A potelyt.com – Photography & Imaging Resources
ad

When you use links on apotelyt.com to buy products,
the site may earn a commission.

PW

Pentax K-50 vs Sony A7 III

The Pentax K-50 and the Sony Alpha A7 III are two digital cameras that were announced, respectively, in June 2013 and February 2018. The K-50 is a DSLR, while the A7 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (K-50) and a full frame (A7 III) sensor. The Pentax has a resolution of 16.1 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications
Pentax K-50
versus
Sony A7 III
Pentax K-50   Sony A7 III
Digital single lens reflex Mirrorless system camera
Pentax K mount lenses Sony E mount lenses
16.1 MP – APS-C sensor 24 MP – Full Frame sensor
1080/30p Video 4K/30p Video
ISO 100-51,200 ISO 100-51,200 (50 - 204,800)
Optical viewfinder Electronic viewfinder (2359k dots)
3.0" LCD – 921k dots 3.0" LCD – 922k dots
Fixed screen (not touch-sensitive) Tilting touchscreen
6 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
410 shots per battery charge610 shots per battery charge
130 x 97 x 71 mm, 650 g 127 x 96 x 74 mm, 650 g
logo
Check K-50 offers at
ebay.com
logo
Check A7 III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax K-50 and the Sony Alpha A7 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.

ad

Body comparison

An illustration of the physical size and weight of the Pentax K-50 and the Sony A7 III 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 size dimensions are rounded to the nearest millimeter.

The K-50 can be obtained in three different colors (black, red, white), while the A7 III is only available in black.

Size Pentax K-50 vs Sony A7 III
Compare K-50 versus A7 III top
Comparison K-50 or A7 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 III is somewhat smaller (3 percent) than the Pentax K-50. In terms of weight, the two cameras are very close. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the K-50 gets 410 shots out of its Pentax D-LI109 battery, while the A7 III can take 610 images on a single charge of its Sony NP-FZ100 power pack. The power pack in the A7 III can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

scroll hint
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.
 
Pentax K-50 130 mm 97 mm 71 mm 650 g 410 Y Jun 2013 599ebay.com
2.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 amazon.com
3.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999ebay.com
4.
 
Nikon Df 144 mm 110 mm 67 mm 760 g 1400 Y Nov 2013 2,749ebay.com
5.
 
Olympus E-M10 119 mm 82 mm 46 mm 396 g 320 n Jan 2014 699ebay.com
6.
 
Panasonic GH4 133 mm 93 mm 84 mm 560 g 500 Y Feb 2014 1,499ebay.com
7.
 
Pentax K-70 126 mm 93 mm 74 mm 688 g 410 Y Jun 2016 649ebay.com
8.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749ebay.com
9.
 
Pentax K-500 130 mm 97 mm 71 mm 646 g 710 n Jun 2013 549ebay.com
10.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299ebay.com
11.
 
Pentax K-30 130 mm 97 mm 71 mm 650 g 410 Y May 2012 849ebay.com
12.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 1,099ebay.com
13.
 
Pentax K-5 131 mm 97 mm 73 mm 760 g 740 Y Sep 2010 1,099ebay.com
14.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499ebay.com
15.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199ebay.com
16.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499ebay.com
17.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
padding

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The K-50 was launched at a markedly lower price (by 70 percent) than the A7 III, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 size of the sensor inside a digital camera is one of the key determinants 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Pentax K-50 features an APS-C sensor and the Sony A7 III a full frame sensor. The sensor area in the A7 III is 131 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.

Pentax K-50 and Sony A7 III sensor measures

With 24MP, the A7 III offers a higher resolution than the K-50 (16.1MP), but the A7 III nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.77μm for the K-50) due to its larger sensor. Moreover, the A7 III is a much more recent model (by 4 years and 8 months) than the K-50, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A7 III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 III for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Pentax K-50 are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.

The A7 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Pentax K-50 has a native sensitivity range from ISO 100 to ISO 51200. The corresponding ISO settings for the Sony Alpha A7 III are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the K-50 is build around a CMOS sensor, while the A7 III uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

K-50 versus A7 III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the A7 III offers substantially better image quality than the K-50 (overall score 17 points higher). The advantage is based on 1.3 bits higher color depth, 1.7 EV in additional dynamic range, and 1.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

scroll hint
Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Pentax K-50 APS-C 16.1 4928 32641080/30p23.713.0112079
2.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
3.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
4.
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989
5.
 
Olympus E-M10 Four Thirds 15.9 4608 34561080/30p22.812.388472
6.
 
Panasonic GH4 Four Thirds 15.9 4608 34564K/30p23.212.879174
7.
 
Pentax K-70 APS-C 24.0 6000 40001080/60i23.813.1163980
8.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.0106178
9.
 
Pentax K-500 APS-C 16.1 4928 32641080/30p23.713.1108779
10.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.4121680
11.
 
Pentax K-30 APS-C 16.1 4928 32641080/30p23.713.0112979
12.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.1123582
13.
 
Pentax K-5 APS-C 16.1 4928 32641080/25p23.714.1116282
14.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
15.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
16.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
17.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
Note: DXO values in italics represent estimates based on sensor size and age.
padding

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 A7 III provides a better video resolution than the K-50. It can shoot movie footage at 4K/30p, while the Pentax is limited to 1080/30p.

ad

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7 III has an electronic viewfinder (2359k dots), while the K-50 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 A7 III has a higher magnification than the one of the K-50 (0.78x vs 0.61x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Pentax K-50 and Sony A7 III in connection with corresponding information for a sample of similar cameras.

scroll hint
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.
 
Pentax K-50optical n3.0 / 921 fixed n 1/6000s 6.0/s Y Y
2.
 
Sony A7 III2359 n3.0 / 922 tilting Y 1/8000s 10.0/s n Y
3.
 
Nikon Z63690 Y3.2 / 2100 tilting Y 1/8000s 12.0/s n Y
4.
 
Nikon Dfoptical Y3.2 / 921 fixed n 1/4000s 5.5/s n n
5.
 
Olympus E-M101440 n3.0 / 1037 tilting Y 1/4000s 8.0/s Y Y
6.
 
Panasonic GH42359 n3.0 / 1036 swivel Y 1/8000s 12.0/s Y n
7.
 
Pentax K-70optical n3.0 / 921 swivel n 1/6000s 6.0/s Y Y
8.
 
Pentax K-S1optical n3.0 / 921 fixed n 1/6000s 5.4/s Y Y
9.
 
Pentax K-500optical n3.0 / 921 fixed n 1/6000s 6.0/s Y Y
10.
 
Pentax K-3optical Y3.2 / 1037 fixed n 1/8000s 8.3/s Y Y
11.
 
Pentax K-30optical n3.0 / 921 fixed n 1/6000s 6.0/s Y Y
12.
 
Pentax K-5 IIoptical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
13.
 
Pentax K-5optical Y3.0 / 921 fixed n 1/8000s 7.0/s Y Y
14.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
15.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
16.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
17.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One difference between the cameras concerns the presence of an on-board flash. The K-50 has one, while the A7 III does not. While the built-in flash of the K-50 is not very powerful, it can at times be useful as a fill-in light.

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 A7 III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Pentax K-50 and the Sony A7 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.

The K-50 writes its imaging data to SDXC cards, while the A7 III uses SDXC or Memory Stick PRO Duo cards. The A7 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the K-50 only has one slot. The A7 III supports UHS-II cards on its first slot and UHS-I on its second one, while the K-50 cannot take advantage of Ultra High Speed SD cards.

ad

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Pentax K-50 and Sony Alpha A7 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

scroll hint
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.
 
Pentax K-50Ymono / mono--micro2.0---
2.
 
Sony A7 IIIYstereo / monoYYmicro3.1YYY
3.
 
Nikon Z6Ystereo / monoYYmicro3.1Y-Y
4.
 
Nikon DfY- / ---mini2.0---
5.
 
Olympus E-M10Ystereo / mono--micro2.0Y--
6.
 
Panasonic GH4Ystereo / monoYYmicro2.0YY-
7.
 
Pentax K-70Ystereo / monoY-mini2.0Y--
8.
 
Pentax K-S1Ystereo / mono--micro2.0---
9.
 
Pentax K-500Ymono / mono---2.0---
10.
 
Pentax K-3Ymono / monoYYmini3.0---
11.
 
Pentax K-30Ymono / mono---2.0---
12.
 
Pentax K-5 IIYstereo / monoY-mini2.0---
13.
 
Pentax K-5Ystereo / monoY-mini2.0---
14.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
15.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
16.
 
Sony A9Ystereo / monoYYmicro2.0YYY
17.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
padding

It is notable that the A7 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the K-50 does not provide wifi capability.

The A7 III is a recent model that features in the current product line-up of Sony. In contrast, the K-50 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the K-50 was succeeded by the Pentax K-70. Further information on the features and operation of the K-50 and A7 III can be found, respectively, in the Pentax K-50 Manual (free pdf) or the online Sony A7 III Manual.

ad

Review summary

So how do things add up? Is the Pentax K-50 better than the Sony A7 III or vice versa? The listing below highlights the relative strengths of the two models.

ilogo

Advantages of the Pentax K-50:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (70 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in June 2013).

ilogo

Reasons to prefer the Sony Alpha A7 III:

  • More detail: Has more megapixels (24 vs 16.1MP), which boosts linear resolution by 22%.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.3 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.7 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.7 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.61x).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/6000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Longer lasting: Gets more shots (610 versus 410) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 4 years and 8 months of technical progress since the K-50 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7 III is the clear winner of the contest (26 : 4 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

K-50 04:26 A7 III

How about other alternatives? Do the specifications of the Pentax K-50 and the Sony A7 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the K-50 and the A7 III in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

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 (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.

scroll hint
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.
 
Pentax K-505/5......5/54.5/5 Jun 2013 599ebay.com
2.
 
Sony A7 III..+ +4.5/589/1005/55/5 Feb 2018 1,999 amazon.com
3.
 
Nikon Z65/5..5/589/1004.5/55/5 Aug 2018 1,999ebay.com
4.
 
Nikon Df4/5....81/1004/54/5 Nov 2013 2,749ebay.com
5.
 
Olympus E-M104/5....80/1005/55/5 Jan 2014 699ebay.com
6.
 
Panasonic GH45/5+ +..85/1005/55/5 Feb 2014 1,499ebay.com
7.
 
Pentax K-704.5/5..4/579/1004.5/54.5/5 Jun 2016 649ebay.com
8.
 
Pentax K-S14/5......4.5/54/5 Aug 2014 749ebay.com
9.
 
Pentax K-500........4.5/54.5/5 Jun 2013 549ebay.com
10.
 
Pentax K-34/5....83/1005/55/5 Oct 2013 1,299ebay.com
11.
 
Pentax K-304/5....78/1004.5/54.5/5 May 2012 849ebay.com
12.
 
Pentax K-5 II5/5....80/1005/54.5/5 Sep 2012 1,099ebay.com
13.
 
Pentax K-54/5....83/1005/54.5/5 Sep 2010 1,099ebay.com
14.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 3,499ebay.com
15.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 3,199ebay.com
16.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 4,499ebay.com
17.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 1,999ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
padding

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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

logo
Check K-50 offers at
ebay.com
logo
Check A7 III price at
amazon.com

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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

~
    loader
    ad

    Specifications: Pentax K-50 vs Sony A7 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 Pentax K-50 Sony A7 III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Pentax K mount lenses Sony E mount lenses
    Launch Date June 2013 February 2018
    Launch Price USD 599 USD 1,999
    Sensor Specs Pentax K-50 Sony A7 III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.5 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 366.6 mm2 847.28 mm2
    Sensor Diagonal 28.2 mm 42.8 mm
    Crop Factor 1.5x 1.0x
    Sensor Resolution 16.1 Megapixels 24 Megapixels
    Image Resolution 4928 x 3264 pixels 6000 x 4000 pixels
    Pixel Pitch 4.77 μm 5.94 μm
    Pixel Density 4.39 MP/cm2 2.83 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100 - 51,200 ISO 100 - 51,200 ISO
    ISO Boost no Enhancement 50 - 204,800 ISO
    Image Processor PRIME M BIONZ X
    DXO Sensor Quality (score) 79 96
    DXO Color Depth (bits) 23.7 25.0
    DXO Dynamic Range (EV) 13.0 14.7
    DXO Low Light (ISO) 1120 3730
    Screen Specs Pentax K-50 Sony A7 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.61x 0.78x
    Viewfinder Resolution 2359k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 921k dots 922k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Pentax K-50 Sony A7 III
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/6000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support no Single UHS-II
    Connectivity Specs Pentax K-50 Sony A7 III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Pentax K-50 Sony A7 III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Pentax D-LI109 Sony NP-FZ100
    Battery Life (CIPA)410 shots per charge610 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 130 x 97 x 71 mm
    (5.1 x 3.8 x 2.8 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 650 g (22.9 oz) 650 g (22.9 oz)
    logo
    Check K-50 offers at
    ebay.com
    logo
    Check A7 III price at
    amazon.com

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

    You are here Home  »  CAM-parator  »  Pentax K-50 vs Sony A7 III