Pentax K-3 II vs Sigma fp
The Pentax K-3 II and the Sigma fp are two digital cameras that were officially introduced, respectively, in April 2015 and July 2019. The K-3 II is a DSLR, while the fp is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (K-3 II) and a full frame (fp) sensor. The Pentax has a resolution of 24.1 megapixels, whereas the Sigma provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax K-3 II and the Sigma fp? 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 physical size and weight of the Pentax K-3 II and the Sigma fp are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
The K-3 II can be obtained in two different colors (black, silver), while the fp 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 Sigma fp is considerably smaller (40 percent) than the Pentax K-3 II. Moreover, the fp is substantially lighter (47 percent) than the K-3 II. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the K-3 II gets 720 shots out of its Pentax D-LI90 battery, while the fp can take 280 images on a single charge of its Sigma BP-51 power pack. The power pack in the fp can be charged via the USB port, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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. | Pentax K-3 II | 131 mm | 100 mm | 77 mm | 800 g | 720 | Y | Apr 2015 | EUR 999 | ebay.com | |
2. | Sigma fp | 113 mm | 70 mm | 45 mm | 422 g | 280 | Y | Jul 2019 | EUR 1 999 | amazon.com | |
3. | Canon 80D | 139 mm | 105 mm | 79 mm | 730 g | 960 | Y | Feb 2016 | EUR 1 285 | ebay.com | |
4. | Fujifilm X-Pro2 | 141 mm | 83 mm | 46 mm | 495 g | 350 | Y | Jan 2016 | EUR 1 799 | ebay.com | |
5. | Fujifilm X-T2 | 133 mm | 92 mm | 49 mm | 507 g | 340 | Y | Jul 2016 | EUR 1 699 | ebay.com | |
6. | Nikon D7200 | 136 mm | 107 mm | 76 mm | 765 g | 1110 | Y | Mar 2015 | EUR 1 179 | ebay.com | |
7. | Panasonic FT7 | 117 mm | 76 mm | 37 mm | 319 g | 300 | Y | May 2018 | EUR 429 | ebay.com | |
8. | Panasonic GX8 | 133 mm | 78 mm | 63 mm | 487 g | 330 | Y | Jul 2015 | EUR 1 199 | ebay.com | |
9. | Panasonic S1 | 149 mm | 110 mm | 97 mm | 1017 g | 400 | Y | Feb 2019 | EUR 2 499 | amazon.com | |
10. | Pentax K-3 | 131 mm | 100 mm | 77 mm | 800 g | 560 | Y | Oct 2013 | EUR 1 299 | ebay.com | |
11. | Pentax K-3 III | 135 mm | 104 mm | 74 mm | 820 g | 800 | Y | Mar 2021 | EUR 1 999 | amazon.com | |
12. | Pentax K-5 | 131 mm | 97 mm | 73 mm | 760 g | 740 | Y | Sep 2010 | EUR 999 | ebay.com | |
13. | Pentax K-5 II | 131 mm | 97 mm | 73 mm | 760 g | 740 | Y | Sep 2012 | EUR 999 | ebay.com | |
14. | Pentax K-70 | 126 mm | 93 mm | 74 mm | 688 g | 410 | Y | Jun 2016 | EUR 699 | ebay.com | |
15. | Pentax KP | 132 mm | 101 mm | 76 mm | 703 g | 390 | Y | Jan 2017 | EUR 1 299 | ebay.com | |
16. | Pentax K-S2 | 123 mm | 91 mm | 73 mm | 678 g | 410 | Y | Feb 2015 | EUR 699 | ebay.com | |
17. | Sony A7 | 127 mm | 94 mm | 48 mm | 474 g | 340 | Y | Oct 2013 | EUR 1 499 | 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 K-3 II was launched at a markedly lower price (by 42 percent) than the fp, 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 imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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.
Of the two cameras under consideration, the Pentax K-3 II features an APS-C sensor and the Sigma fp a full frame sensor. The sensor area in the fp is 134 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the Pentax K-3 II offers a higher resolution of 24.1 megapixels, compared with 24 MP of the Sigma fp. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.90μm versus 5.98μm for the fp). Moreover, it should be noted that the fp is much more recent (by 4 years and 2 months) than the K-3 II, 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.
Unlike the fp, the K-3 II 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 Pentax K-3 II has a native sensitivity range from ISO 100 to ISO 51200. The corresponding ISO settings for the Sigma fp are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.
In terms of underlying technology, the K-3 II is build around a CMOS sensor, while the fp uses a BSI-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.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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. | Pentax K-3 II | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.6 | 13.6 | 1106 | 80 | |
2. | Sigma fp | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.2 | 14.2 | 2829 | 94 | |
3. | Canon 80D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.2 | 1135 | 79 | |
4. | Fujifilm X-Pro2 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.7 | 13.0 | 1608 | 80 | |
5. | Fujifilm X-T2 | APS-C | 24.0 | 6000 | 4000 | 4K/30p | 23.8 | 13.1 | 1653 | 81 | |
6. | Nikon D7200 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.5 | 14.6 | 1333 | 87 | |
7. | Panasonic FT7 | 1/2.3 | 20.2 | 5184 | 3888 | 4K/30p | 20.6 | 12.1 | 1028 | 51 | |
8. | Panasonic GX8 | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.5 | 12.6 | 806 | 75 | |
9. | Panasonic S1 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.2 | 14.5 | 3333 | 95 | |
10. | Pentax K-3 | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.7 | 13.4 | 1216 | 80 | |
11. | Pentax K-3 III | APS-C | 25.6 | 6192 | 4128 | 4K/30p | 24.2 | 13.7 | 2083 | 85 | |
12. | Pentax K-5 | APS-C | 16.1 | 4928 | 3264 | 1080/25p | 23.7 | 14.1 | 1162 | 82 | |
13. | Pentax K-5 II | APS-C | 16.1 | 4928 | 3264 | 1080/25p | 23.8 | 14.1 | 1235 | 82 | |
14. | Pentax K-70 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 23.8 | 13.1 | 1639 | 80 | |
15. | Pentax KP | APS-C | 24.1 | 6016 | 4000 | 1080/60i | 23.9 | 13.2 | 1699 | 81 | |
16. | Pentax K-S2 | APS-C | 20.0 | 5472 | 3648 | 1080/30p | 23.6 | 12.9 | 1514 | 79 | |
17. | Sony A7 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.8 | 14.2 | 2248 | 90 | |
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. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the fp provides a better video resolution than the K-3 II. It can shoot movie footage at 4K/30p, while the Pentax is limited to 1080/60i.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the K-3 II has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the fp relies on live view and the rear LCD for framing. That said, the fp can be equipped with an optional viewfinder – the EVF-11. The following table reports on some other key feature differences and similarities of the Pentax K-3 II, the Sigma fp, and comparable cameras.
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. | Pentax K-3 II | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | n | Y | |
2. | Sigma fp | optional | n | 3.2 / 2100 | fixed | Y | 1/8000s | 12.0/s | n | n | |
3. | Canon 80D | optical | Y | 3.0 / 1040 | swivel | Y | 1/8000s | 7.0/s | Y | n | |
4. | Fujifilm X-Pro2 | 2360 | n | 3.0 / 1620 | fixed | n | 1/8000s | 8.0/s | n | n | |
5. | Fujifilm X-T2 | 2360 | n | 3.0 / 1040 | full-flex | n | 1/8000s | 8.0/s | n | n | |
6. | Nikon D7200 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 6.0/s | Y | n | |
7. | Panasonic FT7 | 1170 | n | 3.0 / 1040 | fixed | n | 1/1300s | 10.0/s | Y | Y | |
8. | Panasonic GX8 | 2360 | n | 3.0 / 1040 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
9. | Panasonic S1 | 5760 | Y | 3.2 / 2100 | full-flex | Y | 1/8000s | 9.0/s | n | Y | |
10. | Pentax K-3 | optical | Y | 3.2 / 1037 | fixed | n | 1/8000s | 8.3/s | Y | Y | |
11. | Pentax K-3 III | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 12.0/s | n | Y | |
12. | Pentax K-5 | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 7.0/s | Y | Y | |
13. | Pentax K-5 II | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 7.0/s | Y | Y | |
14. | Pentax K-70 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 6.0/s | Y | Y | |
15. | Pentax KP | optical | n | 3.0 / 921 | tilting | n | 1/6000s | 7.0/s | Y | Y | |
16. | Pentax K-S2 | optical | n | 3.0 / 921 | swivel | n | 1/6000s | 5.4/s | Y | Y | |
17. | Sony A7 | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that is present on the K-3 II, but is missing on the fp is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The 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 fp 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 Pentax K-3 II and the Sigma fp 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 K-3 II and the fp write their files to SDXC cards. The K-3 II features dual card slots, which can be very useful in case a memory card fails. In contrast, the fp only has one slot. The fp supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the K-3 II can use UHS-I cards (up to 104 MB/s).
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 Pentax K-3 II and Sigma fp 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. | Pentax K-3 II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
2. | Sigma fp | Y | stereo / mono | Y | - | micro | 3.1 | - | - | - | |
3. | Canon 80D | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
4. | Fujifilm X-Pro2 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
5. | Fujifilm X-T2 | Y | stereo / mono | Y | - | micro | 3.0 | Y | - | - | |
6. | Nikon D7200 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
7. | Panasonic FT7 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
8. | Panasonic GX8 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
9. | Panasonic S1 | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y | |
10. | Pentax K-3 | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
11. | Pentax K-3 III | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
12. | Pentax K-5 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
13. | Pentax K-5 II | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
14. | Pentax K-70 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
15. | Pentax KP | Y | stereo / mono | Y | - | - | 2.0 | Y | - | - | |
16. | Pentax K-S2 | Y | mono / mono | Y | - | micro | 2.0 | Y | Y | - | |
17. | Sony A7 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the K-3 II has a headphone jack, which is not present on the fp This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.
Studio photographers will appreciate that the Pentax K-3 II (unlike the fp) 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 II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The fp is a recent model that features in the current product line-up of Sigma. In contrast, the K-3 II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-3 II was succeeded by the Pentax K-3 III. Further information on the features and operation of the K-3 II and fp can be found, respectively, in the Pentax K-3 II Manual (free pdf) or the online Sigma fp Manual.
Review summary
So what is the bottom line? Is the Pentax K-3 II better than the Sigma fp or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Pentax K-3 II:
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Longer lasting: Can take more shots (720 versus 280) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More affordable: Was introduced into a lower priced category (42 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in April 2015).
Reasons to prefer the Sigma fp:
- 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 video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- More detailed LCD: Has a higher resolution rear screen (2100k vs 1037k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (12 vs 8.3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (113x70mm vs 131x100mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 378g or 47 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More modern: Reflects 4 years and 2 months of technical progress since the K-3 II launch.
If the number of relative strengths (bullet points above) is taken as a guide, the fp is the clear winner of the contest (15 : 11 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 Pentax K-3 II and the Sigma fp place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the K-3 II or the fp perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
Expert reviews
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax K-3 II | 4.5/5 | .. | .. | .. | 5/5 | 5/5 | Apr 2015 | EUR 999 | ebay.com | |
2. | Sigma fp | 4/5 | .. | 4/5 | .. | 4/5 | 4.5/5 | Jul 2019 | EUR 1 999 | amazon.com | |
3. | Canon 80D | 4/5 | + + | 4.5/5 | 84/100 | 4.5/5 | 4.5/5 | Feb 2016 | EUR 1 285 | ebay.com | |
4. | Fujifilm X-Pro2 | .. | + | .. | 83/100 | 4.5/5 | 4.5/5 | Jan 2016 | EUR 1 799 | ebay.com | |
5. | Fujifilm X-T2 | 5/5 | + + | .. | 86/100 | 4.5/5 | 5/5 | Jul 2016 | EUR 1 699 | ebay.com | |
6. | Nikon D7200 | 4/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Mar 2015 | EUR 1 179 | ebay.com | |
7. | Panasonic FT7 | .. | + | .. | .. | 3.5/5 | 3.5/5 | May 2018 | EUR 429 | ebay.com | |
8. | Panasonic GX8 | 5/5 | + | .. | 82/100 | 4.5/5 | 4.5/5 | Jul 2015 | EUR 1 199 | ebay.com | |
9. | Panasonic S1 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4/5 | Feb 2019 | EUR 2 499 | amazon.com | |
10. | Pentax K-3 | 4/5 | .. | .. | 83/100 | 5/5 | 5/5 | Oct 2013 | EUR 1 299 | ebay.com | |
11. | Pentax K-3 III | 4/5 | .. | 3/5 | .. | 4.5/5 | .. | Mar 2021 | EUR 1 999 | amazon.com | |
12. | Pentax K-5 | 4/5 | .. | .. | 83/100 | 5/5 | 4.5/5 | Sep 2010 | EUR 999 | ebay.com | |
13. | Pentax K-5 II | 5/5 | .. | .. | 80/100 | 5/5 | 4.5/5 | Sep 2012 | EUR 999 | ebay.com | |
14. | Pentax K-70 | 4.5/5 | .. | 4/5 | 79/100 | 4.5/5 | 4.5/5 | Jun 2016 | EUR 699 | ebay.com | |
15. | Pentax KP | 4/5 | .. | 3/5 | 82/100 | 5/5 | 4.5/5 | Jan 2017 | EUR 1 299 | ebay.com | |
16. | Pentax K-S2 | 4.5/5 | .. | .. | .. | 5/5 | 4.5/5 | Feb 2015 | EUR 699 | ebay.com | |
17. | Sony A7 | 5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Oct 2013 | EUR 1 499 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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 make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 650D vs Sigma fp
- Epson R-D1 vs Sigma fp
- Nikon D610 vs Sigma fp
- Olympus E-M10 vs Pentax K-3 II
- Olympus E-P5 vs Sigma fp
- Olympus Stylus 1s vs Sigma fp
- Panasonic G7 vs Pentax K-3 II
- Panasonic GF3 vs Pentax K-3 II
- Panasonic GX1 vs Pentax K-3 II
- Pentax K-3 II vs Sony NEX-5T
- Pentax K-3 II vs Sony RX0
- Sigma fp vs Sony A68
Specifications: Pentax K-3 II vs Sigma fp
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 | Pentax K-3 II | Sigma fp |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Pentax K mount lenses | Leica L mount lenses |
Launch Date | April 2015 | July 2019 |
Launch Price | USD 1,099 | USD 1,899 |
Sensor Specs | Pentax K-3 II | Sigma fp |
Sensor Technology | CMOS | BSI-CMOS |
Sensor Format | APS-C Sensor | Full Frame Sensor |
Sensor Size | 23.5 x 15.6 mm | 35.9 x 23.9 mm |
Sensor Area | 366.6 mm2 | 858.01 mm2 |
Sensor Diagonal | 28.2 mm | 43.1 mm |
Crop Factor | 1.5x | 1.0x |
Sensor Resolution | 24.1 Megapixels | 24 Megapixels |
Image Resolution | 6016 x 4000 pixels | 6000 x 4000 pixels |
Pixel Pitch | 3.90 μm | 5.98 μm |
Pixel Density | 6.56 MP/cm2 | 2.80 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 1080/60i Video | 4K/30p Video |
ISO Setting | 100 - 51,200 ISO | 100 - 25,600 ISO |
ISO Boost | no Enhancement | 6 - 102,400 ISO |
DXO Sensor Quality (score) | 80 | .. |
DXO Color Depth (bits) | 23.6 | .. |
DXO Dynamic Range (EV) | 13.6 | .. |
DXO Low Light (ISO) | 1106 | .. |
Screen Specs | Pentax K-3 II | Sigma fp |
Viewfinder Type | Optical viewfinder | Viewfinder optional |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.63x | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.2inch | 3.2inch |
LCD Resolution | 1037k dots | 2100k dots |
LCD Attachment | Fixed screen | Fixed screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Pentax K-3 II | Sigma fp |
Focus System | Phase-detect AF | Contrast-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/8000s |
Continuous Shooting | 8.3 shutter flaps/s | 12 shutter flaps/s |
Electronic Shutter | no E-Shutter | up to 1/8000s |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | In-body stabilization | Lens stabilization only |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Single card slot |
UHS card support | UHS-I | UHS-II |
Connectivity Specs | Pentax K-3 II | Sigma fp |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | no PC Sync |
USB Connector | USB 3.0 | USB 3.1 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | Headphone port | no Headphone port |
Wifi Support | no Wifi | no Wifi |
Geotagging | GPS built-in | no internal GPS |
Body Specs | Pentax K-3 II | Sigma fp |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Pentax D-LI90 | Sigma BP-51 |
Battery Life (CIPA) | 720 shots per charge | 280 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
131 x 100 x 77 mm (5.2 x 3.9 x 3.0 in) |
113 x 70 x 45 mm (4.4 x 2.8 x 1.8 in) |
Camera Weight | 800 g (28.2 oz) | 422 g (14.9 oz) |
Did you notice an error on this page? If so, please get in touch, so that we can correct the information.