Fujifilm X-M1 vs Pentax K-1
The Fujifilm X-M1 and the Pentax K-1 are two digital cameras that were officially introduced, respectively, in June 2013 and February 2016. The X-M1 is a mirrorless interchangeable lens camera, while the K-1 is a DSLR. The cameras are based on an APS-C (X-M1) and a full frame (K-1) sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Pentax provides 36.2 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 Fujifilm X-M1 and the Pentax K-1? 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 Fujifilm X-M1 and the Pentax K-1 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 measures are rounded to the nearest millimeter.
The X-M1 can be obtained in three different colors (black, silver, brown), while the K-1 is available in two color-versions (black, silver).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-1 is considerably larger (92 percent) than the Fujifilm X-M1. Moreover, the K-1 is substantially heavier (206 percent) than the X-M1. It is noteworthy in this context that the K-1 is splash and dust-proof, while the X-M1 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 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.
|1.||Fujifilm X-M1||117 mm||67 mm||39 mm||330 g||350||n||Jun 2013||699|
|2.||Pentax K-1||137 mm||110 mm||86 mm||1010 g||760||Y||Feb 2016||1,799|
|3.||Canon 5D Mark IV||151 mm||116 mm||76 mm||890 g||900||Y||Aug 2016||3,499|
|4.||Fujifilm X-A10||117 mm||67 mm||40 mm||331 g||410||n||Dec 2016||399|
|5.||Fujifilm X-E2S||129 mm||75 mm||37 mm||350 g||350||n||Jan 2016||699|
|6.||Fujifilm X-A2||117 mm||67 mm||40 mm||350 g||410||n||Jan 2015||399|
|7.||Fujifilm X-T10||118 mm||83 mm||41 mm||381 g||350||n||May 2015||799|
|8.||Fujifilm X-A1||117 mm||67 mm||39 mm||330 g||350||n||Sep 2013||399|
|9.||Fujifilm X-E2||129 mm||75 mm||37 mm||350 g||350||n||Oct 2013||999|
|10.||Fujifilm X-E1||129 mm||75 mm||38 mm||350 g||350||n||Sep 2012||999|
|11.||Fujifilm X-Pro1||140 mm||82 mm||43 mm||450 g||300||n||Jan 2012||1,699|
|12.||Nikon D500||147 mm||115 mm||81 mm||860 g||1240||Y||Jan 2016||1,999|
|13.||Olympus E-M1 II||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|14.||Pentax K-1 II||137 mm||110 mm||86 mm||1010 g||670||Y||Feb 2018||1,999|
|15.||Sony A99 II||143 mm||104 mm||76 mm||849 g||490||Y||Sep 2016||3,199|
|16.||Sony NEX-5R||111 mm||59 mm||39 mm||276 g||330||n||Aug 2012||749|
|17.||Sony NEX-F3||117 mm||67 mm||42 mm||314 g||470||n||May 2012||599|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The X-M1 was launched at a markedly lower price (by 61 percent) than the K-1, 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 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Fujifilm X-M1 features an APS-C sensor and the Pentax K-1 a full frame sensor. The sensor area in the K-1 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.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
With 36.2MP, the K-1 offers a higher resolution than the X-M1 (16MP), but the K-1 nevertheless has marginally larger individual pixels (pixel pitch of 4.88μm versus 4.80μm for the X-M1) due to its larger sensor. Moreover, the K-1 is a much more recent model (by 2 years and 7 months) than the X-M1, 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-1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-1 for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Fujifilm X-M1 are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.
Unlike the X-M1, the K-1 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 Fujifilm X-M1 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-25600. The corresponding ISO settings for the Pentax K-1 are ISO 100 to ISO 204800 (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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|2.||Pentax K-1||Full Frame||36.2||7360||4912||1080/60i||25.4||14.6||3280||96|
|3.||Canon 5D Mark IV||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|13.||Olympus E-M1 II||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|14.||Pentax K-1 II||Full Frame||36.2||7360||4912||1080/60i||..||..||..||..|
|15.||Sony A99 II||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the K-1 provides a faster frame rate than the X-M1. It can shoot movie footage at 1080/60i, while the Fujifilm is limited to 1080/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the K-1 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X-M1 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Fujifilm X-M1, the Pentax K-1, and comparable cameras.
|3.||Canon 5D Mark IV||optical||Y||3.2||1620||fixed||Y||1/8000s||7.0||n||n|
|13.||Olympus E-M1 II||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|14.||Pentax K-1 II||optical||Y||3.2||1037||full-flex||n||1/8000s||4.4||n||Y|
|15.||Sony A99 II||2400||Y||3.0||1229||full-flex||n||1/8000s||12.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The X-M1 has one, while the K-1 does not. While the built-in flash of the X-M1 is not very powerful, it can at times be useful as a fill-in light.
The Pentax K-1 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 X-M1 and the K-1 write their files to SDXC cards. The K-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X-M1 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Fujifilm X-M1 and Pentax K-1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|3.||Canon 5D Mark IV||Y||mono||mono||Y||Y||mini||3.0||Y||Y||-|
|13.||Olympus E-M1 II||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-|
|14.||Pentax K-1 II||Y||stereo||mono||Y||Y||micro||2.0||Y||-||-|
|15.||Sony A99 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y|
It is notable that the K-1 has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The X-M1 lacks such a headphone port.
Studio photographers will appreciate that the Pentax K-1 (unlike the X-M1) 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-1 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
Both the X-M1 and the K-1 have been discontinued, but can regularly be found used on eBay. The K-1 was replaced by the Pentax K-1 II, while the X-M1 does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Fujifilm and Pentax websites.
So what is the bottom line? Is the Fujifilm X-M1 better than the Pentax K-1 or vice versa? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Fujifilm X-M1:
- Faster burst: Shoots at higher frequency (5.6 vs 4.4 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (117x67mm vs 137x110mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 680g or 67 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 (61 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in June 2013).
Reasons to prefer the Pentax K-1:
- More detail: Has more megapixels (36.2 vs 16MP), which boosts linear resolution by 50%.
- 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 video: Provides higher movie framerates (1080/60i versus 1080/30p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- 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 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 (1037k vs 920k dots).
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (760 versus 350) 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.
- 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 modern: Reflects 2 years and 7 months of technical progress since the X-M1 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the K-1 is the clear winner of the contest (23 : 7 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 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 Fujifilm X-M1 and the Pentax K-1 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 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 X-M1 and the K-1 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
This is why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|1.||Fujifilm X-M1||3/5||+||77/100||4.5/5||4.5/5||Jun 2013||699|
|2.||Pentax K-1||5/5||..||84/100||5/5||5/5||Feb 2016||1,799|
|3.||Canon 5D Mark IV||4.5/5||+ +||87/100||4.5/5||4.5/5||Aug 2016||3,499|
|4.||Fujifilm X-A10||..||..||..||4/5||4/5||Dec 2016||399|
|5.||Fujifilm X-E2S||4.5/5||..||77/100||4.5/5||4.5/5||Jan 2016||699|
|6.||Fujifilm X-A2||4/5||..||..||4.5/5||4.5/5||Jan 2015||399|
|7.||Fujifilm X-T10||4.5/5||+ +||80/100||5/5||5/5||May 2015||799|
|8.||Fujifilm X-A1||..||..||..||4.5/5||4.5/5||Sep 2013||399|
|9.||Fujifilm X-E2||4/5||..||80/100||4.5/5||5/5||Oct 2013||999|
|10.||Fujifilm X-E1||4/5||+ +||79/100||4.5/5||4.5/5||Sep 2012||999|
|11.||Fujifilm X-Pro1||5/5||+ +||79/100||4.5/5||4.5/5||Jan 2012||1,699|
|12.||Nikon D500||5/5||+ +||91/100||4.5/5||5/5||Jan 2016||1,999|
|13.||Olympus E-M1 II||5/5||+ +||85/100||4.5/5||4.5/5||Sep 2016||1,999|
|14.||Pentax K-1 II||..||..||79/100||4.5/5||4.5/5||Feb 2018||1,999|
|15.||Sony A99 II||..||..||85/100||4.5/5||4.5/5||Sep 2016||3,199|
|16.||Sony NEX-5R||..||..||..||4.5/5||4.5/5||Aug 2012||749|
|17.||Sony NEX-F3||4/5||..||74/100||4.5/5||4.5/5||May 2012||599|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted 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 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
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Specifications: Fujifilm X-M1 vs Pentax K-1
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||Fujifilm X-M1||Pentax K-1|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Fujifilm X mount lenses||Pentax K mount lenses|
|Launch Date||June 2013||February 2016|
|Launch Price||USD 699||USD 1,799|
|Sensor Specs||Fujifilm X-M1||Pentax K-1|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.6 x 15.6 mm||35.9 x 24.0 mm|
|Sensor Area||368.16 mm2||861.6 mm2|
|Sensor Diagonal||28.3 mm||43.2 mm|
|Sensor Resolution||16 Megapixels||36.2 Megapixels|
|Image Resolution||4896 x 3264 pixels||7360 x 4912 pixels|
|Pixel Pitch||4.80 μm||4.88 μm|
|Pixel Density||4.34 MP/cm2||4.20 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/30p Video||1080/60i Video|
|ISO Setting||200 - 6,400 ISO||100 - 204,800 ISO|
|ISO Boost||100 - 25,600 ISO||no Enhancement|
|Image Processor||EXR Processor II||PRIME IV|
|DXO Sensor Quality (score)||..||96|
|DXO Color Depth (bits)||..||25.4|
|DXO Dynamic Range (EV)||..||14.6|
|DXO Low Light (ISO)||..||3280|
|Screen Specs||Fujifilm X-M1||Pentax K-1|
|Viewfinder Type||no viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.2inch|
|LCD Resolution||920k dots||1037k dots|
|LCD Attachment||Tilting screen||Fully flexible screen|
|Shooting Specs||Fujifilm X-M1||Pentax K-1|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||5.6 shutter flaps/s||4.4 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||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|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Fujifilm X-M1||Pentax K-1|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Geotagging||no internal GPS||GPS built-in|
|Body Specs||Fujifilm X-M1||Pentax K-1|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||350 shots per charge||760 shots per charge|
117 x 67 x 39 mm
(4.6 x 2.6 x 1.5 in)
137 x 110 x 86 mm
(5.4 x 4.3 x 3.4 in)
|Camera Weight||330 g (11.6 oz)||1010 g (35.6 oz)|
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