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Pentax K-1 vs Sony A58

The Pentax K-1 and the Sony Alpha SLT-A58 are two digital cameras that were officially introduced, respectively, in February 2016 and February 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (K-1) and an APS-C (A58) sensor. The Pentax has a resolution of 36.2 megapixels, whereas the Sony provides 19.8 MP.

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

Headline Specifications
Pentax K-1   Sony A58
Pentax K-1 Sony A58
Digital single lens reflex Digital single lens reflex
Pentax K mount lenses Sony A mount lenses
36.2 MP, Full Frame Sensor 19.8 MP, APS-C Sensor
1080/60i Video 1080/60i Video
ISO 100-204800 ISO 100-16000 (100-25600)
Optical viewfinder Electronic viewfinder (1440k dots)
3.2" LCD, 1037k dots 2.7" LCD, 460k dots
Fully flexible screen (no touchscreen) Tilting screen (not touch-sensitive)
4.4 shutter flaps per second 5 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyNot weather sealed
760 shots per battery charge690 shots per battery charge
137 x 110 x 86 mm, 1010 g 129 x 95 x 78 mm, 492 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax K-1 and the Sony Alpha SLT-A58? 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: Pentax K-1 vs Sony A58

An illustration of the physical size and weight of the Pentax K-1 and the Sony A58 is provided in the side-by-side display below. 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.

The K-1 can be obtained in two different colors (black, silver), while the A58 is only available in black.

Size Pentax K-1 vs Sony A58
Compare K-1 versus A58 top
Comparison K-1 or A58 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A58 is notably smaller (19 percent) than the Pentax K-1. Moreover, the A58 is substantially lighter (51 percent) than the K-1. It is worth mentioning in this context that the K-1 is splash and dust resistant, while the A58 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 K-1 gets 760 shots out of its D-LI90 battery, while the A58 can take 690 images on a single charge of its NP-FM500H power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Pentax K-1» 137 mm 110 mm 86 mm 1010 g 760 Y Feb 2016 1,799- i Pentax K-1
 
Sony A58« 129 mm 95 mm 78 mm 492 g 690 n Feb 2013 599- i Sony A58
 
Canon 5D Mark IV« » 151 mm 116 mm 76 mm 890 g 900 Y Aug 2016 3,499 i i Canon 5D Mark IV
 
Canon 100D« » 117 mm 91 mm 69 mm 407 g 380 n Mar 2013 549- i Canon 100D
 
Nikon D500« » 147 mm 115 mm 81 mm 860 g 1240 Y Jan 2016 1,999 i i Nikon D500
 
Nikon D3300« » 124 mm 98 mm 76 mm 430 g 700 n Jan 2014 499- i Nikon D3300
 
Olympus E-M1 II« » 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 1,999 i i Olympus E-M1 II
 
Panasonic GH5« » 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 1,999 i i Panasonic GH5
 
Pentax K-1 II« » 137 mm 110 mm 86 mm 1010 g 670 Y Feb 2018 1,999 i i Pentax K-1 II
 
Pentax K-3 II« » 131 mm 100 mm 77 mm 800 g 720 Y Apr 2015 1,099 i i Pentax K-3 II
 
Sony A7R III« » 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199 i i Sony A7R III
 
Sony A99 II« » 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i i Sony A99 II
 
Sony A7R II« » 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199- i Sony A7R II
 
Sony A7 II« » 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 1,999- i Sony A7 II
 
Sony A6000« » 120 mm 67 mm 45 mm 344 g 360 n Feb 2014 599- i Sony A6000
 
Sony RX100« » 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649- i Sony RX100
 
Sony A850« » 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999- i Sony A850
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The A58 was launched at a markedly lower price (by 67 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison: Pentax K-1 vs Sony A58

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 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. 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 Pentax K-1 features a full frame sensor and the Sony A58 an APS-C sensor. The sensor area in the A58 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Pentax K-1 and Sony A58 sensor measures

With 36.2MP, the K-1 offers a higher resolution than the A58 (19.8MP), but the K-1 nevertheless has larger individual pixels (pixel pitch of 4.88μm versus 4.31μm for the A58) due to its larger sensor. Moreover, the K-1 is a much more recent model (by 2 years and 11 months) than the A58, and its sensor will 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 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 inch or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inch or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inch or 62.3 x 41.6 cm. The corresponding values for the Sony A58 are 27.3 x 18.2 inch or 69.3 x 46.1 cm for good quality, 21.8 x 14.5 inch or 55.4 x 36.9 cm for very good quality, and 18.2 x 12.1 inch or 46.2 x 30.8 cm for excellent quality prints.

Unlike the A58, 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 Pentax K-1 has a native sensitivity range from ISO 100 to ISO 204800. The corresponding ISO settings for the Sony Alpha SLT-A58 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 100-25600.

K-1 versus A58 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. Of the two cameras under review, the K-1 provides substantially higher image quality than the A58, with an overall score that is 22 points higher. This advantage is based on 2.1 bits higher color depth, 2.1 EV in additional dynamic range, and 2.1 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Pentax K-1» Full Frame 36.2 7360 49121080/60i25.414.6328096Pentax K-1
 
Sony A58« APS-C 19.8 5456 36321080/60i23.312.575374Sony A58
 
Canon 5D Mark IV« » Full Frame 30.1 6720 44804K/30p24.813.6299591Canon 5D Mark IV
 
Canon 100D« » APS-C 17.9 5184 34561080/30p21.811.384363Canon 100D
 
Nikon D500« » APS-C 20.7 5568 37124K/30p24.014.0132483Nikon D500
 
Nikon D3300« » APS-C 24.0 6000 40001080/60p24.312.8138582Nikon D3300
 
Olympus E-M1 II« » Four Thirds 20.2 5184 38884K/30p23.712.8131280Olympus E-M1 II
 
Panasonic GH5« » Four Thirds 20.2 5184 38884K/60p23.913.080777Panasonic GH5
 
Pentax K-1 II« » Full Frame 36.2 7360 49121080/60i----Pentax K-1 II
 
Pentax K-3 II« » APS-C 24.1 6016 40001080/60i23.613.6110680Pentax K-3 II
 
Sony A7R III« » Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Sony A99 II« » Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
 
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
 
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A6000« » APS-C 24.0 6000 40001080/60p24.113.1134782Sony A6000
 
Sony RX100« » 1-inch 20.0 5472 36481080/60p22.612.439066Sony RX100
 
Sony A850« » Full Frame 24.4 6048 4032-23.812.2141579Sony A850

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 (1080/60i).

 

Feature comparison: Pentax K-1 vs Sony A58

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A58 has an electronic viewfinder (1440k dots), while the K-1 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-1 has a higher magnification than the one of the A58 (0.70x vs 0.57x), 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 Pentax K-1, the Sony A58, and comparable cameras.

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
Camera
Model
 
Pentax K-1»optical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y Pentax K-1
 
Sony A58«1440 n 2.7 460 tilting n 1/4000s 5.0 Y Y Sony A58
 
Canon 5D Mark IV« »optical Y 3.2 1620 fixed Y 1/8000s 7.0 n n Canon 5D Mark IV
 
Canon 100D« »optical n 3.0 1040 fixed Y 1/4000s 4.9 Y n Canon 100D
 
Nikon D500« »optical Y 3.2 2359 tilting Y 1/8000s 10.0 n n Nikon D500
 
Nikon D3300« »optical n 3.0 921 fixed n 1/4000s 5.0 Y n Nikon D3300
 
Olympus E-M1 II« »2360 n 3.0 1037 swivel Y 1/8000s 18.0 n Y Olympus E-M1 II
 
Panasonic GH5« »3680 n 3.2 1620 swivel Y 1/8000s 12.0 n Y Panasonic GH5
 
Pentax K-1 II« »optical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y Pentax K-1 II
 
Pentax K-3 II« »optical Y 3.2 1037 fixed n 1/8000s 8.3 n Y Pentax K-3 II
 
Sony A7R III« »3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Sony A99 II« »2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Sony A7R II« »2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7 II« »2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A6000« »1440 n 3.0 922 tilting n 1/4000s 11.0 Y n Sony A6000
 
Sony RX100« »- n 3.0 1229 fixed n 1/2000s 10.0 Y Y Sony RX100
 
Sony A850« »optical Y 3.0 922 fixed n 1/8000s 3.0 n Y Sony A850

One feature that is present on the K-1, but is missing on the A58 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 Pentax K-1 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-1 writes its imaging data to SDXC cards, while the A58 uses SDXC or Memory Stick PRO Duo cards. The K-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A58 only has one slot. The K-1 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the A58 cannot take advantage of Ultra High Speed SD cards.

 

Connectivity comparison: Pentax K-1 vs Sony A58

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-1 and Sony Alpha SLT-A58 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Pentax K-1»YstereomonoYYmicro2.0Y--Pentax K-1
 
Sony A58«YstereomonoY-mini2.0---Sony A58
 
Canon 5D Mark IV« »YmonomonoYYmini3.0YY-Canon 5D Mark IV
 
Canon 100D« »YmonomonoY-mini2.0---Canon 100D
 
Nikon D500« »YstereomonoYYmini3.0YYYNikon D500
 
Nikon D3300« »YmonomonoY-mini2.0---Nikon D3300
 
Olympus E-M1 II« »YstereomonoYYmicro3.0Y--Olympus E-M1 II
 
Panasonic GH5« »YstereomonoYYfull3.1Y-YPanasonic GH5
 
Pentax K-1 II« »YstereomonoYYmicro2.0Y--Pentax K-1 II
 
Pentax K-3 II« »YmonomonoYYmini3.0---Pentax K-3 II
 
Sony A7R III« »YstereomonoYYmicro3.1YYYSony A7R III
 
Sony A99 II« »YstereomonoYYmicro2.0YYYSony A99 II
 
Sony A7R II« »YstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A6000« »Ystereomono--micro2.0YY-Sony A6000
 
Sony RX100« »-stereomono--micro2.0---Sony RX100
 
Sony A850« »Y----mini2.0---Sony A850

It is notable that the K-1 has a headphone jack, which is not present on the A58 This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Studio photographers will appreciate that the Pentax K-1 (unlike the A58) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the K-1 and the A58 have been discontinued, but can regularly be found used on eBay. The A58 was replaced by the Sony A68, while the K-1 was followed by the Pentax K-1 II. 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.


Review summary: Pentax K-1 vs Sony A58

So what conclusions can be drawn? Is there a clear favorite between the Pentax K-1 and the Sony A58? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Pentax K-1:

  • More detail: Offers more megapixels (36.2 vs 19.8MP) with a 35% higher linear resolution.
  • 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: Scores substantially higher (22 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (2.1 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (2.1 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2.1 stops ISO advantage).
  • 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 0.57x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1037k vs 460k dots).
  • More flexible LCD: Has 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.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (760 versus 690) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • 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: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 2 years and 11 months of technical progress since the A58 launch.

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Arguments in favor of the Sony Alpha SLT-A58:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Faster burst: Shoots at higher frequency (5 vs 4.4 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (129x95mm vs 137x110mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 518g or 51 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (67 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in February 2013).

If the count of individual advantages (bullet points above) is taken as a guide, the K-1 is the clear winner of the match-up (23 : 8 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.

K-1 23:08 A58

How about other alternatives? Do the specifications of the Pentax K-1 and the Sony A58 place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing 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 incomplete and does no justice, for example, to the way the K-1 or the A58 perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews: Pentax K-1 vs Sony A58

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Pentax K-1»-84/1005/54.5/55/5 Feb 2016 1,799- i Pentax K-1
 
Sony A58«--4.5/54.5/54.5/5 Feb 2013 599- i Sony A58
 
Canon 5D Mark IV« »+ +87/1004.5/55/54.5/5 Aug 2016 3,499 i i Canon 5D Mark IV
 
Canon 100D« »+78/1004/54/54/5 Mar 2013 549- i Canon 100D
 
Nikon D500« »+ +91/1004.5/55/55/5 Jan 2016 1,999 i i Nikon D500
 
Nikon D3300« »+77/1004.5/54.5/54.5/5 Jan 2014 499- i Nikon D3300
 
Olympus E-M1 II« »+ +85/1004.5/55/54.5/5 Sep 2016 1,999 i i Olympus E-M1 II
 
Panasonic GH5« »+ +85/1004.5/55/55/5 Jan 2017 1,999 i i Panasonic GH5
 
Pentax K-1 II« »-79/1004.5/54.5/54.5/5 Feb 2018 1,999 i i Pentax K-1 II
 
Pentax K-3 II« »--5/54.5/55/5 Apr 2015 1,099 i i Pentax K-3 II
 
Sony A7R III« »+ +90/1004.5/55/55/5 Oct 2017 3,199 i i Sony A7R III
 
Sony A99 II« »-85/1004.5/54.5/54.5/5 Sep 2016 3,199 i i Sony A99 II
 
Sony A7R II« »+ +90/1005/54.5/55/5 Jun 2015 3,199- i Sony A7R II
 
Sony A7 II« »+82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
 
Sony A6000« »+80/1004.5/55/55/5 Feb 2014 599- i Sony A6000
 
Sony RX100« »+ +78/1004/55/55/5 Jun 2012 649- i Sony RX100
 
Sony A850« »-75/100-4/54.5/5 Aug 2009 1,999- i Sony A850
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Pentax K-1:
Check Ebay offers
Sony A58:
Check Ebay offers

Other camera comparisons

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    Specifications: Pentax K-1 vs Sony A58

    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-1 Sony A58
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Pentax K mount lenses Sony A mount lenses
    Launch Date February 2016 February 2013
    Launch Price USD 1799 USD 599
    Sensor Specs Pentax K-1 Sony A58
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 24.0 mm 23.5 x 15.6 mm
    Sensor Area 861.6 mm2 366.6 mm2
    Sensor Diagonal 43.2 mm 28.2 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 36.2 Megapixels 19.8 Megapixels
    Image Resolution 7360 x 4912 pixels 5456 x 3632 pixels
    Pixel Pitch 4.88 μm 4.31 μm
    Pixel Density 4.20 MP/cm2 5.41 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 1080/60i Video 1080/60i Video
    ISO Setting 100-204800 ISO 100-16000 ISO
    ISO Boost no Enhancement 100-25600 ISO
    DXO Sensor Quality (score) 96 74
    DXO Color Depth (bits) 25.4 23.3
    DXO Dynamic Range (EV) 14.6 12.5
    DXO Low Light (ISO) 3280 753
    Screen Specs Pentax K-1 Sony A58
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.70x 0.57x
    Viewfinder Resolution 1440k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2 inch 2.7 inch
    LCD Resolution 1037k dots 460k dots
    LCD Attachment Fully flexible screen Tilting screen
    Shooting Specs Pentax K-1 Sony A58
    Autofocus System Phase-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/4000/s
    Continuous Shooting 4.4 shutter flaps/s 5 shutter flaps/s
    Shutter Life Expectancy300 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-I no
    Connectivity Specs Pentax K-1 Sony A58
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Geotagging GPS built-in
    Body Specs Pentax K-1 Sony A58
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type D-LI90 power pack NP-FM500H power pack
    Battery Life (CIPA)760 shots per charge690 shots per charge
    Body Dimensions 137 x 110 x 86 mm
    (5.4 x 4.3 x 3.4 in)
    129 x 95 x 78 mm
    (5.1 x 3.7 x 3.1 in)
    Camera Weight 1010 g (35.6 oz) 492 g (17.4 oz)

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