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Fujifilm X-A3 vs Pentax K-1

The Fujifilm X-A3 and the Pentax K-1 are two digital cameras that were officially introduced, respectively, in August 2016 and February 2016. The X-A3 is a mirrorless interchangeable lens camera, while the K-1 is a DSLR. The cameras are based on an APS-C (X-A3) and a full frame (K-1) sensor. The Fujifilm has a resolution of 24 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.

Headline Specifications
Fujifilm X-A3
versus
Pentax K-1
Fujifilm X-A3   Pentax K-1
Mirrorless system camera Digital single lens reflex
Fujifilm X mount lenses Pentax K mount lenses
24 MP – APS-C sensor 36.2 MP – Full Frame sensor
1080/60p Video 1080/60i Video
ISO 200-6,400 (100 - 25,600) ISO 100-204,800
No viewfinder, LCD framing Optical viewfinder
3.0" LCD – 1040k dots 3.2" LCD – 1037k dots
Tilting touchscreen Fully flexible screen (no touchscreen)
6 shutter flaps per second 4.4 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
410 shots per battery charge760 shots per battery charge
117 x 67 x 40 mm, 339 g 137 x 110 x 86 mm, 1010 g
logo
Check X-A3 offers at
ebay.com
logo
Check K-1 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-A3 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.

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Body comparison

An illustration of the physical size and weight of the Fujifilm X-A3 and the Pentax K-1 is provided 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 X-A3 can be obtained in three different colors (silver, brown, pink), while the K-1 is available in two color-versions (black, silver).

Size Fujifilm X-A3 vs Pentax K-1
Compare X-A3 versus K-1 top
Comparison X-A3 or K-1 rear

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-A3. Moreover, the K-1 is substantially heavier (198 percent) than the X-A3. It is noteworthy in this context that the K-1 is splash and dust-proof, while the X-A3 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 X-A3 gets 410 shots out of its Fujifilm NP-W126S battery, while the K-1 can take 760 images on a single charge of its Pentax D-LI90 power pack. The power pack in the X-A3 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X-A3 117 mm 67 mm 40 mm 339 g 410 n Aug 2016 399ebay.com
2.
 
Pentax K-1 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799ebay.com
3.
 
Canon 5D Mark IV 151 mm 116 mm 76 mm 890 g 900 Y Aug 2016 3,499 amazon.com
4.
 
Fujifilm X-T200 121 mm 84 mm 55 mm 370 g 270 n Jan 2020 699ebay.com
5.
 
Fujifilm X-T30 118 mm 83 mm 47 mm 383 g 380 n Feb 2019 899ebay.com
6.
 
Fujifilm X-A7 119 mm 68 mm 41 mm 320 g 440 n Sep 2019 499ebay.com
7.
 
Fujifilm X-A5 117 mm 68 mm 40 mm 361 g 450 n Jan 2018 399ebay.com
8.
 
Fujifilm X-E3 121 mm 74 mm 43 mm 337 g 350 n Sep 2017 899ebay.com
9.
 
Fujifilm X-T20 118 mm 83 mm 41 mm 383 g 350 n Jan 2017 899ebay.com
10.
 
Fujifilm X-A10 117 mm 67 mm 40 mm 331 g 410 n Dec 2016 399ebay.com
11.
 
Fujifilm X-A2 117 mm 67 mm 40 mm 350 g 410 n Jan 2015 399ebay.com
12.
 
Fujifilm X-T10 118 mm 83 mm 41 mm 381 g 350 n May 2015 799ebay.com
13.
 
Fujifilm X-A1 117 mm 67 mm 39 mm 330 g 350 n Sep 2013 399ebay.com
14.
 
Nikon D500 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999ebay.com
15.
 
Pentax K-1 II 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 1,999 amazon.com
16.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 3,199 amazon.com
17.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will naturally be influenced heavily by the price. 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-A3 was launched at a markedly lower price (by 78 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.

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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Fujifilm X-A3 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.

Fujifilm X-A3 and Pentax K-1 sensor measures

With 36.2MP, the K-1 offers a higher resolution than the X-A3 (24MP), but the K-1 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 3.92μm for the X-A3) due to its larger sensor. However, the X-A3 is a somewhat more recent model (by 6 months) than the K-1, and its sensor might 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 the K-1 has no anti-alias filter installed, so that it can capture all the detail its 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-A3 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.

Unlike the X-A3, 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-A3 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).

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.

X-A3 versus K-1 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Fujifilm X-A3 APS-C 24.0 6000 40001080/60p23.813.1166481
2.
 
Pentax K-1 Full Frame 36.2 7360 49121080/60i25.414.6328096
3.
 
Canon 5D Mark IV Full Frame 30.1 6720 44804K/30p24.813.6299591
4.
 
Fujifilm X-T200 APS-C 24.0 6000 40004K/30p24.113.6199184
5.
 
Fujifilm X-T30 APS-C 26.0 6240 41604K/30p24.113.5189583
6.
 
Fujifilm X-A7 APS-C 24.0 6000 40004K/30p24.113.6195584
7.
 
Fujifilm X-A5 APS-C 24.0 6000 40004K/15p24.013.3180082
8.
 
Fujifilm X-E3 APS-C 24.0 6000 40004K/30p23.913.3176482
9.
 
Fujifilm X-T20 APS-C 24.0 6000 40004K/30p23.913.2170481
10.
 
Fujifilm X-A10 APS-C 16.0 4896 32641080/30p23.913.2169181
11.
 
Fujifilm X-A2 APS-C 16.0 4896 32641080/30p23.612.8151579
12.
 
Fujifilm X-T10 APS-C 16.0 4896 32641080/60p23.712.9154679
13.
 
Fujifilm X-A1 APS-C 16.0 4896 32641080/30p23.412.6139076
14.
 
Nikon D500 APS-C 20.7 5568 37124K/30p24.014.0132483
15.
 
Pentax K-1 II Full Frame 36.2 7360 49121080/60i25.114.0269893
16.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
17.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the X-A3 provides a higher frame rate than the K-1. It can shoot video footage at 1080/60p, while the Pentax is limited to 1080/60i.

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Feature comparison

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-A3 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Fujifilm X-A3 and Pentax K-1 in connection with corresponding information for a sample of similar cameras.

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Core Features
# image 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.
 
Fujifilm X-A3none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
2.
 
Pentax K-1optical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
3.
 
Canon 5D Mark IVoptical Y3.2 / 1620 fixed Y 1/8000s 7.0/s n n
4.
 
Fujifilm X-T2002360 n3.5 / 2780 swivel Y 1/4000s 8.0/s Y n
5.
 
Fujifilm X-T302360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
6.
 
Fujifilm X-A7none n3.5 / 2760 swivel Y 1/4000s 6.0/s Y n
7.
 
Fujifilm X-A5none n3.0 / 1040 tilting Y 1/4000s 6.0/s Y n
8.
 
Fujifilm X-E32360 n3.0 / 1040 fixed Y 1/4000s 8.0/s n n
9.
 
Fujifilm X-T202360 n3.0 / 1040 tilting Y 1/4000s 8.0/s Y n
10.
 
Fujifilm X-A10none n3.0 / 1040 tilting n 1/4000s 6.0/s Y n
11.
 
Fujifilm X-A2none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
12.
 
Fujifilm X-T102360 n3.0 / 920 tilting n 1/4000s 8.0/s Y n
13.
 
Fujifilm X-A1none n3.0 / 920 tilting n 1/4000s 5.6/s Y n
14.
 
Nikon D500optical Y3.2 / 2359 tilting Y 1/8000s 10.0/s n n
15.
 
Pentax K-1 IIoptical Y3.2 / 1037 full-flex n 1/8000s 4.4/s n Y
16.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
17.
 
Sony A99 II2400 Y3.0 / 1229 full-flex n 1/8000s 12.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One difference between the cameras concerns the presence of an on-board flash. The X-A3 has one, while the K-1 does not. While the built-in flash of the X-A3 is not very powerful, it can at times be useful as a fill-in light.

The X-A3 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-1 does not have a selfie-screen.

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 X-A3 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 Fujifilm X-A3 and the Pentax K-1 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 X-A3 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-A3 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.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Fujifilm X-A3 and Pentax K-1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Fujifilm X-A3Ystereo / mono--micro2.0Y--
2.
 
Pentax K-1Ystereo / monoYYmicro2.0Y--
3.
 
Canon 5D Mark IVYmono / monoYYmini3.0YY-
4.
 
Fujifilm X-T200Ystereo / monoYYmicro3.1Y-Y
5.
 
Fujifilm X-T30Ystereo / monoY-micro3.1Y-Y
6.
 
Fujifilm X-A7Ystereo / monoY-micro2.0Y-Y
7.
 
Fujifilm X-A5Ystereo / monoY-micro2.0Y-Y
8.
 
Fujifilm X-E3Ystereo / monoY-micro2.0Y-Y
9.
 
Fujifilm X-T20Ystereo / monoY-micro2.0Y--
10.
 
Fujifilm X-A10-stereo / mono--micro2.0Y--
11.
 
Fujifilm X-A2Ystereo / mono--mini2.0Y--
12.
 
Fujifilm X-T10Ystereo / monoY-micro2.0Y--
13.
 
Fujifilm X-A1Ystereo / mono--mini2.0Y--
14.
 
Nikon D500Ystereo / monoYYmini3.0YYY
15.
 
Pentax K-1 IIYstereo / monoYYmicro2.0Y--
16.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
17.
 
Sony A99 IIYstereo / monoYYmicro2.0YYY
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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-A3 lacks such a headphone port.

Studio photographers will appreciate that the Pentax K-1 (unlike the X-A3) 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-A3 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-A3 was followed by the Fujifilm X-A5. Further information on the features and operation of the X-A3 and K-1 can be found, respectively, in the Fujifilm X-A3 Manual (free pdf) or the online Pentax K-1 Manual.

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Review summary

So what conclusions can be drawn? Is the Fujifilm X-A3 better than the Pentax K-1 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Fujifilm X-A3:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6 vs 4.4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • More compact: Is smaller (117x67mm vs 137x110mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 671g or 66 percent) and hence easier to carry around.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • 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 (78 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 6 months after the K-1).

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Arguments in favor of the Pentax K-1:

  • More detail: Has more megapixels (36.2 vs 24MP), which boosts linear resolution by 23%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • 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 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.
  • Longer lasting: Gets more shots (760 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.
  • 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 heavily discounted: Has been on the market for longer (launched in February 2016).

If the count of individual advantages (bullet points above) is taken as a guide, the K-1 is the clear winner of the contest (21 : 13 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.

X-A3 13:21 K-1

How about other alternatives? Do the specifications of the Fujifilm X-A3 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the X-A3 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.

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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Fujifilm X-A3......74/1004.5/54/5 Aug 2016 399ebay.com
2.
 
Pentax K-15/5....84/1005/55/5 Feb 2016 1,799ebay.com
3.
 
Canon 5D Mark IV4.5/5+ +4/587/1004.5/54.5/5 Aug 2016 3,499 amazon.com
4.
 
Fujifilm X-T2003.5/5..4/582/1004/54.5/5 Jan 2020 699ebay.com
5.
 
Fujifilm X-T305/5+ +5/584/1004.5/54.5/5 Feb 2019 899ebay.com
6.
 
Fujifilm X-A73/5..3.5/581/1004/53.5/5 Sep 2019 499ebay.com
7.
 
Fujifilm X-A5..+4.1/5..4/53.5/5 Jan 2018 399ebay.com
8.
 
Fujifilm X-E34.5/5+4.5/584/1004.5/54.5/5 Sep 2017 899ebay.com
9.
 
Fujifilm X-T205/5+ +5/582/1005/54.5/5 Jan 2017 899ebay.com
10.
 
Fujifilm X-A10........4/54/5 Dec 2016 399ebay.com
11.
 
Fujifilm X-A24/5......4.5/54.5/5 Jan 2015 399ebay.com
12.
 
Fujifilm X-T104.5/5+ +..80/1005/55/5 May 2015 799ebay.com
13.
 
Fujifilm X-A1........4.5/54.5/5 Sep 2013 399ebay.com
14.
 
Nikon D5005/5+ +4.7/591/1004.5/55/5 Jan 2016 1,999ebay.com
15.
 
Pentax K-1 II....4.5/579/1004.5/54.5/5 Feb 2018 1,999 amazon.com
16.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 3,199 amazon.com
17.
 
Sony A99 II....4.5/585/1004.5/54.5/5 Sep 2016 3,199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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ebay.com
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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu 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.

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    Specifications: Fujifilm X-A3 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 Specifications
    Camera Model Fujifilm X-A3 Pentax K-1
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Fujifilm X mount lenses Pentax K mount lenses
    Launch Date August 2016 February 2016
    Launch Price USD 399 USD 1,799
    Sensor Specs Fujifilm X-A3 Pentax K-1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.7 mm 35.9 x 24.0 mm
    Sensor Area 368.95 mm2 861.6 mm2
    Sensor Diagonal 28.3 mm 43.2 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 24 Megapixels 36.2 Megapixels
    Image Resolution 6000 x 4000 pixels 7360 x 4912 pixels
    Pixel Pitch 3.92 μm 4.88 μm
    Pixel Density 6.50 MP/cm2 4.20 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 1080/60i Video
    ISO Setting 200 - 6,400 ISO 100 - 204,800 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    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-A3 Pentax K-1
    Viewfinder Type no viewfinder Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.70x
    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 1037k dots
    LCD Attachment Tilting screen Fully flexible screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Fujifilm X-A3 Pentax K-1
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 4.4 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-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 UHS-I
    Connectivity Specs Fujifilm X-A3 Pentax K-1
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro 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-A3 Pentax K-1
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Fujifilm NP-W126S Pentax D-LI90
    Battery Life (CIPA)410 shots per charge760 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 117 x 67 x 40 mm
    (4.6 x 2.6 x 1.6 in)
    137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    Camera Weight 339 g (12.0 oz) 1010 g (35.6 oz)
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