Type | Mirrorless system camera | Digital single lens reflex |
Camera Lens | Canon RF mount lenses | Pentax K mount lenses |
Launch Date | May 2023 | March 2021 |
Launch Price | USD 479 | USD 1,999 |
Sensor Specs | Canon R100 | Pentax K-3 III |
Sensor Technology | CMOS | CMOS |
Sensor Format | APS-C Sensor | APS-C Sensor |
Sensor Size | 22.3 x 14.9 mm | 23.3 x 15.5 mm |
Sensor Area | 332.27 mm2 | 361.15 mm2 |
Sensor Diagonal | 26.8 mm | 28 mm |
Crop Factor | 1.6x | 1.5x |
Sensor Resolution | 24 Megapixels | 25.6 Megapixels |
Image Resolution | 6000 x 4000 pixels | 6192 x 4128 pixels |
Pixel Pitch | 3.72 μm | 3.76 μm |
Pixel Density | 7.22 MP/cm2 | 7.08 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 4k/24p Video | 4K/30p Video |
ISO Setting | 100 - 25,600 ISO | 100 - 160,000 ISO |
Image Processor | DIGIC 8 | PRIME V |
Screen Specs | Canon R100 | Pentax K-3 III |
Viewfinder Type | Electronic viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 100% |
Viewfinder Magnification | 0.58x | 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 | 1040k dots | 1620k dots |
LCD Attachment | Fixed screen | Fixed screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Canon R100 | Pentax K-3 III |
Focus System | On-Sensor Phase-detect | Phase-detect AF |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 6.5 shutter flaps/s | 12 shutter flaps/s |
Electronic Shutter | YES | no E-Shutter |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-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 R100 | Pentax K-3 III |
External Flash | 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 R100 | Pentax K-3 III |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon LP-E17 | Pentax D-LI90 |
Battery Life (CIPA) | 400 shots per charge | 800 shots per charge |
Body Dimensions |
116 x 86 x 69 mm (4.6 x 3.4 x 2.7 in) |
135 x 104 x 74 mm (5.3 x 4.1 x 2.9 in) |
Camera Weight | 356 g (12.6 oz) | 820 g (28.9 oz) |
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