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Pentax K-30 vs Sony A7 III

The Pentax K-30 and the Sony Alpha A7 III are two digital cameras that were announced, respectively, in May 2012 and February 2018. The K-30 is a DSLR, while the A7 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (K-30) 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-30
versus
Sony A7 III
Pentax K-30 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 100-12,800 (100 - 25,600) 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

Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax K-30 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Pentax K-30 and the Sony A7 III. 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 K-30 can be obtained in seven different colors (black, silver, blue, red, yellow, green, white), while the A7 III is only available in black.

Size Pentax K-30 vs Sony A7 III
Compare K-30 versus A7 III top
Comparison K-30 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-30. 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-30 gets 410 shots out of its D-LI109 battery, while the A7 III can take 610 images on a single charge of its 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax K-30 130 mm 97 mm 71 mm 650 g 410 Y May 2012 849 i
2.
 
Sony A7 III 127 mm 96 mm 74 mm 650 g 610 Y Feb 2018 1,999 i
3.
 
Nikon Z6 134 mm 101 mm 67 mm 675 g 310 Y Aug 2018 1,999 i
4.
 
Pentax KP 132 mm 101 mm 76 mm 703 g 390 Y Jan 2017 1,099 i
5.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 749 i
6.
 
Pentax K-3 II 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099 i
7.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749 i
8.
 
Pentax K-50 130 mm 97 mm 71 mm 650 g 410 Y Jun 2013 599 i
9.
 
Pentax K-500 130 mm 97 mm 71 mm 646 g 710 n Jun 2013 549 i
10.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299 i
11.
 
Pentax K-5 II 131 mm 97 mm 73 mm 760 g 740 Y Sep 2012 1,099 i
12.
 
Pentax K-5 131 mm 97 mm 73 mm 760 g 740 Y Sep 2010 1,099 i
13.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
14.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199 i
15.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499 i
16.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999 i
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 1,399 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The K-30 was launched at a markedly lower price (by 58 percent) than the A7 III, 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.

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Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 Pentax K-30 features an APS-C sensor and the Sony A7 III a full frame sensor. The sensor area in the A7 III is 129 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-30 and Sony A7 III sensor measures

With 24MP, the A7 III offers a higher resolution than the K-30 (16.1MP), but the A7 III nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.79μm for the K-30) due to its larger sensor. Moreover, the A7 III is a much more recent model (by 5 years and 9 months) than the K-30, 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-30 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-30 has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. 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.

K-30 versus A7 III MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A7 III offers substantially better image quality than the K-30 (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 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Pentax K-30 APS-C 16.1 4928 32641080/30p23.713.01129 79
2.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.73730 96
3.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.33299 95
4.
 
Pentax KP APS-C 24.1 6016 40001080/60i...... ..
5.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p...... ..
6.
 
Pentax K-3 II APS-C 24.1 6016 40001080/60i23.613.61106 80
7.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.01061 78
8.
 
Pentax K-50 APS-C 16.1 4928 32641080/30p23.713.01120 79
9.
 
Pentax K-500 APS-C 16.1 4928 32641080/30p23.713.11087 79
10.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.41216 80
11.
 
Pentax K-5 II APS-C 16.1 4928 32641080/25p23.814.11235 82
12.
 
Pentax K-5 APS-C 16.1 4928 32641080/25p23.714.11162 82
13.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.83344 99
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523 100
15.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.33517 92
16.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.62449 90
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.2801 78

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

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7 III has an electronic viewfinder (2359k dots), while the K-30 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-30 (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-30 and Sony A7 III in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Pentax K-30optical n 3.0 921 fixed n 1/6000s 6.0 Y Y
2.
 
Sony A7 III2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y
3.
 
Nikon Z63690 Y 3.2 2100 tilting Y 1/8000s 12.0 n Y
4.
 
Pentax KPoptical n 3.0 921 tilting n 1/6000s 7.0 Y Y
5.
 
Pentax K-S2optical n 3.0 921 swivel n 1/6000s 5.4 Y Y
6.
 
Pentax K-3 IIoptical Y 3.2 1037 fixed n 1/8000s 8.3 n Y
7.
 
Pentax K-S1optical n 3.0 921 fixed n 1/6000s 5.4 Y Y
8.
 
Pentax K-50optical n 3.0 921 fixed n 1/6000s 6.0 Y Y
9.
 
Pentax K-500optical n 3.0 921 fixed n 1/6000s 6.0 Y Y
10.
 
Pentax K-3optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y
11.
 
Pentax K-5 IIoptical Y 3.0 921 fixed n 1/8000s 7.0 Y Y
12.
 
Pentax K-5optical Y 3.0 921 fixed n 1/8000s 7.0 Y Y
13.
 
Sony A7R IV5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
14.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
15.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
16.
 
Sony A7 II2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y
17.
 
Sony A772359 Y 3.0 921 full-flex n 1/8000s 12.0 Y Y

One difference between the cameras concerns the presence of an on-board flash. The K-30 has one, while the A7 III does not. While the built-in flash of the K-30 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 Sony A7 III 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.

The K-30 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-30 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-30 cannot take advantage of Ultra High Speed SD 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 Pentax K-30 and Sony Alpha A7 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
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Pentax K-30Ymonomono---2.0---
2.
 
Sony A7 IIIYstereomonoYYmicro3.1YYY
3.
 
Nikon Z6YstereomonoYYmicro3.1Y-Y
4.
 
Pentax KPYstereomonoY--2.0Y--
5.
 
Pentax K-S2YmonomonoY-micro2.0YY-
6.
 
Pentax K-3 IIYmonomonoYYmini3.0---
7.
 
Pentax K-S1Ystereomono--micro2.0---
8.
 
Pentax K-50Ymonomono--micro2.0---
9.
 
Pentax K-500Ymonomono---2.0---
10.
 
Pentax K-3YmonomonoYYmini3.0---
11.
 
Pentax K-5 IIYstereomonoY-mini2.0---
12.
 
Pentax K-5YstereomonoY-mini2.0---
13.
 
Sony A7R IVYstereomonoYYmicro3.1YYY
14.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
15.
 
Sony A9YstereomonoYYmicro2.0YYY
16.
 
Sony A7 IIYstereomonoYYmicro2.0YY-
17.
 
Sony A77YstereomonoY-mini2.0---

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-30 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-30 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-30 was succeeded by the Pentax K-50. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Pentax and Sony websites.

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Review summary

So how do things add up? Is there a clear favorite between the Pentax K-30 and the Sony A7 III? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Pentax K-30:

  • 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 (58 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in May 2012).

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Advantages of 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.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency 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 5 years and 9 months of technical progress since the K-30 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7 III is the clear winner of the contest (27 : 4 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 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.

K-30 04:27 A7 III

How about other alternatives? Do the specifications of the Pentax K-30 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the K-30 or the A7 III. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Pentax K-304/5..78/1004.5/54.5/5 May 2012 849 i
2.
 
Sony A7 III..+ +89/1005/55/5 Feb 2018 1,999 i
3.
 
Nikon Z65/5....4.5/55/5 Aug 2018 1,999 i
4.
 
Pentax KP4/5..82/1005/54.5/5 Jan 2017 1,099 i
5.
 
Pentax K-S24.5/5....5/54.5/5 Feb 2015 749 i
6.
 
Pentax K-3 II4.5/5....5/55/5 Apr 2015 1,099 i
7.
 
Pentax K-S14/5....4.5/54/5 Aug 2014 749 i
8.
 
Pentax K-505/5....5/54.5/5 Jun 2013 599 i
9.
 
Pentax K-500......4.5/54.5/5 Jun 2013 549 i
10.
 
Pentax K-34/5..83/1005/55/5 Oct 2013 1,299 i
11.
 
Pentax K-5 II5/5..80/1005/54.5/5 Sep 2012 1,099 i
12.
 
Pentax K-54/5..83/1005/54.5/5 Sep 2010 1,099 i
13.
 
Sony A7R IV5/5+91/1004.5/55/5 Jul 2019 3,499 i
14.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199 i
15.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499 i
16.
 
Sony A7 II5/5+82/1004.5/55/5 Nov 2014 1,999 i
17.
 
Sony A775/591/10081/100..5/5 Aug 2011 1,399 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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.

Pentax K-30:
Check Ebay offers
Sony A7 III:
Check Amazon price

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.

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    Specifications: Pentax K-30 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-30 Sony A7 III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Pentax K mount lenses Sony E mount lenses
    Launch Date May 2012 February 2018
    Launch Price USD 849 USD 1,999
    Sensor Specs Pentax K-30 Sony A7 III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 23.7 x 15.6 mm 35.6 x 23.8 mm
    Sensor Area 369.72 mm2 847.28 mm2
    Sensor Diagonal 28.4 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 4.79 μm 5.94 μm
    Pixel Density 4.35 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 - 12,800 ISO 100 - 51,200 ISO
    ISO Boost 100 - 25,600 ISO 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) 1129 3730
    Screen Specs Pentax K-30 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-30 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 Photographyno IntervalometerIntervalometer 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
    Second Storage Option Single card slot Dual card slots
    UHS card support no Single UHS-II
    Connectivity Specs Pentax K-30 Sony A7 III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.1
    HDMI Port no 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-30 Sony A7 III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type D-LI109 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)

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