Facebook follow Twitter follow Youtube follow
Ur-Leica Contax Camera Comparison
Leica 1600mm Vivitar Shutter count Share
A potelyt.com – Photography & Imaging Resources
ad
PW

Pentax MX-1 vs Sony A7R III

The Pentax MX-1 and the Sony Alpha A7R III are two digital cameras that were announced, respectively, in January 2013 and October 2017. The MX-1 is a fixed lens compact, while the A7R III is a mirrorless interchangeable lens camera. The cameras are based on a 1/1.7-inch (MX-1) and a full frame (A7R III) sensor. The Pentax has a resolution of 12 megapixels, whereas the Sony provides 42.2 MP.

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

Headline Specifications
Pentax MX-1 VS Sony A7R III
Pentax MX-1 Sony A7R III
Fixed lens compact camera Mirrorless system camera
28-112mm f/1.8-2.5 Sony E mount lenses
12 MP, 1/1.7" Sensor 42.2 MP, Full Frame Sensor
1080/30p Video 4K/30p Video
ISO 100-12800 ISO 100-32000 (50-102400)
No viewfinder, LCD framing Electronic viewfinder (3686k dots)
3.0" LCD, 920k dots 3.0" LCD, 1440k dots
Tilting screen (no touchscreen) Tilting touchscreen
1 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Not weather sealedWeathersealed body
290 shots per battery charge650 shots per battery charge
122 x 61 x 51 mm, 391 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 MX-1 and the Sony Alpha A7R 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 physical size and weight of the Pentax MX-1 and the Sony A7R III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Pentax MX-1 vs Sony A7R III
Compare MX-1 versus A7R III top
Comparison MX-1 or A7R III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R III is considerably larger (64 percent) than the Pentax MX-1. It is noteworthy in this context that the A7R III is splash and dust-proof, while the MX-1 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the MX-1 has a lens built in, whereas the A7R III is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the A7R III and their specifications in the Sony FE Lens Catalog.

The power pack in the A7R 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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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)
Camera
Model
 
Pentax MX-1» 4.8 in 2.4 in 2.0 in 13.8 oz 290 n Jan 2013 499iPentax MX-1
 
Sony A7R III« 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199iSony A7R III
 
Canon G16« » 4.3 in 3.0 in 1.6 in 12.6 oz 360 n Aug 2013 549 iCanon G16
 
Canon S120« » 3.9 in 2.3 in 1.1 in 7.7 oz 230 n Aug 2013 449iCanon S120
 
Canon G15« » 4.2 in 3.0 in 1.6 in 12.4 oz 350 n Sep 2012 499iCanon G15
 
Canon SX50« » 4.8 in 3.4 in 4.2 in 21.0 oz 315 n Sep 2012 429iCanon SX50
 
Fujifilm X30« » 4.7 in 2.8 in 2.4 in 14.9 oz 470 n Aug 2014 599 iFujifilm X30
 
Fujifilm X20« » 4.6 in 2.8 in 2.2 in 12.5 oz 270 n Jan 2013 599iFujifilm X20
 
Fujifilm X10« » 4.6 in 2.8 in 2.2 in 12.3 oz 270 n Sep 2011 599iFujifilm X10
 
Nikon Z7« » 5.3 in 4.0 in 2.6 in 23.8 oz 330 Y Aug 2018 3,399 iNikon Z7
 
Nikon P7800« » 4.7 in 3.1 in 2.0 in 14.1 oz 350 n Sep 2013 549iNikon P7800
 
Olympus XZ-2« » 4.4 in 2.6 in 1.9 in 12.2 oz 340 n Sep 2012 599iOlympus XZ-2
 
Panasonic LF1« » 4.1 in 2.4 in 1.1 in 6.8 oz 250 n Apr 2013 499 iPanasonic LF1
 
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499iSony A9
 
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 iSony A99 II
 
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199iSony A7R II
 
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 iSony A7S II
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The MX-1 was launched at a lower price than the A7R 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 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. 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 MX-1 features a 1/1.7-inch sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 1905 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.5 and 1.0. The sensor in the MX-1 has a native 4:3 aspect ratio, while the one in the A7R III offers a 3:2 aspect.

Pentax MX-1 and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the MX-1 (12MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 1.89μm for the MX-1) due to its larger sensor. Moreover, the A7R III is a much more recent model (by 4 years and 9 months) than the MX-1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 cm. The corresponding values for the Pentax MX-1 are 20 x 15 inch or 50.8 x 38.1 cm for good quality, 16 x 12 inch or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inch or 33.9 x 25.4 cm for excellent quality prints.

The A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the MX-1, the A7R III 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 MX-1 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

MX-1 versus A7R 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"). Of the two cameras under consideration, the A7R III offers substantially better image quality than the MX-1 (overall score 51 points higher). The advantage is based on 5.6 bits higher color depth, 3.4 EV in additional dynamic range, and 4.1 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.

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 MX-1 1/1.7 12.0 4000 30001080/30p20.411.320849Pentax MX-1
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054Canon G16
 
Canon S120 1/1.7 12.0 4000 30001080/60p21.311.924656Canon S120
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546Canon G15
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947Canon SX50
 
Fujifilm X30 2/3 12.0 4000 30001080/60p........Fujifilm X30
 
Fujifilm X20 2/3 12.0 4000 30001080/60p........Fujifilm X20
 
Fujifilm X10 2/3 12.0 4000 30001080/30p20.511.324550Fujifilm X10
 
Nikon Z7 Full Frame 45.4 8256 55044K/30p26.314.6266899Nikon Z7
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054Nikon P7800
 
Olympus XZ-2 1/1.7 11.8 3968 29761080/30p20.411.321649Olympus XZ-2
 
Panasonic LF1 1/1.7 12.0 4000 30001080/60i20.811.621152Panasonic LF1
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
 
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 A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A7R III provides a better video resolution than the MX-1. It can shoot movie footage at 4K/30p, while the Pentax is limited to 1080/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R III has an electronic viewfinder (3686k dots), which can be very helpful when shooting in bright sunlight. In contrast, the MX-1 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Pentax MX-1, the Sony A7R III, 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 MX-1none n 3.0 920 tilting n 1/8000s 1.0 Y Y Pentax MX-1
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Canon G16optical n 3.0 922 fixed n 1/4000s 2.2 Y Y Canon G16
 
Canon S120none n 3.0 922 fixed Y 1/2000s 12.1 Y Y Canon S120
 
Canon G15optical n 3.0 922 fixed n 1/4000s 2.1 Y Y Canon G15
 
Canon SX50202 n 3.0 461 swivel n 1/2000s 2.2 Y Y Canon SX50
 
Fujifilm X302360 n 3.0 920 tilting n 1/4000s 12.0 Y Y Fujifilm X30
 
Fujifilm X20optical n 2.8 460 fixed n 1/4000s 12.0 Y Y Fujifilm X20
 
Fujifilm X10optical n 2.8 460 fixed n 1/4000s 10.0 Y Y Fujifilm X10
 
Nikon Z73690 Y 3.2 2100 tilting Y 1/8000s 9.0 n Y Nikon Z7
 
Nikon P7800921 n 3.0 921 swivel n 1/4000s 8.0 Y Y Nikon P7800
 
Olympus XZ-2optional n 3.0 920 tilting Y 1/2000s 5.0 Y Y Olympus XZ-2
 
Panasonic LF1200 n 3.0 920 fixed n 1/4000s 10.0 Y Y Panasonic LF1
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y Sony A9
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II

One difference between the cameras concerns the presence of an on-board flash. The MX-1 has one, while the A7R III does not. While the built-in flash of the MX-1 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 A7R 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 A7R 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 MX-1 writes its imaging data to SDXC cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the MX-1 only has one slot. The A7R III supports UHS-II cards on its first slot and UHS-I on its second one, while the MX-1 cannot take advantage of Ultra High Speed SD cards.

 

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 MX-1 and Sony Alpha A7R III 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
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Pentax MX-1-stereomono--mini2.0---Pentax MX-1
 
Sony A7R IIIYstereomonoYYmicro3.1YYYSony A7R III
 
Canon G16Ystereomono--mini2.0Y--Canon G16
 
Canon S120-stereomono--mini2.0Y--Canon S120
 
Canon G15Ystereomono--mini2.0---Canon G15
 
Canon SX50Ystereomono--mini2.0---Canon SX50
 
Fujifilm X30Ystereomono--micro2.0Y--Fujifilm X30
 
Fujifilm X20Ystereomono--micro2.0---Fujifilm X20
 
Fujifilm X10Ystereomono--mini2.0---Fujifilm X10
 
Nikon Z7YstereomonoYYmicro3.1Y-YNikon Z7
 
Nikon P7800YstereomonoY-mini2.0---Nikon P7800
 
Olympus XZ-2Ystereomono--mini2.0---Olympus XZ-2
 
Panasonic LF1-stereomono--mini2.0YY-Panasonic LF1
 
Sony A9YstereomonoYYmicro2.0YYYSony A9
 
Sony A99 IIYstereomonoYYmicro2.0YYYSony A99 II
 
Sony A7R IIYstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7S IIYstereomonoYYmicro2.0YY-Sony A7S II

It is notable that the A7R III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the MX-1 does not offer wifi capability.

Studio photographers will appreciate that the Sony A7R III (unlike the MX-1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the MX-1 and the A7R III have been discontinued, but can regularly be found used on eBay. The A7R III was replaced by the Sony A7R IV, while the MX-1 does not have a direct successor. 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

So what is the bottom line? Is there a clear favorite between the Pentax MX-1 and the Sony A7R III? Which camera is better? The listing below highlights the relative strengths of the two models.

ilogo

Arguments in favor of the Pentax MX-1:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Ready to shoot: Has a lens built-in, whereas the A7R III requires a separate lens.
  • More compact: Is smaller (122x61mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the A7R III).
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been available for much longer (launched in January 2013).

ilogo

Reasons to prefer the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 12MP), which boosts linear resolution by 91%.
  • 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 (51 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (5.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (4.1 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.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 920k dots).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (10 vs 1 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.
  • More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
  • Longer lasting: Gets more shots (650 versus 290) out of a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • 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.
  • 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 Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 4 years and 9 months of technical progress since the MX-1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7R III is the clear winner of the contest (29 : 7 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 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.

MX-1 07:29 A7R III

How about other alternatives? Do the specifications of the Pentax MX-1 and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the MX-1 or the A7R 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear 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
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Pentax MX-1..74/1004/53.5/54/5 Jan 2013 499iPentax MX-1
 
Sony A7R III+ +90/1004.5/55/55/5 Oct 2017 3,199iSony A7R III
 
Canon G16+..4.5/54.5/54.5/5 Aug 2013 549 iCanon G16
 
Canon S120+ +..4.5/5o4.5/5 Aug 2013 449iCanon S120
 
Canon G15+76/1004.5/54.5/54.5/5 Sep 2012 499iCanon G15
 
Canon SX50+ +72/1004.5/5..4.5/5 Sep 2012 429iCanon SX50
 
Fujifilm X30..76/1004.5/54/54.5/5 Aug 2014 599 iFujifilm X30
 
Fujifilm X20+ +77/1004.5/5..5/5 Jan 2013 599iFujifilm X20
 
Fujifilm X10..76/1004/53.5/54.5/5 Sep 2011 599iFujifilm X10
 
Nikon Z7+89/1004.5/54.5/55/5 Aug 2018 3,399 iNikon Z7
 
Nikon P7800....4/53.5/54.5/5 Sep 2013 549iNikon P7800
 
Olympus XZ-2+..4.5/54/54.5/5 Sep 2012 599iOlympus XZ-2
 
Panasonic LF1+..4/5..4.5/5 Apr 2013 499 iPanasonic LF1
 
Sony A9+ +89/1005/55/55/5 Apr 2017 4,499iSony A9
 
Sony A99 II..85/1004.5/54.5/54.5/5 Sep 2016 3,199 iSony A99 II
 
Sony A7R II+ +90/1005/54.5/55/5 Jun 2015 3,199iSony A7R II
 
Sony A7S II+..4.5/55/55/5 Sep 2015 2,999 iSony A7S II
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Pentax MX-1:
Check Ebay offers
Sony A7R III:
Check Ebay offers

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.

~

    Specifications: Pentax MX-1 vs Sony A7R 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 MX-1 Sony A7R III
    Camera Type Fixed lens compact camera Mirrorless system camera
    Camera Lens 28-112mm f/1.8-2.5 Sony E mount lenses
    Launch Date January 2013 October 2017
    Launch Price USD 499 USD 3199
    Sensor Specs Pentax MX-1 Sony A7R III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format 1/1.7" Sensor Full Frame Sensor
    Sensor Size 7.6 x 5.7 mm 35.9 x 24.0 mm
    Sensor Area 43.32 mm2 861.6 mm2
    Sensor Diagonal 9.5 mm 43.2 mm
    Crop Factor 4.5x 1.0x
    Sensor Resolution 12 Megapixels 42.2 Megapixels
    Image Resolution 4000 x 3000 pixels 7952 x 5304 pixels
    Pixel Pitch 1.89 μm 4.52 μm
    Pixel Density 27.70 MP/cm2 4.90 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100-12800 ISO 100-32000 ISO
    ISO Boost no Enhancement 50-102400 ISO
    DXO Sensor Quality (score) 49 100
    DXO Color Depth (bits) 20.4 26.0
    DXO Dynamic Range (EV) 11.3 14.7
    DXO Low Light (ISO) 208 3523
    Screen Specs Pentax MX-1 Sony A7R III
    Viewfinder Type No viewfinder Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 920k dots 1440k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Pentax MX-1 Sony A7R III
    Focus System Contrast-detect AF On-Sensor Phase-detect
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/8000/s 1/8000/s
    Continuous Shooting 1 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 Build-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 MX-1 Sony A7R III
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port mini 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 MX-1 Sony A7R III
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type D-LI106 NP-FZ100
    Battery Life (CIPA)290 shots per charge650 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 122 x 61 x 51 mm
    (4.8 x 2.4 x 2.0 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 391 g (13.8 oz) 650 g (22.9 oz)

    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 MX-1 vs Sony A7R III

    Thanks for your vote!

    You rated this page 4 out of 5.


    Rating

    Any additional comment or suggestion for improvement would be welcome.



    If you like it, make sure you share it.

    • Mention this page to your Facebook friends and Twitter followers.
    • Bookmark it in your browser for future reference by pressing "Crtl" + "D".
    • Create a hyperlink by copying the text below into your web-project or discussion forum entry.

    Once again, thanks for taking the time to provide feedback.