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Fujifilm X100V vs Pentax K-3 III

The Fujifilm X100V and the Pentax K-3 III are two enthusiast cameras that were officially introduced, respectively, in February 2020 and March 2021. The X100V is a fixed lens compact, while the K-3 III is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 26 megapixels, whereas the Pentax provides 25.6 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Fujifilm X100V
versus
Pentax K-3 III
Fujifilm X100V   Pentax K-3 III
Fixed lens compact camera Digital single lens reflex
35mm f/2.0 Pentax K mount lenses
26 MP – APS-C sensor 25.6 MP – APS-C sensor
4K/30p Video 4K/30p Video
ISO 160-12,800 (80 - 51,200) ISO 100-160,000
Electronic viewfinder (3690k dots) Optical viewfinder
3.0" LCD – 1620k dots 3.2" LCD – 1620k dots
Tilting touchscreen Fixed touchscreen
11 shutter flaps per second 12 shutter flaps per second
no shake reductionIn-body stabilization
Weathersealed bodyWeathersealed body
420 shots per battery charge800 shots per battery charge
128 x 75 x 53 mm, 478 g 135 x 104 x 74 mm, 820 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X100V and the Pentax K-3 III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Fujifilm X100V and the Pentax K-3 III. 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.

Both cameras are available in two different colors (black, silver).

Size Fujifilm X100V vs Pentax K-3 III
Compare X100V versus K-3 III top
Comparison X100V or K-3 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 III is considerably larger (46 percent) than the Fujifilm X100V. 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 and possibly misleading, as the X100V has a lens built in, whereas the K-3 III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the X100V gets 420 shots out of its Fujifilm NP-W126S battery, while the K-3 III can take 800 images on a single charge of its Pentax D-LI90 power pack. The power pack in the X100V can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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.

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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 X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 1,399ebay.com
2.
 
Pentax K-3 III 135 mm 104 mm 74 mm 820 g 800 Y Mar 2021 1,999 amazon.com
3.
 
Canon RP 133 mm 85 mm 70 mm 485 g 250 n Feb 2019 1,299 amazon.com
4.
 
Canon G1 X Mark III 115 mm 78 mm 51 mm 399 g 200 Y Oct 2017 1,299ebay.com
5.
 
Fujifilm X100VI 128 mm 75 mm 55 mm 521 g 450 Y Feb 2024 1,599 amazon.com
6.
 
Fujifilm X-Pro3 141 mm 83 mm 46 mm 497 g 440 Y Oct 2019 1,799 amazon.com
7.
 
Fujifilm X-T3 133 mm 93 mm 59 mm 539 g 390 Y Sep 2018 1,499ebay.com
8.
 
Fujifilm X100F 127 mm 75 mm 52 mm 469 g 390 n Jan 2017 1,299ebay.com
9.
 
Fujifilm X-Pro2 141 mm 83 mm 46 mm 495 g 350 Y Jan 2016 1,699ebay.com
10.
 
Fujifilm X-T2 133 mm 92 mm 49 mm 507 g 340 Y Jul 2016 1,599ebay.com
11.
 
Fujifilm X100T 127 mm 74 mm 52 mm 440 g 330 n Sep 2014 1,299ebay.com
12.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 amazon.com
13.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099ebay.com
14.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 649ebay.com
15.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099ebay.com
16.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
17.
 
Sigma fp 113 mm 70 mm 45 mm 422 g 280 Y Jul 2019 1,899 amazon.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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The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X100V was launched at a lower price than the K-3 III, despite having a lens built in. 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the K-3 III is 2 percent smaller. 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.

Fujifilm X100V and Pentax K-3 III sensor measures

With 26MP, the X100V offers a slightly higher resolution than the K-3 III (25.6MP), but the X100V nevertheless has the same individual pixel size (pixel pitch of 3.76μm) as the K-3 III due to its larger sensor. Moreover, the K-3 III is a somewhat more recent model (by 1 year and 1 month) than the X100V, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 X100V has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the X100V, the K-3 III has the capacity to capture high quality composite images (YESMP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Fujifilm X100V has a native sensitivity range from ISO 160 to ISO 12800, which can be extended to ISO 80-51200. The corresponding ISO settings for the Pentax K-3 III are ISO 100 to ISO 160000 (no boost).

In terms of underlying technology, the X100V is build around a BSI-CMOS sensor, while the K-3 III uses a CMOS imager. The X100V uses Fujifilm's X-Trans layout of photosites, while the K-3 III employs the more common Bayer array.

X100V versus K-3 III MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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 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 X100V APS-C 26.0 6240 41604K/30p24.213.6199684
2.
 
Pentax K-3 III APS-C 25.6 6192 41284K/30p24.213.7208385
3.
 
Canon RP Full Frame 26.0 6240 41604K/30p24.311.9297785
4.
 
Canon G1 X Mark III APS-C 24.0 6000 40001080/60p23.813.2164981
5.
 
Fujifilm X100VI APS-C 39.8 7728 51526.2K/30p24.314.1239786
6.
 
Fujifilm X-Pro3 APS-C 26.0 6240 41604K/30p24.113.6196884
7.
 
Fujifilm X-T3 APS-C 26.0 6240 41604K/60p24.013.4185383
8.
 
Fujifilm X100F APS-C 24.0 6000 40001080/60p23.913.2170481
9.
 
Fujifilm X-Pro2 APS-C 24.0 6000 40001080/60p23.713.0160880
10.
 
Fujifilm X-T2 APS-C 24.0 6000 40004K/30p23.813.1165381
11.
 
Fujifilm X100T APS-C 16.0 4896 32641080/60p23.612.8148378
12.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
13.
 
Pentax KP APS-C 24.1 6016 40001080/60i23.913.2169981
14.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
15.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.6110680
16.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
17.
 
Sigma fp Full Frame 24.0 6000 40004K/30p25.214.2282994
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, and both provide the same movie specifications (4K/30p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X100V has an electronic viewfinder (3690k dots), while the K-3 III has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the K-3 III has a higher magnification than the one of the X100V (0.70x vs 0.44x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Fujifilm X100V, the Pentax K-3 III, and comparable 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 X100V3690 n3.0 / 1620 tilting Y 1/4000s 11.0/s n n
2.
 
Pentax K-3 IIIoptical Y3.2 / 1620 fixed Y 1/8000s 12.0/s n Y
3.
 
Canon RP2360 n3.0 / 1040 swivel Y 1/4000s 5.0/s n n
4.
 
Canon G1 X Mark III2360 n3.0 / 1040 swivel Y 1/2000s 9.0/s Y Y
5.
 
Fujifilm X100VI3690 n3.0 / 1620 tilting Y 1/4000s 11.0/s n Y
6.
 
Fujifilm X-Pro33690 n3.0 / 1620 tilting Y 1/8000s 8.0/s n n
7.
 
Fujifilm X-T33690 n3.0 / 1040 full-flex Y 1/8000s 11.0/s n n
8.
 
Fujifilm X100F2360 n3.0 / 1040 fixed n 1/4000s 8.0/s Y n
9.
 
Fujifilm X-Pro22360 n3.0 / 1620 fixed n 1/8000s 8.0/s n n
10.
 
Fujifilm X-T22360 n3.0 / 1040 full-flex n 1/8000s 8.0/s n n
11.
 
Fujifilm X100T2360 n3.0 / 1040 fixed n 1/4000s 6.0/s Y n
12.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
13.
 
Pentax KPoptical n3.0 / 921 tilting n 1/6000s 7.0/s Y Y
14.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
15.
 
Pentax K-3 IIoptical Y3.2 / 1037 fixed n 1/8000s 8.3/s n Y
16.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
17.
 
Sigma fpoptional n3.2 / 2100 fixed Y 1/8000s 12.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One feature that is present on the K-3 III, but is missing on the X100V 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 X100V 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 X100V and the Pentax K-3 III both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the X100V and the K-3 III write their files to SDXC cards. The K-3 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the X100V only has one slot. The K-3 III supports UHS-II cards (on its first slot), while the X100V can use UHS-I cards.

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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 X100V and Pentax K-3 III 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 X100VYstereo / monoY-micro3.1Y-Y
2.
 
Pentax K-3 IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Canon RPYstereo / monoYYmicro2.0Y-Y
4.
 
Canon G1 X Mark IIIYstereo / mono--micro2.0YYY
5.
 
Fujifilm X100VIYstereo / monoY-micro3.2Y-Y
6.
 
Fujifilm X-Pro3Ystereo / monoY--3.1Y-Y
7.
 
Fujifilm X-T3Ystereo / monoYYmicro3.1Y-Y
8.
 
Fujifilm X100FYstereo / monoY-micro2.0Y--
9.
 
Fujifilm X-Pro2Ystereo / monoY-micro2.0Y--
10.
 
Fujifilm X-T2Ystereo / monoY-micro3.0Y--
11.
 
Fujifilm X100TYstereo / monoY-micro2.0Y--
12.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
13.
 
Pentax KPYstereo / monoY--2.0Y--
14.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
15.
 
Pentax K-3 IIYmono / monoYYmini3.0---
16.
 
Pentax K-3Ymono / monoYYmini3.0---
17.
 
Sigma fpYstereo / monoY-micro3.1---
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Studio photographers will appreciate that the Pentax K-3 III (unlike the X100V) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the K-3 III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The K-3 III is a recent model that features in the current product line-up of Pentax. In contrast, the X100V has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the X100V was succeeded by the Fujifilm X100VI. Further information on the features and operation of the X100V and K-3 III can be found, respectively, in the Fujifilm X100V Manual (free pdf) or the online Pentax K-3 III Manual.

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Review summary

So how do things add up? Which of the two cameras – the Fujifilm X100V or the Pentax K-3 III – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Fujifilm X100V:

  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Comes with a built-in lens, while the K-3 III requires a separate lens.
  • More compact: Is smaller (128x75mm vs 135x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the K-3 III).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been on the market for longer (launched in February 2020).

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Arguments in favor of the Pentax K-3 III:

  • 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.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.44x).
  • 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.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (800 versus 420) out of a single battery charge.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Was introduced somewhat (1 year and 1 month) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the K-3 III is the clear winner of the contest (16 : 10 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

X100V 10:16 K-3 III

How about other alternatives? Do the specifications of the Fujifilm X100V and the Pentax K-3 III place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact 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 remains incomplete and does no justice, for example, to the way the X100V or the K-3 III 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.

Expert reviews

This is where reviews by experts come in. 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 X100V5/5+ +4.5/586/1005/54.5/5 Feb 2020 1,399ebay.com
2.
 
Pentax K-3 III4/5..3/5..4.5/5.. Mar 2021 1,999 amazon.com
3.
 
Canon RP4/5+4/5..4.5/54/5 Feb 2019 1,299 amazon.com
4.
 
Canon G1 X Mark III5/5+4/579/1004.5/54.5/5 Oct 2017 1,299ebay.com
5.
 
Fujifilm X100VI5/5+ +4.5/5....4.5/5 Feb 2024 1,599 amazon.com
6.
 
Fujifilm X-Pro34/5+4/585/1004/5.. Oct 2019 1,799 amazon.com
7.
 
Fujifilm X-T35/5+ +4.5/588/1005/55/5 Sep 2018 1,499ebay.com
8.
 
Fujifilm X100F5/5+3.9/583/1004.5/54.5/5 Jan 2017 1,299ebay.com
9.
 
Fujifilm X-Pro2..+..83/1004.5/54.5/5 Jan 2016 1,699ebay.com
10.
 
Fujifilm X-T25/5+ +..86/1004.5/55/5 Jul 2016 1,599ebay.com
11.
 
Fujifilm X100T5/5+..81/1004.5/55/5 Sep 2014 1,299ebay.com
12.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 1,999 amazon.com
13.
 
Pentax KP4/5..3/582/1005/54.5/5 Jan 2017 1,099ebay.com
14.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 649ebay.com
15.
 
Pentax K-3 II4.5/5......5/55/5 Apr 2015 1,099ebay.com
16.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
17.
 
Sigma fp4/5..4/5..4/54.5/5 Jul 2019 1,899 amazon.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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications: Fujifilm X100V vs Pentax K-3 III

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Fujifilm X100V Pentax K-3 III
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 35mm f/2.0 Pentax K mount lenses
    Launch Date February 2020 March 2021
    Launch Price USD 1,399 USD 1,999
    Sensor Specs Fujifilm X100V Pentax K-3 III
    Sensor Technology BSI-CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 23.6 x 15.6 mm 23.3 x 15.5 mm
    Sensor Area 368.16 mm2 361.15 mm2
    Sensor Diagonal 28.3 mm 28 mm
    Crop Factor 1.5x 1.5x
    Sensor Resolution 26 Megapixels 25.6 Megapixels
    Image Resolution 6240 x 4160 pixels 6192 x 4128 pixels
    Pixel Pitch 3.76 μm 3.76 μm
    Pixel Density 7.05 MP/cm2 7.08 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 160 - 12,800 ISO 100 - 160,000 ISO
    ISO Boost 80 - 51,200 ISO no Enhancement
    Image Processor X-Processor 4 PRIME V
    Screen Specs Fujifilm X100V Pentax K-3 III
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.44x 0.70x
    Viewfinder Resolution 3690k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 1620k dots 1620k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Fujifilm X100V Pentax K-3 III
    Focus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 11 shutter flaps/s 12 shutter flaps/s
    Electronic Shutterup to 1/32000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image Stabilizationno shake reductionIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I Single UHS-II
    Connectivity Specs Fujifilm X100V Pentax K-3 III
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 3.1 USB 3.2
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Geotagging no internal GPS GPS built-in
    Body Specs Fujifilm X100V Pentax K-3 III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Fujifilm NP-W126S Pentax D-LI90
    Battery Life (CIPA)420 shots per charge800 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 128 x 75 x 53 mm
    (5.0 x 3.0 x 2.1 in)
    135 x 104 x 74 mm
    (5.3 x 4.1 x 2.9 in)
    Camera Weight 478 g (16.9 oz) 820 g (28.9 oz)
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