Fujifilm X-A2 vs Pentax K-5
The Fujifilm X-A2 and the Pentax K-5 are two digital cameras that were officially introduced, respectively, in January 2015 and September 2010. The X-A2 is a mirrorless interchangeable lens camera, while the K-5 is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Pentax provides 16.1 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Fujifilm X-A2||Pentax K-5|
|Mirrorless system camera||Digital single lens reflex|
|Fujifilm X mount lenses||Pentax K mount lenses|
|16 MP, APS-C Sensor||16.1 MP, APS-C Sensor|
|1080/30p Video||1080/25p Video|
|ISO 200-6400 (100-25600)||ISO 100-12800 (80-51200)|
|No viewfinder, LCD framing||Optical viewfinder|
|3.0" LCD, 920k dots||3.0" LCD, 921k dots|
|Tilting screen (no touchscreen)||Fixed screen (not touch-sensitive)|
|5.6 shutter flaps per second||7 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Not weather sealed||Weathersealed body|
|410 shots per battery charge||740 shots per battery charge|
|117 x 67 x 40 mm, 350 g||131 x 97 x 73 mm, 760 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A2 and the Pentax K-5? 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.
An illustration of the physical size and weight of the Fujifilm X-A2 and the Pentax K-5 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
The X-A2 can be obtained in three different colors (black, brown, white), while the K-5 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-5 is considerably larger (62 percent) than the Fujifilm X-A2. Moreover, the K-5 is substantially heavier (117 percent) than the X-A2. It is noteworthy in this context that the K-5 is splash and dust-proof, while the X-A2 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Fujifilm X-A2»||117 mm||67 mm||40 mm||350 g||410||n||Jan 2015||399||Fujifilm X-A2|
|Pentax K-5«||131 mm||97 mm||73 mm||760 g||740||Y||Sep 2010||1,099||Pentax K-5|
|Fujifilm X-A5« »||117 mm||68 mm||40 mm||361 g||450||n||Jan 2018||399||Fujifilm X-A5|
|Fujifilm X70« »||113 mm||64 mm||44 mm||340 g||330||n||Jan 2016||799||Fujifilm X70|
|Fujifilm X-A3« »||117 mm||67 mm||40 mm||339 g||410||n||Aug 2016||399||Fujifilm X-A3|
|Fujifilm X-A10« »||117 mm||67 mm||40 mm||331 g||410||n||Dec 2016||399||Fujifilm X-A10|
|Fujifilm X-E2S« »||129 mm||75 mm||37 mm||350 g||350||n||Jan 2016||699||Fujifilm X-E2S|
|Fujifilm X-T10« »||118 mm||83 mm||41 mm||381 g||350||n||May 2015||799||Fujifilm X-T10|
|Fujifilm X-A1« »||117 mm||67 mm||39 mm||330 g||350||n||Sep 2013||399||Fujifilm X-A1|
|Fujifilm X-E2« »||129 mm||75 mm||37 mm||350 g||350||n||Oct 2013||999||Fujifilm X-E2|
|Fujifilm X-M1« »||117 mm||67 mm||39 mm||330 g||350||n||Jun 2013||699||Fujifilm X-M1|
|Fujifilm X-E1« »||129 mm||75 mm||38 mm||350 g||350||n||Sep 2012||999||Fujifilm X-E1|
|Olympus E-M5 II« »||124 mm||85 mm||45 mm||469 g||310||Y||Feb 2015||1,099||Olympus E-M5 II|
|Pentax KP« »||132 mm||101 mm||76 mm||703 g||390||Y||Jan 2017||1,099||Pentax KP|
|Pentax K-3 II« »||131 mm||100 mm||77 mm||800 g||720||Y||Apr 2015||1,099||Pentax K-3 II|
|Pentax K-3« »||131 mm||100 mm||77 mm||800 g||560||Y||Oct 2013||1,299||Pentax K-3|
|Sony A77« »||143 mm||104 mm||81 mm||732 g||470||Y||Aug 2011||1,399||Sony A77|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The 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 X-A2 was launched at a markedly lower price (by 64 percent) than the K-5, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. 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. 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.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the K-5 is 1 percent bigger. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 16.1MP, the K-5 offers a higher resolution than the X-A2 (16MP), but the K-5 nevertheless has marginally larger individual pixels (pixel pitch of 4.81μm versus 4.80μm for the X-A2) due to its larger sensor. However, the X-A2 is a much more recent model (by 4 years and 3 months) than the K-5, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The Fujifilm X-A2 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-5 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-51200.
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.
|Fujifilm X-A2||APS-C||16.0||4896||3264||1080/30p||..||..||..||..||Fujifilm X-A2|
|Pentax K-5||APS-C||16.1||4928||3264||1080/25p||23.7||14.1||1162||82||Pentax K-5|
|Fujifilm X-A5||APS-C||24.0||6000||4000||4K/15p||..||..||..||..||Fujifilm X-A5|
|Fujifilm X70||APS-C||16.0||4896||3264||1080/60p||..||..||..||..||Fujifilm X70|
|Fujifilm X-A3||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Fujifilm X-A3|
|Fujifilm X-A10||APS-C||16.0||4896||3264||1080/30p||..||..||..||..||Fujifilm X-A10|
|Fujifilm X-E2S||APS-C||16.0||4896||3264||1080/60p||..||..||..||..||Fujifilm X-E2S|
|Fujifilm X-T10||APS-C||16.0||4896||3264||1080/60p||..||..||..||..||Fujifilm X-T10|
|Fujifilm X-A1||APS-C||16.0||4896||3264||1080/30p||..||..||..||..||Fujifilm X-A1|
|Fujifilm X-E2||APS-C||16.0||4896||3264||1080/60p||..||..||..||..||Fujifilm X-E2|
|Fujifilm X-M1||APS-C||16.0||4896||3264||1080/30p||..||..||..||..||Fujifilm X-M1|
|Fujifilm X-E1||APS-C||16.0||4896||3264||1080/24p||..||..||..||..||Fujifilm X-E1|
|Olympus E-M5 II||Four Thirds||15.9||4608||3456||1080/60p||23.0||12.5||842||73||Olympus E-M5 II|
|Pentax KP||APS-C||24.1||6016||4000||1080/60i||..||..||..||..||Pentax KP|
|Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80||Pentax K-3 II|
|Pentax K-3||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80||Pentax K-3|
|Sony A77||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
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 X-A2 provides a higher frame rate than the K-5. It can shoot video footage at 1080/30p, while the Pentax is limited to 1080/25p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the K-5 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X-A2 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-A2, the Pentax K-5, and comparable cameras.
|Fujifilm X-A2||none||n||3.0||920||tilting||n||1/4000s||5.6||Y||n||Fujifilm X-A2|
|Pentax K-5||optical||Y||3.0||921||fixed||n||1/8000s||7.0||Y||Y||Pentax K-5|
|Fujifilm X-A5||none||n||3.0||1040||tilting||Y||1/4000s||6.0||Y||n||Fujifilm X-A5|
|Fujifilm X70||optional||n||3.0||1040||tilting||Y||1/4000s||8.0||Y||n||Fujifilm X70|
|Fujifilm X-A3||none||n||3.0||1040||tilting||Y||1/4000s||6.0||Y||n||Fujifilm X-A3|
|Fujifilm X-A10||none||n||3.0||1040||tilting||n||1/4000s||6.0||Y||n||Fujifilm X-A10|
|Fujifilm X-E2S||2360||n||3.0||1040||fixed||n||1/4000s||7.0||Y||n||Fujifilm X-E2S|
|Fujifilm X-T10||2360||n||3.0||920||tilting||n||1/4000s||8.0||Y||n||Fujifilm X-T10|
|Fujifilm X-A1||none||n||3.0||920||tilting||n||1/4000s||5.6||Y||n||Fujifilm X-A1|
|Fujifilm X-E2||2360||n||3.0||1040||fixed||n||1/4000s||7.0||Y||n||Fujifilm X-E2|
|Fujifilm X-M1||none||n||3.0||920||tilting||n||1/4000s||5.6||Y||n||Fujifilm X-M1|
|Fujifilm X-E1||2360||n||2.8||460||fixed||n||1/4000s||6.0||Y||n||Fujifilm X-E1|
|Olympus E-M5 II||2360||n||3.0||1037||swivel||Y||1/8000s||10.0||n||Y||Olympus E-M5 II|
|Pentax KP||optical||n||3.0||921||tilting||n||1/6000s||7.0||Y||Y||Pentax KP|
|Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y||Pentax K-3 II|
|Pentax K-3||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||Y||Y||Pentax K-3|
|Sony A77||2359||Y||3.0||921||full-flex||n||1/8000s||12.0||Y||Y||Sony A77|
One feature that differentiates the K-5 and the X-A2 is in-body image stabilization (IBIS). The K-5 reduces the risk of handshake-induced blur with all attached lenses, while the X-A2 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.The X-A2 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-5 does not have a selfie-screen.
The Pentax K-5 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-A2 and the K-5 write their files to SDXC cards. The X-A2 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the K-5 cannot take advantage of Ultra High Speed SD cards.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Fujifilm X-A2 and Pentax K-5 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Fujifilm X-A2||Y||stereo||mono||-||-||mini||2.0||Y||-||-||Fujifilm X-A2|
|Pentax K-5||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Pentax K-5|
|Fujifilm X-A5||Y||stereo||mono||Y||-||mini||2.0||Y||-||Y||Fujifilm X-A5|
|Fujifilm X70||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X70|
|Fujifilm X-A3||Y||stereo||mono||-||-||micro||2.0||Y||-||-||Fujifilm X-A3|
|Fujifilm X-A10||-||stereo||mono||-||-||mini||2.0||Y||-||-||Fujifilm X-A10|
|Fujifilm X-E2S||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X-E2S|
|Fujifilm X-T10||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X-T10|
|Fujifilm X-A1||Y||stereo||mono||-||-||mini||2.0||Y||-||-||Fujifilm X-A1|
|Fujifilm X-E2||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X-E2|
|Fujifilm X-M1||Y||stereo||mono||-||-||mini||2.0||Y||-||-||Fujifilm X-M1|
|Fujifilm X-E1||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Fujifilm X-E1|
|Olympus E-M5 II||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Olympus E-M5 II|
|Pentax KP||Y||stereo||mono||Y||-||none||2.0||Y||-||-||Pentax KP|
|Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3 II|
|Pentax K-3||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3|
|Sony A77||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A77|
It is notable that the X-A2 offers wifi support, while the K-5 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.
Studio photographers will appreciate that the Pentax K-5 (unlike the X-A2) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the X-A2 and the K-5 have been discontinued, but can regularly be found used on eBay. The K-5 was replaced by the Pentax K-5 II, while the X-A2 was followed by the Fujifilm X-A3. 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 conclusions can be drawn? Which of the two cameras – the Fujifilm X-A2 or the Pentax K-5 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Fujifilm X-A2:
- Better video: Provides higher movie framerates (1080/30p versus 1080/25p).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- More compact: Is smaller (117x67mm vs 131x97mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 410g or 54 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced into a lower priced category (64 percent cheaper at launch).
- More modern: Reflects 4 years and 3 months of technical progress since the K-5 launch.
Reasons to prefer the Pentax K-5:
- Better sound: Can connect to an external microphone for higher quality sound 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.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (7 vs 5.6 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (740 versus 410) 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.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been around for much longer (launched in September 2010).
If the number of relative strengths (bullet points above) is taken as a guide, the K-5 comes out slightly ahead of the X-A2 (11 : 10 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 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 Fujifilm X-A2 and the Pentax K-5 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 X-A2 or the K-5 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.
This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 250D vs Pentax K-5
- Canon 450D vs Pentax K-5
- Canon XT vs Fujifilm X-A2
- Fujifilm X-A2 vs Nikon B600
- Fujifilm X-A2 vs Panasonic TZ100
- Fujifilm X-A2 vs Sony A7 II
- Fujifilm X-A2 vs Sony H300
- Fujifilm X-A3 vs Pentax K-5
- Fujifilm X-A5 vs Pentax K-5
- Nikon D70 vs Pentax K-5
- Panasonic FZ200 vs Pentax K-5
- Pentax K-5 vs Pentax Q
Specifications: Fujifilm X-A2 vs Pentax K-5
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-A2||Pentax K-5|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Fujifilm X mount lenses||Pentax K mount lenses|
|Launch Date||January 2015||September 2010|
|Launch Price||USD 399||USD 1099|
|Sensor Specs||Fujifilm X-A2||Pentax K-5|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.6 x 15.6 mm||23.7 x 15.7 mm|
|Sensor Area||368.16 mm2||372.09 mm2|
|Sensor Diagonal||28.3 mm||28.4 mm|
|Sensor Resolution||16 Megapixels||16.1 Megapixels|
|Image Resolution||4896 x 3264 pixels||4928 x 3264 pixels|
|Pixel Pitch||4.80 μm||4.81 μm|
|Pixel Density||4.34 MP/cm2||4.32 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||1080/25p Video|
|ISO Setting||200-6400 ISO||100-12800 ISO|
|ISO Boost||100-25600 ISO||80-51200 ISO|
|Image Processor||EXR Processor II||PRIME II|
|DXO Sensor Quality (score)||..||82|
|DXO Color Depth (bits)||..||23.7|
|DXO Dynamic Range (EV)||..||14.1|
|DXO Low Light (ISO)||..||1162|
|Screen Specs||Fujifilm X-A2||Pentax K-5|
|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||3.0 inch||3.0 inch|
|LCD Resolution||920k dots||921k dots|
|LCD Attachment||Tilting screen||Fixed screen|
|Shooting Specs||Fujifilm X-A2||Pentax K-5|
|Focus System||Contrast-detect AF||Phase-detect AF|
|Manual Focusing Aid||Focus Peaking||No Peaking Feature|
|Continuous Shooting||5.6 shutter flaps/s||7 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Fujifilm X-A2||Pentax K-5|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||no Wifi|
|Body Specs||Fujifilm X-A2||Pentax K-5|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||410 shots per charge||740 shots per charge|
117 x 67 x 40 mm
(4.6 x 2.6 x 1.6 in)
131 x 97 x 73 mm
(5.2 x 3.8 x 2.9 in)
|Camera Weight||350 g (12.3 oz)||760 g (26.8 oz)|
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